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cmake(1) cmake(1)

NAME
cmake - Cross-Platform Makefile Generator.

USAGE
cmake [options] <path-to-source>
cmake [options] <path-to-existing-build>

DESCRIPTION
The "cmake" executable is the CMake command-line interface. It may be
used to configure projects in scripts. Project configuration settings
may be specified on the command line with the -D option. The -i option
will cause cmake to interactively prompt for such settings.

CMake is a cross-platform build system generator. Projects specify
their build process with platform-independent CMake listfiles included
in each directory of a source tree with the name CMakeLists.txt. Users
build a project by using CMake to generate a build system for a native
tool on their platform.

OPTIONS
-C <initial-cache>
Pre-load a script to populate the cache.

When cmake is first run in an empty build tree, it creates a
CMakeCache.txt file and populates it with customizable settings
for the project. This option may be used to specify a file from
which to load cache entries before the first pass through the
project's cmake listfiles. The loaded entries take priority
over the project's default values. The given file should be a
CMake script containing SET commands that use the CACHE option,
not a cache-format file.

-D <var>:<type>=<value>
Create a cmake cache entry.

When cmake is first run in an empty build tree, it creates a
CMakeCache.txt file and populates it with customizable settings
for the project. This option may be used to specify a setting
that takes priority over the project's default value. The
option may be repeated for as many cache entries as desired.

-U <globbing_expr>
Remove matching entries from CMake cache.

This option may be used to remove one or more variables from the
CMakeCache.txt file, globbing expressions using * and ? are sup‐
ported. The option may be repeated for as many cache entries as
desired.

Use with care, you can make your CMakeCache.txt non-working.

-G <generator-name>
Specify a makefile generator.

CMake may support multiple native build systems on certain plat‐
forms. A makefile generator is responsible for generating a
particular build system. Possible generator names are specified
in the Generators section.

-Wno-dev
Suppress developer warnings.

Suppress warnings that are meant for the author of the CMake‐
Lists.txt files.

-Wdev Enable developer warnings.

Enable warnings that are meant for the author of the CMake‐
Lists.txt files.

-E CMake command mode.

For true platform independence, CMake provides a list of com‐
mands that can be used on all systems. Run with -E help for the
usage information. Commands availble are: chdir, copy,
copy_if_different copy_directory, compare_files, echo,
echo_append, environment, make_directory, md5sum, remove_direc‐
tory, remove, tar, time, touch, touch_nocreate, write_regv,
delete_regv, comspec, create_symlink.

-i Run in wizard mode.

Wizard mode runs cmake interactively without a GUI. The user is
prompted to answer questions about the project configuration.
The answers are used to set cmake cache values.

-L[A][H]
List non-advanced cached variables.

List cache variables will run CMake and list all the variables
from the CMake cache that are not marked as INTERNAL or
ADVANCED. This will effectively display current CMake settings,
which can be then changed with -D option. Changing some of the
variable may result in more variables being created. If A is
specified, then it will display also advanced variables. If H is
specified, it will also display help for each variable.

-N View mode only.

Only load the cache. Do not actually run configure and generate
steps.

-P <file>
Process script mode.

Process the given cmake file as a script written in the CMake
language. No configure or generate step is performed and the
cache is not modified. If variables are defined using -D, this
must be done before the -P argument.

--graphviz=[file]
Generate graphviz of dependencies.

Generate a graphviz input file that will contain all the library
and executable dependencies in the project.

--system-information [file]
Dump information about this system.

Dump a wide range of information about the current system. If
run from the top of a binary tree for a CMake project it will
dump additional information such as the cache, log files etc.

--debug-trycompile
Do not delete the try compile directories..

Do not delete the files and directories created for try_compile
calls. This is useful in debugging failed try_compiles. It may
however change the results of the try-compiles as old junk from
a previous try-compile may cause a different test to either pass
or fail incorrectly. This option is best used for one try-com‐
pile at a time, and only when debugging.

--debug-output
Put cmake in a debug mode.

Print extra stuff during the cmake run like stack traces with
message(send_error ) calls.

--trace
Put cmake in trace mode.

Print a trace of all calls made and from where with mes‐
sage(send_error ) calls.

--help-command cmd [file]
Print help for a single command and exit.

Full documentation specific to the given command is displayed.
If a file is specified, the documentation is written into and
the output format is determined depending on the filename suf‐
fix. Supported are man page, HTML, DocBook and plain text.

--help-command-list [file]
List available listfile commands and exit.

The list contains all commands for which help may be obtained by
using the --help-command argument followed by a command name. If
a file is specified, the documentation is written into and the
output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.

--help-commands [file]
Print help for all commands and exit.

Full documentation specific for all current command is dis‐
played.If a file is specified, the documentation is written into
and the output format is determined depending on the filename
suffix. Supported are man page, HTML, DocBook and plain text.

--help-compatcommands [file]
Print help for compatibility commands.

Full documentation specific for all compatibility commands is
displayed.If a file is specified, the documentation is written
into and the output format is determined depending on the file‐
name suffix. Supported are man page, HTML, DocBook and plain
text.

--help-module module [file]
Print help for a single module and exit.

Full documentation specific to the given module is displayed.If
a file is specified, the documentation is written into and the
output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.

--help-module-list [file]
List available modules and exit.

The list contains all modules for which help may be obtained by
using the --help-module argument followed by a module name. If a
file is specified, the documentation is written into and the
output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.

--help-modules [file]
Print help for all modules and exit.

Full documentation for all modules is displayed. If a file is
specified, the documentation is written into and the output for‐
mat is determined depending on the filename suffix. Supported
are man page, HTML, DocBook and plain text.

--help-custom-modules [file]
Print help for all custom modules and exit.

Full documentation for all custom modules is displayed. If a
file is specified, the documentation is written into and the
output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.

--help-policy cmp [file]
Print help for a single policy and exit.

Full documentation specific to the given policy is displayed.If
a file is specified, the documentation is written into and the
output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.

--help-policies [file]
Print help for all policies and exit.

Full documentation for all policies is displayed.If a file is
specified, the documentation is written into and the output for‐
mat is determined depending on the filename suffix. Supported
are man page, HTML, DocBook and plain text.

--help-property prop [file]
Print help for a single property and exit.

Full documentation specific to the given property is dis‐
played.If a file is specified, the documentation is written into
and the output format is determined depending on the filename
suffix. Supported are man page, HTML, DocBook and plain text.

--help-property-list [file]
List available properties and exit.

The list contains all properties for which help may be obtained
by using the --help-property argument followed by a property
name. If a file is specified, the help is written into it.If a
file is specified, the documentation is written into and the
output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.

--help-properties [file]
Print help for all properties and exit.

Full documentation for all properties is displayed.If a file is
specified, the documentation is written into and the output for‐
mat is determined depending on the filename suffix. Supported
are man page, HTML, DocBook and plain text.

--help-variable var [file]
Print help for a single variable and exit.

Full documentation specific to the given variable is dis‐
played.If a file is specified, the documentation is written into
and the output format is determined depending on the filename
suffix. Supported are man page, HTML, DocBook and plain text.

--help-variable-list [file]
List documented variables and exit.

The list contains all variables for which help may be obtained
by using the --help-variable argument followed by a variable
name. If a file is specified, the help is written into it.If a
file is specified, the documentation is written into and the
output format is determined depending on the filename suffix.
Supported are man page, HTML, DocBook and plain text.

--help-variables [file]
Print help for all variables and exit.

Full documentation for all variables is displayed.If a file is
specified, the documentation is written into and the output for‐
mat is determined depending on the filename suffix. Supported
are man page, HTML, DocBook and plain text.

--copyright [file]
Print the CMake copyright and exit.

If a file is specified, the copyright is written into it.

--help Print usage information and exit.

Usage describes the basic command line interface and its
options.

--help-full [file]
Print full help and exit.

Full help displays most of the documentation provided by the
UNIX man page. It is provided for use on non-UNIX platforms,
but is also convenient if the man page is not installed. If a
file is specified, the help is written into it.

--help-html [file]
Print full help in HTML format.

This option is used by CMake authors to help produce web pages.
If a file is specified, the help is written into it.

--help-man [file]
Print full help as a UNIX man page and exit.

This option is used by the cmake build to generate the UNIX man
page. If a file is specified, the help is written into it.

--version [file]
Show program name/version banner and exit.

If a file is specified, the version is written into it.

GENERATORS
The following generators are available on this platform:

Unix Makefiles
Generates standard UNIX makefiles.

A hierarchy of UNIX makefiles is generated into the build tree.
Any standard UNIX-style make program can build the project
through the default make target. A "make install" target is
also provided.

CodeBlocks - Unix Makefiles
Generates CodeBlocks project files.

Project files for CodeBlocks will be created in the top direc‐
tory and in every subdirectory which features a CMakeLists.txt
file containing a PROJECT() call. Additionally a hierarchy of
makefiles is generated into the build tree. The appropriate
make program can build the project through the default make tar‐
get. A "make install" target is also provided.

Eclipse CDT4 - Unix Makefiles
Generates Eclipse CDT 4.0 project files.

Project files for Eclipse will be created in the top directory
and will have a linked resource to every subdirectory which fea‐
tures a CMakeLists.txt file containing a PROJECT() call.Addi‐
tionally a hierarchy of makefiles is generated into the build
tree. The appropriate make program can build the project through
the default make target. A "make install" target is also pro‐
vided.

KDevelop3
Generates KDevelop 3 project files.

Project files for KDevelop 3 will be created in the top direc‐
tory and in every subdirectory which features a CMakeLists.txt
file containing a PROJECT() call. If you change the settings
using KDevelop cmake will try its best to keep your changes when
regenerating the project files. Additionally a hierarchy of UNIX
makefiles is generated into the build tree. Any standard
UNIX-style make program can build the project through the
default make target. A "make install" target is also provided.

KDevelop3 - Unix Makefiles
Generates KDevelop 3 project files.

COMMANDS
add_custom_command
Add a custom build rule to the generated build system.

There are two main signatures for add_custom_command The first
signature is for adding a custom command to produce an output.

add_custom_command(OUTPUT output1 [output2 ...]
COMMAND command1 [ARGS] [args1...]
[COMMAND command2 [ARGS] [args2...] ...]
[MAIN_DEPENDENCY depend]
[DEPENDS [depends...]]
[IMPLICIT_DEPENDS <lang1> depend1 ...]
[WORKING_DIRECTORY dir]
[COMMENT comment] [VERBATIM] [APPEND])

This defines a command to generate specified OUTPUT file(s). A
target created in the same directory (CMakeLists.txt file) that
specifies any output of the custom command as a source file is
given a rule to generate the file using the command at build
time. If an output name is a relative path it will be inter‐
preted relative to the build tree directory corresponding to the
current source directory. Note that MAIN_DEPENDENCY is com‐
pletely optional and is used as a suggestion to visual studio
about where to hang the custom command. In makefile terms this
creates a new target in the following form:

OUTPUT: MAIN_DEPENDENCY DEPENDS
COMMAND

If more than one command is specified they will be executed in
order. The optional ARGS argument is for backward compatibility
and will be ignored.

The second signature adds a custom command to a target such as a
library or executable. This is useful for performing an opera‐
tion before or after building the target. The command becomes
part of the target and will only execute when the target itself
is built. If the target is already built, the command will not
execute.

add_custom_command(TARGET target
PRE_BUILD | PRE_LINK | POST_BUILD
COMMAND command1 [ARGS] [args1...]
[COMMAND command2 [ARGS] [args2...] ...]
[WORKING_DIRECTORY dir]
[COMMENT comment] [VERBATIM])

This defines a new command that will be associated with building
the specified target. When the command will happen is determined
by which of the following is specified:

PRE_BUILD - run before all other dependencies
PRE_LINK - run after other dependencies
POST_BUILD - run after the target has been built

Note that the PRE_BUILD option is only supported on Visual Stu‐
dio 7 or later. For all other generators PRE_BUILD will be
treated as PRE_LINK.

If WORKING_DIRECTORY is specified the command will be executed
in the directory given. If COMMENT is set, the value will be
displayed as a message before the commands are executed at build
time. If APPEND is specified the COMMAND and DEPENDS option val‐
ues are appended to the custom command for the first output
specified. There must have already been a previous call to this
command with the same output. The COMMENT, WORKING_DIRECTORY,
and MAIN_DEPENDENCY options are currently ignored when APPEND is
given, but may be used in the future.

If VERBATIM is given then all arguments to the commands will be
escaped properly for the build tool so that the invoked command
receives each argument unchanged. Note that one level of
escapes is still used by the CMake language processor before
add_custom_command even sees the arguments. Use of VERBATIM is
recommended as it enables correct behavior. When VERBATIM is not
given the behavior is platform specific because there is no pro‐
tection of tool-specific special characters.

If the output of the custom command is not actually created as a
file on disk it should be marked as SYMBOLIC with
SET_SOURCE_FILES_PROPERTIES.

The IMPLICIT_DEPENDS option requests scanning of implicit depen‐
dencies of an input file. The language given specifies the pro‐
gramming language whose corresponding dependency scanner should
be used. Currently only C and CXX language scanners are sup‐
ported. Dependencies discovered from the scanning are added to
those of the custom command at build time. Note that the
IMPLICIT_DEPENDS option is currently supported only for Makefile
generators and will be ignored by other generators.

If COMMAND specifies an executable target (created by ADD_EXE‐
CUTABLE) it will automatically be replaced by the location of
the executable created at build time. Additionally a tar‐
get-level dependency will be added so that the executable target
will be built before any target using this custom command. How‐
ever this does NOT add a file-level dependency that would cause
the custom command to re-run whenever the executable is recom‐
piled.

The DEPENDS option specifies files on which the command depends.
If any dependency is an OUTPUT of another custom command in the
same directory (CMakeLists.txt file) CMake automatically brings
the other custom command into the target in which this command
is built. If DEPENDS specifies any target (created by an ADD_*
command) a target-level dependency is created to make sure the
target is built before any target using this custom command.
Additionally, if the target is an executable or library a
file-level dependency is created to cause the custom command to
re-run whenever the target is recompiled.

add_custom_target
Add a target with no output so it will always be built.

add_custom_target(Name [ALL] [command1 [args1...]]
[COMMAND command2 [args2...] ...]
[DEPENDS depend depend depend ... ]
[WORKING_DIRECTORY dir]
[COMMENT comment] [VERBATIM]
[SOURCES src1 [src2...]])

Adds a target with the given name that executes the given com‐
mands. The target has no output file and is ALWAYS CONSIDERED
OUT OF DATE even if the commands try to create a file with the
name of the target. Use ADD_CUSTOM_COMMAND to generate a file
with dependencies. By default nothing depends on the custom tar‐
get. Use ADD_DEPENDENCIES to add dependencies to or from other
targets. If the ALL option is specified it indicates that this
target should be added to the default build target so that it
will be run every time (the command cannot be called ALL). The
command and arguments are optional and if not specified an empty
target will be created. If WORKING_DIRECTORY is set, then the
command will be run in that directory. If COMMENT is set, the
value will be displayed as a message before the commands are
executed at build time. Dependencies listed with the DEPENDS
argument may reference files and outputs of custom commands cre‐
ated with add_custom_command() in the same directory (CMake‐
Lists.txt file).

If VERBATIM is given then all arguments to the commands will be
escaped properly for the build tool so that the invoked command
receives each argument unchanged. Note that one level of
escapes is still used by the CMake language processor before
add_custom_target even sees the arguments. Use of VERBATIM is
recommended as it enables correct behavior. When VERBATIM is not
given the behavior is platform specific because there is no pro‐
tection of tool-specific special characters.

The SOURCES option specifies additional source files to be
included in the custom target. Specified source files will be
added to IDE project files for convenience in editing even if
they have not build rules.

add_definitions
Adds -D define flags to the compilation of source files.

add_definitions(-DFOO -DBAR ...)

Adds flags to the compiler command line for sources in the cur‐
rent directory and below. This command can be used to add any
flags, but it was originally intended to add preprocessor defi‐
nitions. Flags beginning in -D or /D that look like preproces‐
sor definitions are automatically added to the COMPILE_DEFINI‐
TIONS property for the current directory. Definitions with
non-trival values may be left in the set of flags instead of
being converted for reasons of backwards compatibility. See
documentation of the directory, target, and source file COM‐
PILE_DEFINITIONS properties for details on adding preprocessor
definitions to specific scopes and configurations.

add_dependencies
Add a dependency between top-level targets.

add_dependencies(target-name depend-target1
depend-target2 ...)

Make a top-level target depend on other top-level targets. A
top-level target is one created by ADD_EXECUTABLE, ADD_LIBRARY,
or ADD_CUSTOM_TARGET. Adding dependencies with this command can
be used to make sure one target is built before another target.
See the DEPENDS option of ADD_CUSTOM_TARGET and ADD_CUSTOM_COM‐
MAND for adding file-level dependencies in custom rules. See
the OBJECT_DEPENDS option in SET_SOURCE_FILES_PROPERTIES to add
file-level dependencies to object files.

add_executable
Add an executable to the project using the specified source
files.

add_executable(<name> [WIN32] [MACOSX_BUNDLE] [EXCLUDE_FROM_ALL]
source1 source2 ... sourceN)

Adds an executable target called <name> to be built from the
source files listed in the command invocation. The <name> cor‐
responds to the logical target name and must be globally unique
within a project. The actual file name of the executable built
is constructed based on conventions of the native platform (such
as <name>.exe or just <name>).

By default the executable file will be created in the build tree
directory corresponding to the source tree directory in which
the command was invoked. See documentation of the RUNTIME_OUT‐
PUT_DIRECTORY target property to change this location. See doc‐
umentation of the OUTPUT_NAME target property to change the
<name> part of the final file name.

If WIN32 is given the property WIN32_EXECUTABLE will be set on
the target created. See documentation of that target property
for details.

If MACOSX_BUNDLE is given the corresponding property will be set
on the created target. See documentation of the MACOSX_BUNDLE
target property for details.

If EXCLUDE_FROM_ALL is given the corresponding property will be
set on the created target. See documentation of the
EXCLUDE_FROM_ALL target property for details.

The add_executable command can also create IMPORTED executable
targets using this signature:

add_executable(<name> IMPORTED)

An IMPORTED executable target references an executable file
located outside the project. No rules are generated to build
it. The target name has scope in the directory in which it is
created and below. It may be referenced like any target built
within the project. IMPORTED executables are useful for conve‐
nient reference from commands like add_custom_command. Details
about the imported executable are specified by setting proper‐
ties whose names begin in "IMPORTED_". The most important such
property is IMPORTED_LOCATION (and its per-configuration version
IMPORTED_LOCATION_<CONFIG>) which specifies the location of the
main executable file on disk. See documentation of the
IMPORTED_* properties for more information.

add_library
Add a library to the project using the specified source files.

add_library(<name> [STATIC | SHARED | MODULE] [EXCLUDE_FROM_ALL]
source1 source2 ... sourceN)

Adds a library target called <name> to be built from the source
files listed in the command invocation. The <name> corresponds
to the logical target name and must be globally unique within a
project. The actual file name of the library built is con‐
structed based on conventions of the native platform (such as
lib<name>.a or <name>.lib).

STATIC, SHARED, or MODULE may be given to specify the type of
library to be created. STATIC libraries are archives of object
files for use when linking other targets. SHARED libraries are
linked dynamically and loaded at runtime. MODULE libraries are
plugins that are not linked into other targets but may be loaded
dynamically at runtime using dlopen-like functionality. If no
type is given explicitly the type is STATIC or SHARED based on
whether the current value of the variable BUILD_SHARED_LIBS is
true.

By default the library file will be created in the build tree
directory corresponding to the source tree directory in which
the command was invoked. See documentation of the ARCHIVE_OUT‐
PUT_DIRECTORY, LIBRARY_OUTPUT_DIRECTORY, and RUNTIME_OUT‐
PUT_DIRECTORY target properties to change this location. See
documentation of the OUTPUT_NAME target property to change the
<name> part of the final file name.

If EXCLUDE_FROM_ALL is given the corresponding property will be
set on the created target. See documentation of the
EXCLUDE_FROM_ALL target property for details.

The add_library command can also create IMPORTED library targets
using this signature:

add_library(<name> <SHARED|STATIC|MODULE|UNKNOWN> IMPORTED)

An IMPORTED library target references a library file located
outside the project. No rules are generated to build it. The
target name has scope in the directory in which it is created
and below. It may be referenced like any target built within
the project. IMPORTED libraries are useful for convenient ref‐
erence from commands like target_link_libraries. Details about
the imported library are specified by setting properties whose
names begin in "IMPORTED_". The most important such property is
IMPORTED_LOCATION (and its per-configuration version
IMPORTED_LOCATION_<CONFIG>) which specifies the location of the
main library file on disk. See documentation of the IMPORTED_*
properties for more information.

add_subdirectory
Add a subdirectory to the build.

add_subdirectory(source_dir [binary_dir]
[EXCLUDE_FROM_ALL])

Add a subdirectory to the build. The source_dir specifies the
directory in which the source CmakeLists.txt and code files are
located. If it is a relative path it will be evaluated with
respect to the current directory (the typical usage), but it may
also be an absolute path. The binary_dir specifies the directory
in which to place the output files. If it is a relative path it
will be evaluated with respect to the current output directory,
but it may also be an absolute path. If binary_dir is not speci‐
fied, the value of source_dir, before expanding any relative
path, will be used (the typical usage). The CMakeLists.txt file
in the specified source directory will be processed immediately
by CMake before processing in the current input file continues
beyond this command.

If the EXCLUDE_FROM_ALL argument is provided then targets in the
subdirectory will not be included in the ALL target of the par‐
ent directory by default, and will be excluded from IDE project
files. Users must explicitly build targets in the subdirectory.
This is meant for use when the subdirectory contains a separate
part of the project that is useful but not necessary, such as a
set of examples. Typically the subdirectory should contain its
own project() command invocation so that a full build system
will be generated in the subdirectory (such as a VS IDE solution
file). Note that inter-target dependencies supercede this
exclusion. If a target built by the parent project depends on a
target in the subdirectory, the dependee target will be included
in the parent project build system to satisfy the dependency.

add_test
Add a test to the project with the specified arguments.

add_test(testname Exename arg1 arg2 ...)

If the ENABLE_TESTING command has been run, this command adds a
test target to the current directory. If ENABLE_TESTING has not
been run, this command does nothing. The tests are run by the
testing subsystem by executing Exename with the specified argu‐
ments. Exename can be either an executable built by this
project or an arbitrary executable on the system (like tclsh).
The test will be run with the current working directory set to
the CMakeList.txt files corresponding directory in the binary
tree.

aux_source_directory
Find all source files in a directory.

aux_source_directory(<dir> <variable>)

Collects the names of all the source files in the specified
directory and stores the list in the <variable> provided. This
command is intended to be used by projects that use explicit
template instantiation. Template instantiation files can be
stored in a "Templates" subdirectory and collected automatically
using this command to avoid manually listing all instantiations.

It is tempting to use this command to avoid writing the list of
source files for a library or executable target. While this
seems to work, there is no way for CMake to generate a build
system that knows when a new source file has been added. Nor‐
mally the generated build system knows when it needs to rerun
CMake because the CMakeLists.txt file is modified to add a new
source. When the source is just added to the directory without
modifying this file, one would have to manually rerun CMake to
generate a build system incorporating the new file.

break Break from an enclosing foreach or while loop.

break()

Breaks from an enclosing foreach loop or while loop

build_command
Get the command line that will build this project.

build_command(<variable> <makecommand>)

Sets the given <variable> to a string containing the command
that will build this project from the root of the build tree
using the build tool given by <makecommand>. <makecommand>
should be msdev, nmake, make or one of the end user build tools.
This is useful for configuring testing systems.

cmake_minimum_required
Set the minimum required version of cmake for a project.

cmake_minimum_required(VERSION major[.minor[.patch]]
[FATAL_ERROR])

If the current version of CMake is lower than that required it
will stop processing the project and report an error. When a
version higher than 2.4 is specified the command implicitly
invokes

cmake_policy(VERSION major[.minor[.patch]])

which sets the cmake policy version level to the version speci‐
fied. When version 2.4 or lower is given the command implicitly
invokes

cmake_policy(VERSION 2.4)

which enables compatibility features for CMake 2.4 and lower.

The FATAL_ERROR option is accepted but ignored by CMake 2.6 and
higher. It should be specified so CMake versions 2.4 and lower
fail with an error instead of just a warning.

cmake_policy
Manage CMake Policy settings.

As CMake evolves it is sometimes necessary to change existing
behavior in order to fix bugs or improve implementations of
existing features. The CMake Policy mechanism is designed to
help keep existing projects building as new versions of CMake
introduce changes in behavior. Each new policy (behavioral
change) is given an identifier of the form "CMP<NNNN>" where
"<NNNN>" is an integer index. Documentation associated with
each policy describes the OLD and NEW behavior and the reason
the policy was introduced. Projects may set each policy to
select the desired behavior. When CMake needs to know which
behavior to use it checks for a setting specified by the
project. If no setting is available the OLD behavior is assumed
and a warning is produced requesting that the policy be set.

The cmake_policy command is used to set policies to OLD or NEW
behavior. While setting policies individually is supported, we
encourage projects to set policies based on CMake versions.

cmake_policy(VERSION major.minor[.patch])

Specify that the current CMake list file is written for the
given version of CMake. All policies introduced in the speci‐
fied version or earlier will be set to use NEW behavior. All
policies introduced after the specified version will be reset to
use OLD behavior with a warning. This effectively requests
behavior preferred as of a given CMake version and tells newer
CMake versions to warn about their new policies. The policy
version specified must be at least 2.4 or the command will
report an error. In order to get compatibility features sup‐
porting versions earlier than 2.4 see documentation of policy
CMP0001.

cmake_policy(SET CMP<NNNN> NEW)
cmake_policy(SET CMP<NNNN> OLD)

Tell CMake to use the OLD or NEW behavior for a given policy.
Projects depending on the old behavior of a given policy may
silence a policy warning by setting the policy state to OLD.
Alternatively one may fix the project to work with the new
behavior and set the policy state to NEW.

cmake_policy(GET CMP<NNNN> <variable>)

Check whether a given policy is set to OLD or NEW behavior. The
output variable value will be "OLD" or "NEW" if the policy is
set, and empty otherwise.

CMake keeps policy settings on a stack, so changes made by the
cmake_policy command affect only the top of the stack. A new
entry on the policy stack is managed automatically for each sub‐
directory to protect its parents and siblings. CMake also man‐
ages a new entry for scripts loaded by include() and find_pack‐
age() commands except when invoked with the NO_POLICY_SCOPE
option (see also policy CMP0011). The cmake_policy command pro‐
vides an interface to manage custom entries on the policy stack:

cmake_policy(PUSH)
cmake_policy(POP)

Each PUSH must have a matching POP to erase any changes. This
is useful to make temporary changes to policy settings.

Functions and macros record policy settings when they are cre‐
ated and use the pre-record policies when they are invoked. If
the function or macro implementation sets policies, the changes
automatically propagate up through callers until they reach the
closest nested policy stack entry.

configure_file
Copy a file to another location and modify its contents.

configure_file(InputFile OutputFile
[COPYONLY] [ESCAPE_QUOTES] [@ONLY])

The Input and Output files have to have full paths. This com‐
mand replaces any variables in the input file referenced as
${VAR} or @VAR@ with their values as determined by CMake. If a
variable is not defined, it will be replaced with nothing. If
COPYONLY is specified, then no variable expansion will take
place. If ESCAPE_QUOTES is specified then any substituted
quotes will be C-style escaped. The file will be configured
with the current values of CMake variables. If @ONLY is speci‐
fied, only variables of the form @VAR@ will be replaces and
${VAR} will be ignored. This is useful for configuring scripts
that use ${VAR}. Any occurrences of #cmakedefine VAR will be
replaced with either #define VAR or /* #undef VAR */ depending
on the setting of VAR in CMake

create_test_sourcelist
Create a test driver and source list for building test programs.

create_test_sourcelist(sourceListName driverName
test1 test2 test3
EXTRA_INCLUDE include.h
FUNCTION function)

A test driver is a program that links together many small tests
into a single executable. This is useful when building static
executables with large libraries to shrink the total required
size. The list of source files needed to build the test driver
will be in sourceListName. DriverName is the name of the test
driver program. The rest of the arguments consist of a list of
test source files, can be semicolon separated. Each test source
file should have a function in it that is the same name as the
file with no extension (foo.cxx should have int foo(int,
char*[]);) DriverName will be able to call each of the tests by
name on the command line. If EXTRA_INCLUDE is specified, then
the next argument is included into the generated file. If FUNC‐
TION is specified, then the next argument is taken as a function
name that is passed a pointer to ac and av. This can be used to
add extra command line processing to each test. The cmake vari‐
able CMAKE_TESTDRIVER_BEFORE_TESTMAIN can be set to have code
that will be placed directly before calling the test main func‐
tion. CMAKE_TESTDRIVER_AFTER_TESTMAIN can be set to have code
that will be placed directly after the call to the test main
function.

define_property
Define and document custom properties.

Define one property in a scope for use with the set_property and
get_property commands. This is primarily useful to associate
documentation with property names that may be retrieved with the
get_property command. The first argument determines the kind of
scope in which the property should be used. It must be one of
the following:

GLOBAL = associated with the global namespace
DIRECTORY = associated with one directory
TARGET = associated with one target
SOURCE = associated with one source file
TEST = associated with a test named with add_test command
VARIABLE = documents a CMake language variable
CACHED_VARIABLE = documents a CMake cache variable

Note that unlike set_property and get_property no actual scope
needs to be given; only the kind of scope is important.

The required PROPERTY option is immediately followed by the name
of the property being defined.

If the INHERITED option then the get_property command will chain
up to the next higher scope when the requested property is not
set in the scope given to the command. DIRECTORY scope chains
to GLOBAL. TARGET, SOURCE, and TEST chain to DIRECTORY.

The BRIEF_DOCS and FULL_DOCS options are followed by strings to
be associated with the property as its brief and full documenta‐
tion. Corresponding options to the get_property command will
retrieve the documentation.

else Starts the else portion of an if block.

else(expression)

See the if command.

elseif Starts the elseif portion of an if block.

elseif(expression)

See the if command.

enable_language
Enable a language (CXX/C/Fortran/etc)

enable_language(languageName [OPTIONAL] )

This command enables support for the named language in CMake.
This is the same as the project command but does not create any
of the extra variables that are created by the project command.
Example languages are CXX, C, Fortran.

If OPTIONAL is used, use the CMAKE_<languageName>_COMPILER_WORKS
variable to check whether the language has been enabled success‐
fully.

enable_testing
Enable testing for current directory and below.

enable_testing()

Enables testing for this directory and below. See also the
add_test command. Note that ctest expects to find a test file
in the build directory root. Therefore, this command should be
in the source directory root.

endforeach
Ends a list of commands in a FOREACH block.

endforeach(expression)

See the FOREACH command.

endfunction
Ends a list of commands in a function block.

endfunction(expression)

See the function command.

endif Ends a list of commands in an if block.

endif(expression)

See the if command.

endmacro
Ends a list of commands in a macro block.

endmacro(expression)

See the macro command.

endwhile
Ends a list of commands in a while block.

endwhile(expression)

See the while command.

execute_process
Execute one or more child processes.

execute_process(COMMAND <cmd1> [args1...]]
[COMMAND <cmd2> [args2...] [...]]
[WORKING_DIRECTORY <directory>]
[TIMEOUT <seconds>]
[RESULT_VARIABLE <variable>]
[OUTPUT_VARIABLE <variable>]
[ERROR_VARIABLE <variable>]
[INPUT_FILE <file>]
[OUTPUT_FILE <file>]
[ERROR_FILE <file>]
[OUTPUT_QUIET]
[ERROR_QUIET]
[OUTPUT_STRIP_TRAILING_WHITESPACE]
[ERROR_STRIP_TRAILING_WHITESPACE])

Runs the given sequence of one or more commands with the stan‐
dard output of each process piped to the standard input of the
next. A single standard error pipe is used for all processes.
If WORKING_DIRECTORY is given the named directory will be set as
the current working directory of the child processes. If TIME‐
OUT is given the child processes will be terminated if they do
not finish in the specified number of seconds (fractions are
allowed). If RESULT_VARIABLE is given the variable will be set
to contain the result of running the processes. This will be an
integer return code from the last child or a string describing
an error condition. If OUTPUT_VARIABLE or ERROR_VARIABLE are
given the variable named will be set with the contents of the
standard output and standard error pipes respectively. If the
same variable is named for both pipes their output will be
merged in the order produced. If INPUT_FILE, OUTPUT_FILE, or
ERROR_FILE is given the file named will be attached to the stan‐
dard input of the first process, standard output of the last
process, or standard error of all processes respectively. If
OUTPUT_QUIET or ERROR_QUIET is given then the standard output or
standard error results will be quietly ignored. If more than
one OUTPUT_* or ERROR_* option is given for the same pipe the
precedence is not specified. If no OUTPUT_* or ERROR_* options
are given the output will be shared with the corresponding pipes
of the CMake process itself.

The execute_process command is a newer more powerful version of
exec_program, but the old command has been kept for compatibil‐
ity.

export Export targets from the build tree for use by outside projects.

export(TARGETS [target1 [target2 [...]]] [NAMESPACE <namespace>]
[APPEND] FILE <filename>)

Create a file <filename> that may be included by outside
projects to import targets from the current project's build
tree. This is useful during cross-compiling to build utility
executables that can run on the host platform in one project and
then import them into another project being compiled for the
target platform. If the NAMESPACE option is given the <names‐
pace> string will be prepended to all target names written to
the file. If the APPEND option is given the generated code will
be appended to the file instead of overwriting it. If a library
target is included in the export but a target to which it links
is not included the behavior is unspecified.

The file created by this command is specific to the build tree
and should never be installed. See the install(EXPORT) command
to export targets from an installation tree.

file File manipulation command.

file(WRITE filename "message to write"... )
file(APPEND filename "message to write"... )
file(READ filename variable [LIMIT numBytes] [OFFSET offset] [HEX])
file(STRINGS filename variable [LIMIT_COUNT num]
[LIMIT_INPUT numBytes] [LIMIT_OUTPUT numBytes]
[LENGTH_MINIMUM numBytes] [LENGTH_MAXIMUM numBytes]
[NEWLINE_CONSUME] [REGEX regex]
[NO_HEX_CONVERSION])
file(GLOB variable [RELATIVE path] [globbing expressions]...)
file(GLOB_RECURSE variable [RELATIVE path]
[FOLLOW_SYMLINKS] [globbing expressions]...)
file(REMOVE [file1 ...])
file(REMOVE_RECURSE [file1 ...])
file(MAKE_DIRECTORY [directory1 directory2 ...])
file(RELATIVE_PATH variable directory file)
file(TO_CMAKE_PATH path result)
file(TO_NATIVE_PATH path result)
file(DOWNLOAD url file [TIMEOUT timeout] [STATUS status] [LOG log])

WRITE will write a message into a file called 'filename'. It
overwrites the file if it already exists, and creates the file
if it does not exist.

APPEND will write a message into a file same as WRITE, except it
will append it to the end of the file

READ will read the content of a file and store it into the vari‐
able. It will start at the given offset and read up to numBytes.
If the argument HEX is given, the binary data will be converted
to hexadecimal representation and this will be stored in the
variable.

STRINGS will parse a list of ASCII strings from a file and store
it in a variable. Binary data in the file are ignored. Carriage
return (CR) characters are ignored. It works also for Intel Hex
and Motorola S-record files, which are automatically converted
to binary format when reading them. Disable this using
NO_HEX_CONVERSION.

LIMIT_COUNT sets the maximum number of strings to return.
LIMIT_INPUT sets the maximum number of bytes to read from the
input file. LIMIT_OUTPUT sets the maximum number of bytes to
store in the output variable. LENGTH_MINIMUM sets the minimum
length of a string to return. Shorter strings are ignored.
LENGTH_MAXIMUM sets the maximum length of a string to return.
Longer strings are split into strings no longer than the maximum
length. NEWLINE_CONSUME allows newlines to be included in
strings instead of terminating them.

REGEX specifies a regular expression that a string must match to
be returned. Typical usage

file(STRINGS myfile.txt myfile)

stores a list in the variable "myfile" in which each item is a
line from the input file.

GLOB will generate a list of all files that match the globbing
expressions and store it into the variable. Globbing expressions
are similar to regular expressions, but much simpler. If RELA‐
TIVE flag is specified for an expression, the results will be
returned as a relative path to the given path.

Examples of globbing expressions include:

*.cxx - match all files with extension cxx
*.vt? - match all files with extension vta,...,vtz
f[3-5].txt - match files f3.txt, f4.txt, f5.txt

GLOB_RECURSE will generate a list similar to the regular GLOB,
except it will traverse all the subdirectories of the matched
directory and match the files. Subdirectories that are symlinks
are only traversed if FOLLOW_SYMLINKS is given or cmake policy
CMP0009 is not set to NEW. See cmake --help-policy CMP0009 for
more information.

Examples of recursive globbing include:

/dir/*.py - match all python files in /dir and subdirectories

MAKE_DIRECTORY will create the given directories, also if their
parent directories don't exist yet

REMOVE will remove the given files, also in subdirectories

REMOVE_RECURSE will remove the given files and directories, also
non-empty directories

RELATIVE_PATH will determine relative path from directory to the
given file.

TO_CMAKE_PATH will convert path into a cmake style path with
unix /. The input can be a single path or a system path like
"$ENV{PATH}". Note the double quotes around the ENV call
TO_CMAKE_PATH only takes one argument.

TO_NATIVE_PATH works just like TO_CMAKE_PATH, but will convert
from a cmake style path into the native path style \ for win‐
dows and / for UNIX.

DOWNLOAD will download the given URL to the given file. If LOG
var is specified a log of the download will be put in var. If
STATUS var is specified the status of the operation will be put
in var. The status is returned in a list of length 2. The first
element is the numeric return value for the operation, and the
second element is a string value for the error. A 0 numeric
error means no error in the operation. If TIMEOUT time is speci‐
fied, the operation will timeout after time seconds, time can be
specified as a float.

find_file
Find the full path to a file.

find_path(<VAR> name1 [path1 path2 ...])

This is the short-hand signature for the command that is suffi‐
cient in many cases. It is the same as find_path(<VAR> name1
[PATHS path1 path2 ...])

find_path(
<VAR>
name | NAMES name1 [name2 ...]
[HINTS path1 [path2 ... ENV var]]
[PATHS path1 [path2 ... ENV var]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[DOC "cache documentation string"]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH]
)

This command is used to find a full path to named file. A cache
entry named by <VAR> is created to store the result of this com‐
mand. If the full path to a file is found the result is stored
in the variable and the search will not be repeated unless the
variable is cleared. If nothing is found, the result will be
<VAR>-NOTFOUND, and the search will be attempted again the next
time find_path is invoked with the same variable. The name of
the full path to a file that is searched for is specified by the
names listed after the NAMES argument. Additional search loca‐
tions can be specified after the PATHS argument. If ENV var is
found in the HINTS or PATHS section the environment variable var
will be read and converted from a system environment variable to
a cmake style list of paths. For example ENV PATH would be a
way to list the system path variable. The argument after DOC
will be used for the documentation string in the cache.
PATH_SUFFIXES specifies additional subdirectories to check below
each search path.

If NO_DEFAULT_PATH is specified, then no additional paths are
added to the search. If NO_DEFAULT_PATH is not specified, the
search process is as follows:

1. Search paths specified in cmake-specific cache variables.
These are intended to be used on the command line with a
-DVAR=value. This can be skipped if NO_CMAKE_PATH is passed.

<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH

2. Search paths specified in cmake-specific environment vari‐
ables. These are intended to be set in the user's shell config‐
uration. This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is
passed.

<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH

3. Search the paths specified by the HINTS option. These should
be paths computed by system introspection, such as a hint pro‐
vided by the location of another item already found. Hard-coded
guesses should be specified with the PATHS option.

4. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.

PATH
INCLUDE

5. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.

<prefix>/include for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_INCLUDE_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH

6. Search the paths specified by the PATHS option or in the
short-hand version of the command. These are typically
hard-coded guesses.

On Darwin or systems supporting OS X Frameworks, the cmake vari‐
able CMAKE_FIND_FRAMEWORK can be set to empty or one of the
following:

"FIRST" - Try to find frameworks before standard
libraries or headers. This is the default on Darwin.
"LAST" - Try to find frameworks after standard
libraries or headers.
"ONLY" - Only try to find frameworks.
"NEVER". - Never try to find frameworks.

On Darwin or systems supporting OS X Application Bundles, the
cmake variable CMAKE_FIND_APPBUNDLE can be set to empty or one
of the following:

"FIRST" - Try to find application bundles before standard
programs. This is the default on Darwin.
"LAST" - Try to find application bundles after standard
programs.
"ONLY" - Only try to find application bundles.
"NEVER". - Never try to find application bundles.

The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories.
This effectively "re-roots" the entire search under given loca‐
tions. By default it is empty. It is especially useful when
cross-compiling to point to the root directory of the target
environment and CMake will search there too. By default at first
the directories listed in CMAKE_FIND_ROOT_PATH and then the
non-rooted directories will be searched. The default behavior
can be adjusted by setting CMAKE_FIND_ROOT_PATH_MODE_INCLUDE.
This behavior can be manually overridden on a per-call basis. By
using CMAKE_FIND_ROOT_PATH_BOTH the search order will be as
described above. If NO_CMAKE_FIND_ROOT_PATH is used then
CMAKE_FIND_ROOT_PATH will not be used. If
ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted direc‐
tories will be searched.

The default search order is designed to be most-specific to
least-specific for common use cases. Projects may override the
order by simply calling the command multiple times and using the
NO_* options:

find_path(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_path(<VAR> NAMES name)

Once one of the calls succeeds the result variable will be set
and stored in the cache so that no call will search again.

find_library
Find a library.

find_library(<VAR> name1 [path1 path2 ...])

This is the short-hand signature for the command that is suffi‐
cient in many cases. It is the same as find_library(<VAR> name1
[PATHS path1 path2 ...])

find_library(
<VAR>
name | NAMES name1 [name2 ...]
[HINTS path1 [path2 ... ENV var]]
[PATHS path1 [path2 ... ENV var]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[DOC "cache documentation string"]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH]
)

This command is used to find a library. A cache entry named by
<VAR> is created to store the result of this command. If the
library is found the result is stored in the variable and the
search will not be repeated unless the variable is cleared. If
nothing is found, the result will be <VAR>-NOTFOUND, and the
search will be attempted again the next time find_library is
invoked with the same variable. The name of the library that is
searched for is specified by the names listed after the NAMES
argument. Additional search locations can be specified after
the PATHS argument. If ENV var is found in the HINTS or PATHS
section the environment variable var will be read and converted
from a system environment variable to a cmake style list of
paths. For example ENV PATH would be a way to list the system
path variable. The argument after DOC will be used for the docu‐
mentation string in the cache. PATH_SUFFIXES specifies addi‐
tional subdirectories to check below each search path.

If NO_DEFAULT_PATH is specified, then no additional paths are
added to the search. If NO_DEFAULT_PATH is not specified, the
search process is as follows:

1. Search paths specified in cmake-specific cache variables.
These are intended to be used on the command line with a
-DVAR=value. This can be skipped if NO_CMAKE_PATH is passed.

<prefix>/lib for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_LIBRARY_PATH
CMAKE_FRAMEWORK_PATH

2. Search paths specified in cmake-specific environment vari‐
ables. These are intended to be set in the user's shell config‐
uration. This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is
passed.

<prefix>/lib for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_LIBRARY_PATH
CMAKE_FRAMEWORK_PATH

4. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.

PATH
LIB

5. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.

<prefix>/lib for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_LIBRARY_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH

6. Search the paths specified by the PATHS option or in the
short-hand version of the command. These are typically
hard-coded guesses.

On Darwin or systems supporting OS X Frameworks, the cmake vari‐
able CMAKE_FIND_FRAMEWORK can be set to empty or one of the
following:

On Darwin or systems supporting OS X Application Bundles, the
cmake variable CMAKE_FIND_APPBUNDLE can be set to empty or one
of the following:

The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories.
This effectively "re-roots" the entire search under given loca‐
tions. By default it is empty. It is especially useful when
cross-compiling to point to the root directory of the target
environment and CMake will search there too. By default at first
the directories listed in CMAKE_FIND_ROOT_PATH and then the
non-rooted directories will be searched. The default behavior
can be adjusted by setting CMAKE_FIND_ROOT_PATH_MODE_LIBRARY.
This behavior can be manually overridden on a per-call basis. By
using CMAKE_FIND_ROOT_PATH_BOTH the search order will be as
described above. If NO_CMAKE_FIND_ROOT_PATH is used then
CMAKE_FIND_ROOT_PATH will not be used. If
ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted direc‐
tories will be searched.

find_library(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_library(<VAR> NAMES name)

Once one of the calls succeeds the result variable will be set
and stored in the cache so that no call will search again.

If the library found is a framework, then VAR will be set to the
full path to the framework <fullPath>/A.framework. When a full
path to a framework is used as a library, CMake will use a
-framework A, and a -F<fullPath> to link the framework to the
target.

find_package
Load settings for an external project.

find_package(<package> [version] [EXACT] [QUIET]
[[REQUIRED|COMPONENTS] [components...]]
[NO_POLICY_SCOPE])

Finds and loads settings from an external project. <pack‐
age>_FOUND will be set to indicate whether the package was
found. When the package is found package-specific information
is provided through variables documented by the package itself.
The QUIET option disables messages if the package cannot be
found. The REQUIRED option stops processing with an error mes‐
sage if the package cannot be found. A package-specific list of
components may be listed after the REQUIRED option or after the
COMPONENTS option if no REQUIRED option is given. The [version]
argument requests a version with which the package found should
be compatible (format is major[.minor[.patch[.tweak]]]). The
EXACT option requests that the version be matched exactly. If
no [version] is given to a recursive invocation inside a
find-module, the [version] and EXACT arguments are forwarded
automatically from the outer call. Version support is currently
provided only on a package-by-package basis (details below).

User code should generally look for packages using the above
simple signature. The remainder of this command documentation
specifies the full command signature and details of the search
process. Project maintainers wishing to provide a package to be
found by this command are encouraged to read on.

The command has two modes by which it searches for packages:
"Module" mode and "Config" mode. Module mode is available when
the command is invoked with the above reduced signature. CMake
searches for a file called "Find<package>.cmake" in the
CMAKE_MODULE_PATH followed by the CMake installation. If the
file is found, it is read and processed by CMake. It is respon‐
sible for finding the package, checking the version, and produc‐
ing any needed messages. Many find-modules provide limited or
no support for versioning; check the module documentation. If
no module is found the command proceeds to Config mode.

The complete Config mode command signature is:

find_package(<package> [version] [EXACT] [QUIET]
[[REQUIRED|COMPONENTS] [components...]] [NO_MODULE]
[NO_POLICY_SCOPE]
[NAMES name1 [name2 ...]]
[CONFIGS config1 [config2 ...]]
[HINTS path1 [path2 ... ]]
[PATHS path1 [path2 ... ]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_BUILDS_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH])

The NO_MODULE option may be used to skip Module mode explicitly.
It is also implied by use of options not specified in the
reduced signature.

Config mode attempts to locate a configuration file provided by
the package to be found. A cache entry called <package>_DIR is
created to hold the directory containing the file. By default
the command searches for a package with the name <package>. If
the NAMES option is given the names following it are used
instead of <package>. The command searches for a file called
"<name>Config.cmake" or "<lower-case-name>-config.cmake" for
each name specified. A replacement set of possible configura‐
tion file names may be given using the CONFIGS option. The
search procedure is specified below. Once found, the configura‐
tion file is read and processed by CMake. Since the file is
provided by the package it already knows the location of package
contents. The full path to the configuration file is stored in
the cmake variable <package>_CONFIG.

If the package configuration file cannot be found CMake will
generate an error describing the problem unless the QUIET argu‐
ment is specified. If REQUIRED is specified and the package is
not found a fatal error is generated and the configure step
stops executing. If <package>_DIR has been set to a directory
not containing a configuration file CMake will ignore it and
search from scratch.

When the [version] argument is given Config mode will only find
a version of the package that claims compatibility with the
requested version (format is major[.minor[.patch[.tweak]]]). If
the EXACT option is given only a version of the package claiming
an exact match of the requested version may be found. CMake
does not establish any convention for the meaning of version
numbers. Package version numbers are checked by "version" files
provided by the packages themselves. For a candidate package
confguration file "<config-file>.cmake" the corresponding ver‐
sion file is located next to it and named either "<con‐
fig-file>-version.cmake" or "<config-file>Version.cmake". If no
such version file is available then the configuration file is
assumed to not be compatible with any requested version. When a
version file is found it is loaded to check the requested ver‐
sion number. The version file is loaded in a nested scope in
which the following variables have been defined:

PACKAGE_FIND_NAME = the <package> name
PACKAGE_FIND_VERSION = full requested version string
PACKAGE_FIND_VERSION_MAJOR = major version if requested, else 0
PACKAGE_FIND_VERSION_MINOR = minor version if requested, else 0
PACKAGE_FIND_VERSION_PATCH = patch version if requested, else 0
PACKAGE_FIND_VERSION_TWEAK = tweak version if requested, else 0
PACKAGE_FIND_VERSION_COUNT = number of version components, 0 to 4

The version file checks whether it satisfies the requested ver‐
sion and sets these variables:

PACKAGE_VERSION = full provided version string
PACKAGE_VERSION_EXACT = true if version is exact match
PACKAGE_VERSION_COMPATIBLE = true if version is compatible
PACKAGE_VERSION_UNSUITABLE = true if unsuitable as any version

These variables are checked by the find_package command to
determine whether the configuration file provides an acceptable
version. They are not available after the find_package call
returns. If the version is acceptable the following variables
are set:

<package>_VERSION = full provided version string
<package>_VERSION_MAJOR = major version if provided, else 0
<package>_VERSION_MINOR = minor version if provided, else 0
<package>_VERSION_PATCH = patch version if provided, else 0
<package>_VERSION_TWEAK = tweak version if provided, else 0
<package>_VERSION_COUNT = number of version components, 0 to 4

and the corresponding package configuration file is loaded.
When multiple package configuration files are available whose
version files claim compatibility with the version requested it
is unspecified which one is chosen. No attempt is made to
choose a highest or closest version number.

Config mode provides an elaborate interface and search proce‐
dure. Much of the interface is provided for completeness and
for use internally by find-modules loaded by Module mode. Most
user code should simply call

find_package(<package> [major[.minor]] [EXACT] [REQUIRED|QUIET])

in order to find a package. Package maintainers providing CMake
package configuration files are encouraged to name and install
them such that the procedure outlined below will find them with‐
out requiring use of additional options.

CMake constructs a set of possible installation prefixes for the
package. Under each prefix several directories are searched for
a configuration file. The tables below show the directories
searched. Each entry is meant for installation trees following
Windows (W), UNIX (U), or Apple (A) conventions.

On systems supporting OS X Frameworks and Application Bundles
the following directories are searched for frameworks or bundles
containing a configuration file:

<prefix>/<name>.framework/Resources/ (A)
<prefix>/<name>.framework/Resources/CMake/ (A)
<prefix>/<name>.framework/Versions/*/Resources/ (A)
<prefix>/<name>.framework/Versions/*/Resources/CMake/ (A)
<prefix>/<name>.app/Contents/Resources/ (A)
<prefix>/<name>.app/Contents/Resources/CMake/ (A)

In all cases the <name> is treated as case-insensitive and cor‐
responds to any of the names specified (<package> or names given
by NAMES). If PATH_SUFFIXES is specified the suffixes are
appended to each (W) or (U) directory entry one-by-one.

This set of directories is intended to work in cooperation with
projects that provide configuration files in their installation
trees. Directories above marked with (W) are intended for
installations on Windows where the prefix may point at the top
of an application's installation directory. Those marked with
(U) are intended for installations on UNIX platforms where the
prefix is shared by multiple packages. This is merely a conven‐
tion, so all (W) and (U) directories are still searched on all
platforms. Directories marked with (A) are intended for instal‐
lations on Apple platforms. The cmake variables
CMAKE_FIND_FRAMEWORK and CMAKE_FIND_APPBUNDLE determine the
order of preference as specified below.

The set of installation prefixes is constructed using the fol‐
lowing steps. If NO_DEFAULT_PATH is specified all NO_* options
are enabled.

1. Search paths specified in cmake-specific cache variables.
These are intended to be used on the command line with a
-DVAR=value. This can be skipped if NO_CMAKE_PATH is passed.

CMAKE_PREFIX_PATH
CMAKE_FRAMEWORK_PATH
CMAKE_APPBUNDLE_PATH

2. Search paths specified in cmake-specific environment vari‐
ables. These are intended to be set in the user's shell config‐
uration. This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is
passed.

CMAKE_PREFIX_PATH
CMAKE_FRAMEWORK_PATH
CMAKE_APPBUNDLE_PATH

3. Search paths specified by the HINTS option. These should be
paths computed by system introspection, such as a hint provided
by the location of another item already found. Hard-coded
guesses should be specified with the PATHS option.

4. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is passed. Path entries
ending in "/bin" or "/sbin" are automatically converted to their
parent directories.

PATH

5. Search project build trees recently configured in a CMake
GUI. This can be skipped if NO_CMAKE_BUILDS_PATH is passed. It
is intended for the case when a user is building multiple depen‐
dent projects one after another.

6. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.

CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH
CMAKE_SYSTEM_APPBUNDLE_PATH

7. Search paths specified by the PATHS option. These are typi‐
cally hard-coded guesses.

On Darwin or systems supporting OS X Frameworks, the cmake vari‐
able CMAKE_FIND_FRAMEWORK can be set to empty or one of the
following:

On Darwin or systems supporting OS X Application Bundles, the
cmake variable CMAKE_FIND_APPBUNDLE can be set to empty or one
of the following:

The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories.
This effectively "re-roots" the entire search under given loca‐
tions. By default it is empty. It is especially useful when
cross-compiling to point to the root directory of the target
environment and CMake will search there too. By default at first
the directories listed in CMAKE_FIND_ROOT_PATH and then the
non-rooted directories will be searched. The default behavior
can be adjusted by setting CMAKE_FIND_ROOT_PATH_MODE_PACKAGE.
This behavior can be manually overridden on a per-call basis. By
using CMAKE_FIND_ROOT_PATH_BOTH the search order will be as
described above. If NO_CMAKE_FIND_ROOT_PATH is used then
CMAKE_FIND_ROOT_PATH will not be used. If
ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted direc‐
tories will be searched.

find_package(<package> PATHS paths... NO_DEFAULT_PATH)
find_package(<package>)

Once one of the calls succeeds the result variable will be set
and stored in the cache so that no call will search again.

See the cmake_policy() command documentation for discussion of
the NO_POLICY_SCOPE option.

find_path
Find the directory containing a file.

find_path(<VAR> name1 [path1 path2 ...])

This is the short-hand signature for the command that is suffi‐
cient in many cases. It is the same as find_path(<VAR> name1
[PATHS path1 path2 ...])

This command is used to find a directory containing the named
file. A cache entry named by <VAR> is created to store the
result of this command. If the file in a directory is found the
result is stored in the variable and the search will not be
repeated unless the variable is cleared. If nothing is found,
the result will be <VAR>-NOTFOUND, and the search will be
attempted again the next time find_path is invoked with the same
variable. The name of the file in a directory that is searched
for is specified by the names listed after the NAMES argument.
Additional search locations can be specified after the PATHS
argument. If ENV var is found in the HINTS or PATHS section the
environment variable var will be read and converted from a sys‐
tem environment variable to a cmake style list of paths. For
example ENV PATH would be a way to list the system path vari‐
able. The argument after DOC will be used for the documentation
string in the cache. PATH_SUFFIXES specifies additional subdi‐
rectories to check below each search path.

If NO_DEFAULT_PATH is specified, then no additional paths are
added to the search. If NO_DEFAULT_PATH is not specified, the
search process is as follows:

1. Search paths specified in cmake-specific cache variables.
These are intended to be used on the command line with a
-DVAR=value. This can be skipped if NO_CMAKE_PATH is passed.

<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH

2. Search paths specified in cmake-specific environment vari‐
ables. These are intended to be set in the user's shell config‐
uration. This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is
passed.

<prefix>/include for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_INCLUDE_PATH
CMAKE_FRAMEWORK_PATH

4. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.

PATH
INCLUDE

5. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.

<prefix>/include for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_INCLUDE_PATH
CMAKE_SYSTEM_FRAMEWORK_PATH

6. Search the paths specified by the PATHS option or in the
short-hand version of the command. These are typically
hard-coded guesses.

On Darwin or systems supporting OS X Frameworks, the cmake vari‐
able CMAKE_FIND_FRAMEWORK can be set to empty or one of the
following:

On Darwin or systems supporting OS X Application Bundles, the
cmake variable CMAKE_FIND_APPBUNDLE can be set to empty or one
of the following:

find_path(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_path(<VAR> NAMES name)

Once one of the calls succeeds the result variable will be set
and stored in the cache so that no call will search again.

When searching for frameworks, if the file is specified as
A/b.h, then the framework search will look for A.framework/Head‐
ers/b.h. If that is found the path will be set to the path to
the framework. CMake will convert this to the correct -F option
to include the file.

find_program
Find an executable program.

find_program(<VAR> name1 [path1 path2 ...])

This is the short-hand signature for the command that is suffi‐
cient in many cases. It is the same as find_program(<VAR> name1
[PATHS path1 path2 ...])

find_program(
<VAR>
name | NAMES name1 [name2 ...]
[HINTS path1 [path2 ... ENV var]]
[PATHS path1 [path2 ... ENV var]]
[PATH_SUFFIXES suffix1 [suffix2 ...]]
[DOC "cache documentation string"]
[NO_DEFAULT_PATH]
[NO_CMAKE_ENVIRONMENT_PATH]
[NO_CMAKE_PATH]
[NO_SYSTEM_ENVIRONMENT_PATH]
[NO_CMAKE_SYSTEM_PATH]
[CMAKE_FIND_ROOT_PATH_BOTH |
ONLY_CMAKE_FIND_ROOT_PATH |
NO_CMAKE_FIND_ROOT_PATH]
)

This command is used to find a program. A cache entry named by
<VAR> is created to store the result of this command. If the
program is found the result is stored in the variable and the
search will not be repeated unless the variable is cleared. If
nothing is found, the result will be <VAR>-NOTFOUND, and the
search will be attempted again the next time find_program is
invoked with the same variable. The name of the program that is
searched for is specified by the names listed after the NAMES
argument. Additional search locations can be specified after
the PATHS argument. If ENV var is found in the HINTS or PATHS
section the environment variable var will be read and converted
from a system environment variable to a cmake style list of
paths. For example ENV PATH would be a way to list the system
path variable. The argument after DOC will be used for the docu‐
mentation string in the cache. PATH_SUFFIXES specifies addi‐
tional subdirectories to check below each search path.

If NO_DEFAULT_PATH is specified, then no additional paths are
added to the search. If NO_DEFAULT_PATH is not specified, the
search process is as follows:

1. Search paths specified in cmake-specific cache variables.
These are intended to be used on the command line with a
-DVAR=value. This can be skipped if NO_CMAKE_PATH is passed.

<prefix>/[s]bin for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_PROGRAM_PATH
CMAKE_APPBUNDLE_PATH

2. Search paths specified in cmake-specific environment vari‐
ables. These are intended to be set in the user's shell config‐
uration. This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is
passed.

<prefix>/[s]bin for each <prefix> in CMAKE_PREFIX_PATH
CMAKE_PROGRAM_PATH
CMAKE_APPBUNDLE_PATH

4. Search the standard system environment variables. This can be
skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.

PATH

5. Search cmake variables defined in the Platform files for the
current system. This can be skipped if NO_CMAKE_SYSTEM_PATH is
passed.

<prefix>/[s]bin for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
CMAKE_SYSTEM_PROGRAM_PATH
CMAKE_SYSTEM_APPBUNDLE_PATH

6. Search the paths specified by the PATHS option or in the
short-hand version of the command. These are typically
hard-coded guesses.

On Darwin or systems supporting OS X Frameworks, the cmake vari‐
able CMAKE_FIND_FRAMEWORK can be set to empty or one of the
following:

On Darwin or systems supporting OS X Application Bundles, the
cmake variable CMAKE_FIND_APPBUNDLE can be set to empty or one
of the following:

The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more
directories to be prepended to all other search directories.
This effectively "re-roots" the entire search under given loca‐
tions. By default it is empty. It is especially useful when
cross-compiling to point to the root directory of the target
environment and CMake will search there too. By default at first
the directories listed in CMAKE_FIND_ROOT_PATH and then the
non-rooted directories will be searched. The default behavior
can be adjusted by setting CMAKE_FIND_ROOT_PATH_MODE_PROGRAM.
This behavior can be manually overridden on a per-call basis. By
using CMAKE_FIND_ROOT_PATH_BOTH the search order will be as
described above. If NO_CMAKE_FIND_ROOT_PATH is used then
CMAKE_FIND_ROOT_PATH will not be used. If
ONLY_CMAKE_FIND_ROOT_PATH is used then only the re-rooted direc‐
tories will be searched.

find_program(<VAR> NAMES name PATHS paths... NO_DEFAULT_PATH)
find_program(<VAR> NAMES name)

Once one of the calls succeeds the result variable will be set
and stored in the cache so that no call will search again.

fltk_wrap_ui
Create FLTK user interfaces Wrappers.

fltk_wrap_ui(resultingLibraryName source1
source2 ... sourceN )

Produce .h and .cxx files for all the .fl and .fld files listed.
The resulting .h and .cxx files will be added to a variable
named resultingLibraryName_FLTK_UI_SRCS which should be added to
your library.

foreach
Evaluate a group of commands for each value in a list.

foreach(loop_var arg1 arg2 ...)
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endforeach(loop_var)
foreach(loop_var RANGE total)
foreach(loop_var RANGE start stop [step])

All commands between foreach and the matching endforeach are
recorded without being invoked. Once the endforeach is evalu‐
ated, the recorded list of commands is invoked once for each
argument listed in the original foreach command. Before each
iteration of the loop "${loop_var}" will be set as a variable
with the current value in the list.

Foreach can also iterate over a generated range of numbers.
There are three types of this iteration:

* When specifying single number, the range will have elements 0
to "total".

* When specifying two numbers, the range will have elements from
the first number to the second number.

* The third optional number is the increment used to iterate
from the first number to the second number.

function
Start recording a function for later invocation as a command.

function(<name> [arg1 [arg2 [arg3 ...]]])
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endfunction(<name>)

Define a function named <name> that takes arguments named arg1
arg2 arg3 (...). Commands listed after function, but before the
matching endfunction, are not invoked until the function is
invoked. When it is invoked, the commands recorded in the func‐
tion are first modified by replacing formal parameters (${arg1})
with the arguments passed, and then invoked as normal commands.
In addition to referencing the formal parameters you can refer‐
ence the variable ARGC which will be set to the number of argu‐
ments passed into the function as well as ARGV0 ARGV1 ARGV2 ...
which will have the actual values of the arguments passed in.
This facilitates creating functions with optional arguments.
Additionally ARGV holds the list of all arguments given to the
function and ARGN holds the list of argument pass the last
expected argument.

See the cmake_policy() command documentation for the behavior of
policies inside functions.

get_cmake_property
Get a property of the CMake instance.

get_cmake_property(VAR property)

Get a property from the CMake instance. The value of the prop‐
erty is stored in the variable VAR. If the property is not
found, CMake will report an error. Some supported properties
include: VARIABLES, CACHE_VARIABLES, COMMANDS, MACROS, and COM‐
PONENTS.

get_directory_property
Get a property of the directory.

get_directory_property(VAR [DIRECTORY dir] property)

Get a property from the Directory. The value of the property is
stored in the variable VAR. If the property is not found, CMake
will report an error. The properties include: VARIABLES,
CACHE_VARIABLES, COMMANDS, MACROS, INCLUDE_DIRECTORIES,
LINK_DIRECTORIES, DEFINITIONS, INCLUDE_REGULAR_EXPRESSION, LIST‐
FILE_STACK, PARENT_DIRECTORY, and DEFINITION varname. If the
DIRECTORY argument is provided then the property of the provided
directory will be retrieved instead of the current directory.
You can only get properties of a directory during or after it
has been traversed by cmake.

get_filename_component
Get a specific component of a full filename.

Set VarName to be the path (PATH), file name (NAME), file exten‐
sion (EXT), file name without extension (NAME_WE) of FileName,
the full path (ABSOLUTE), or the full path with all symlinks
resolved (REALPATH). Note that the path is converted to Unix
slashes format and has no trailing slashes. The longest file
extension is always considered. If the optional CACHE argument
is specified, the result variable is added to the cache.

get_filename_component(VarName FileName
PROGRAM [PROGRAM_ARGS ArgVar]
[CACHE])

The program in FileName will be found in the system search path
or left as a full path. If PROGRAM_ARGS is present with PRO‐
GRAM, then any command-line arguments present in the FileName
string are split from the program name and stored in ArgVar.
This is used to separate a program name from its arguments in a
command line string.

get_property
Get a property.

Get one property from one object in a scope. The first argument
specifies the variable in which to store the result. The second
argument determines the scope from which to get the property.
It must be one of the following:

GLOBAL scope is unique and does not accept a name.

DIRECTORY scope defaults to the current directory but another
directory (already processed by CMake) may be named by full or
relative path.

TARGET scope must name one existing target.

SOURCE scope must name one source file.

TEST scope must name one existing test.

VARIABLE scope is unique and does not accept a name.

The required PROPERTY option is immediately followed by the name
of the property to get. If the property is not set an empty
value is returned. If the SET option is given the variable is
set to a boolean value indicating whether the property has been
set. If the DEFINED option is given the variable is set to a
boolean value indicating whether the property has been defined
such as with define_property. If BRIEF_DOCS or FULL_DOCS is
given then the variable is set to a string containing documenta‐
tion for the requested property. If documentation is requested
for a property that has not been defined NOTFOUND is returned.

get_source_file_property
Get a property for a source file.

get_source_file_property(VAR file property)

Get a property from a source file. The value of the property is
stored in the variable VAR. If the property is not found, VAR
will be set to "NOTFOUND". Use set_source_files_properties to
set property values. Source file properties usually control how
the file is built. One property that is always there is LOCATION

get_target_property
Get a property from a target.

get_target_property(VAR target property)

Get a property from a target. The value of the property is
stored in the variable VAR. If the property is not found, VAR
will be set to "NOTFOUND". Use set_target_properties to set
property values. Properties are usually used to control how a
target is built, but some query the target instead. This com‐
mand can get properties for any target so far created. The tar‐
gets do not need to be in the current CMakeLists.txt file.

get_test_property
Get a property of the test.

get_test_property(test VAR property)

Get a property from the Test. The value of the property is
stored in the variable VAR. If the property is not found, CMake
will report an error. For a list of standard properties you can
type cmake --help-property-list

if Conditionally execute a group of commands.

if(expression)
# then section.
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
elseif(expression2)
# elseif section.
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
else(expression)
# else section.
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endif(expression)

Evaluates the given expression. If the result is true, the com‐
mands in the THEN section are invoked. Otherwise, the commands
in the else section are invoked. The elseif and else sections
are optional. You may have multiple elseif clauses. Note that
the same expression must be given to if, and endif. Long
expressions can be used and the order or precedence is that the
EXISTS, COMMAND, and DEFINED operators will be evaluated first.
Then any EQUAL, LESS, GREATER, STRLESS, STRGREATER, STREQUAL,
MATCHES will be evaluated. Then NOT operators and finally AND,
OR operators will be evaluated. Possible expressions are:

if(variable)

True if the variable's value is not empty, 0, N, NO, OFF, FALSE,
NOTFOUND, or <variable>-NOTFOUND.

if(NOT variable)

True if the variable's value is empty, 0, N, NO, OFF, FALSE,
NOTFOUND, or <variable>-NOTFOUND.

if(variable1 AND variable2)

True if both variables would be considered true individually.

if(variable1 OR variable2)

True if either variable would be considered true individually.

if(COMMAND command-name)

True if the given name is a command, macro or function that can
be invoked.

if(POLICY policy-id)

True if the given name is an existing policy (of the form
CMP<NNNN>).

if(TARGET target-name)

True if the given name is an existing target, built or imported.

if(EXISTS file-name)
if(EXISTS directory-name)

True if the named file or directory exists. Behavior is
well-defined only for full paths.

if(file1 IS_NEWER_THAN file2)

True if file1 is newer than file2 or if one of the two files
doesn't exist. Behavior is well-defined only for full paths.

if(IS_DIRECTORY directory-name)

True if the given name is a directory. Behavior is well-defined
only for full paths.

if(IS_ABSOLUTE path)

True if the given path is an absolute path.

if(variable MATCHES regex)
if(string MATCHES regex)

True if the given string or variable's value matches the given
regular expression.

if(variable LESS number)
if(string LESS number)
if(variable GREATER number)
if(string GREATER number)
if(variable EQUAL number)
if(string EQUAL number)

True if the given string or variable's value is a valid number
and the inequality or equality is true.

if(variable STRLESS string)
if(string STRLESS string)
if(variable STRGREATER string)
if(string STRGREATER string)
if(variable STREQUAL string)
if(string STREQUAL string)

True if the given string or variable's value is lexicographi‐
cally less (or greater, or equal) than the string on the right.

if(version1 VERSION_LESS version2)
if(version1 VERSION_EQUAL version2)
if(version1 VERSION_GREATER version2)

Component-wise integer version number comparison (version format
is major[.minor[.patch[.tweak]]]).

if(DEFINED variable)

True if the given variable is defined. It does not matter if the
variable is true or false just if it has been set.

include
Read CMake listfile code from the given file.

include(<file|module> [OPTIONAL] [RESULT_VARIABLE <VAR>]
[NO_POLICY_SCOPE])

Reads CMake listfile code from the given file. Commands in the
file are processed immediately as if they were written in place
of the include command. If OPTIONAL is present, then no error
is raised if the file does not exist. If RESULT_VARIABLE is
given the variable will be set to the full filename which has
been included or NOTFOUND if it failed.

If a module is specified instead of a file, the file with name
<modulename>.cmake is searched in the CMAKE_MODULE_PATH.

See the cmake_policy() command documentation for discussion of
the NO_POLICY_SCOPE option.

include_directories
Add include directories to the build.

include_directories([AFTER|BEFORE] [SYSTEM] dir1 dir2 ...)

Add the given directories to those searched by the compiler for
include files. By default the directories are appended onto the
current list of directories. This default behavior can be
changed by setting CMAKE_include_directories_BEFORE to ON. By
using BEFORE or AFTER you can select between appending and
prepending, independent from the default. If the SYSTEM option
is given the compiler will be told that the directories are
meant as system include directories on some platforms.

include_external_msproject
Include an external Microsoft project file in a workspace.

include_external_msproject(projectname location
dep1 dep2 ...)

Includes an external Microsoft project in the generated
workspace file. Currently does nothing on UNIX. This will cre‐
ate a target named INCLUDE_EXTERNAL_MSPROJECT_[projectname].
This can be used in the add_dependencies command to make things
depend on the external project.

include_regular_expression
Set the regular expression used for dependency checking.

include_regular_expression(regex_match [regex_complain])

Set the regular expressions used in dependency checking. Only
files matching regex_match will be traced as dependencies. Only
files matching regex_complain will generate warnings if they
cannot be found (standard header paths are not searched). The
defaults are:

regex_match = "^.*$" (match everything)
regex_complain = "^$" (match empty string only)

install
Specify rules to run at install time.

This command generates installation rules for a project. Rules
specified by calls to this command within a source directory are
executed in order during installation. The order across direc‐
tories is not defined.

There are multiple signatures for this command. Some of them
define installation properties for files and targets. Proper‐
ties common to multiple signatures are covered here but they are
valid only for signatures that specify them.

DESTINATION arguments specify the directory on disk to which a
file will be installed. If a full path (with a leading slash or
drive letter) is given it is used directly. If a relative path
is given it is interpreted relative to the value of
CMAKE_INSTALL_PREFIX.

PERMISSIONS arguments specify permissions for installed files.
Valid permissions are OWNER_READ, OWNER_WRITE, OWNER_EXECUTE,
GROUP_READ, GROUP_WRITE, GROUP_EXECUTE, WORLD_READ, WORLD_WRITE,
WORLD_EXECUTE, SETUID, and SETGID. Permissions that do not make
sense on certain platforms are ignored on those platforms.

The CONFIGURATIONS argument specifies a list of build configura‐
tions for which the install rule applies (Debug, Release, etc.).

The COMPONENT argument specifies an installation component name
with which the install rule is associated, such as "runtime" or
"development". During component-specific installation only
install rules associated with the given component name will be
executed. During a full installation all components are
installed.

The RENAME argument specifies a name for an installed file that
may be different from the original file. Renaming is allowed
only when a single file is installed by the command.

The OPTIONAL argument specifies that it is not an error if the
file to be installed does not exist.

The TARGETS signature:

The TARGETS form specifies rules for installing targets from a
project. There are five kinds of target files that may be
installed: ARCHIVE, LIBRARY, RUNTIME, FRAMEWORK, and BUNDLE.
Executables are treated as RUNTIME targets, except that those
marked with the MACOSX_BUNDLE property are treated as BUNDLE
targets on OS X. Static libraries are always treated as ARCHIVE
targets. Module libraries are always treated as LIBRARY targets.
For non-DLL platforms shared libraries are treated as LIBRARY
targets, except that those marked with the FRAMEWORK property
are treated as FRAMEWORK targets on OS X. For DLL platforms the
DLL part of a shared library is treated as a RUNTIME target and
the corresponding import library is treated as an ARCHIVE tar‐
get. All Windows-based systems including Cygwin are DLL plat‐
forms. The ARCHIVE, LIBRARY, RUNTIME, and FRAMEWORK arguments
change the type of target to which the subsequent properties
apply. If none is given the installation properties apply to
all target types. If only one is given then only targets of
that type will be installed (which can be used to install just a
DLL or just an import library).

The PRIVATE_HEADER, PUBLIC_HEADER, and RESOURCE arguments cause
subsequent properties to be applied to installing a FRAMEWORK
shared library target's associated files on non-Apple platforms.
Rules defined by these arguments are ignored on Apple platforms
because the associated files are installed into the appropriate
locations inside the framework folder. See documentation of the
PRIVATE_HEADER, PUBLIC_HEADER, and RESOURCE target properties
for details.

Either NAMELINK_ONLY or NAMELINK_SKIP may be specified as a
LIBRARY option. On some platforms a versioned shared library
has a symbolic link such as

lib<name>.so -> lib<name>.so.1

where "lib<name>.so.1" is the soname of the library and
"lib<name>.so" is a "namelink" allowing linkers to find the
library when given "-l<name>". The NAMELINK_ONLY option causes
installation of only the namelink when a library target is
installed. The NAMELINK_SKIP option causes installation of
library files other than the namelink when a library target is
installed. When neither option is given both portions are
installed. On platforms where versioned shared libraries do not
have namelinks or when a library is not versioned the
NAMELINK_SKIP option installs the library and the NAMELINK_ONLY
option installs nothing. See the VERSION and SOVERSION target
properties for details on creating versioned shared libraries.

One or more groups of properties may be specified in a single
call to the TARGETS form of this command. A target may be
installed more than once to different locations. Consider hypo‐
thetical targets "myExe", "mySharedLib", and "myStaticLib". The
code

install(TARGETS myExe mySharedLib myStaticLib
RUNTIME DESTINATION bin
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib/static)
install(TARGETS mySharedLib DESTINATION /some/full/path)

will install myExe to <prefix>/bin and myStaticLib to <pre‐
fix>/lib/static. On non-DLL platforms mySharedLib will be
installed to <prefix>/lib and /some/full/path. On DLL platforms
the mySharedLib DLL will be installed to <prefix>/bin and
/some/full/path and its import library will be installed to
<prefix>/lib/static and /some/full/path. On non-DLL platforms
mySharedLib will be installed to <prefix>/lib and
/some/full/path.

The EXPORT option associates the installed target files with an
export called <export-name>. It must appear before any RUNTIME,
LIBRARY, or ARCHIVE options. See documentation of the
install(EXPORT ...) signature below for details.

Installing a target with EXCLUDE_FROM_ALL set to true has unde‐
fined behavior.

The FILES signature:

install(FILES files... DESTINATION <dir>
[PERMISSIONS permissions...]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>]
[RENAME <name>] [OPTIONAL])

The FILES form specifies rules for installing files for a
project. File names given as relative paths are interpreted
with respect to the current source directory. Files installed
by this form are by default given permissions OWNER_WRITE,
OWNER_READ, GROUP_READ, and WORLD_READ if no PERMISSIONS argu‐
ment is given.

The PROGRAMS signature:

install(PROGRAMS files... DESTINATION <dir>
[PERMISSIONS permissions...]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>]
[RENAME <name>] [OPTIONAL])

The PROGRAMS form is identical to the FILES form except that the
default permissions for the installed file also include
OWNER_EXECUTE, GROUP_EXECUTE, and WORLD_EXECUTE. This form is
intended to install programs that are not targets, such as shell
scripts. Use the TARGETS form to install targets built within
the project.

The DIRECTORY signature:

install(DIRECTORY dirs... DESTINATION <dir>
[FILE_PERMISSIONS permissions...]
[DIRECTORY_PERMISSIONS permissions...]
[USE_SOURCE_PERMISSIONS]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>] [FILES_MATCHING]
[[PATTERN <pattern> | REGEX <regex>]
[EXCLUDE] [PERMISSIONS permissions...]] [...])

The DIRECTORY form installs contents of one or more directories
to a given destination. The directory structure is copied ver‐
batim to the destination. The last component of each directory
name is appended to the destination directory but a trailing
slash may be used to avoid this because it leaves the last com‐
ponent empty. Directory names given as relative paths are
interpreted with respect to the current source directory. If no
input directory names are given the destination directory will
be created but nothing will be installed into it. The FILE_PER‐
MISSIONS and DIRECTORY_PERMISSIONS options specify permissions
given to files and directories in the destination. If
USE_SOURCE_PERMISSIONS is specified and FILE_PERMISSIONS is not,
file permissions will be copied from the source directory struc‐
ture. If no permissions are specified files will be given the
default permissions specified in the FILES form of the command,
and the directories will be given the default permissions speci‐
fied in the PROGRAMS form of the command.

Installation of directories may be controlled with fine granu‐
larity using the PATTERN or REGEX options. These "match"
options specify a globbing pattern or regular expression to
match directories or files encountered within input directories.
They may be used to apply certain options (see below) to a sub‐
set of the files and directories encountered. The full path to
each input file or directory (with forward slashes) is matched
against the expression. A PATTERN will match only complete file
names: the portion of the full path matching the pattern must
occur at the end of the file name and be preceded by a slash. A
REGEX will match any portion of the full path but it may use '/'
and '$' to simulate the PATTERN behavior. By default all files
and directories are installed whether or not they are matched.
The FILES_MATCHING option may be given before the first match
option to disable installation of files (but not directories)
not matched by any expression. For example, the code

install(DIRECTORY src/ DESTINATION include/myproj
FILES_MATCHING PATTERN "*.h")

will extract and install header files from a source tree.

Some options may follow a PATTERN or REGEX expression and are
applied only to files or directories matching them. The EXCLUDE
option will skip the matched file or directory. The PERMISSIONS
option overrides the permissions setting for the matched file or
directory. For example the code

install(DIRECTORY icons scripts/ DESTINATION share/myproj
PATTERN "CVS" EXCLUDE
PATTERN "scripts/*"
PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ
GROUP_EXECUTE GROUP_READ)

will install the icons directory to share/myproj/icons and the
scripts directory to share/myproj. The icons will get default
file permissions, the scripts will be given specific permis‐
sions, and any CVS directories will be excluded.

The SCRIPT and CODE signature:

install([[SCRIPT <file>] [CODE <code>]] [...])

The SCRIPT form will invoke the given CMake script files during
installation. If the script file name is a relative path it
will be interpreted with respect to the current source direc‐
tory. The CODE form will invoke the given CMake code during
installation. Code is specified as a single argument inside a
double-quoted string. For example, the code

install(CODE "MESSAGE(\"Sample install message.\")")

will print a message during installation.

The EXPORT signature:

install(EXPORT <export-name> DESTINATION <dir>
[NAMESPACE <namespace>] [FILE <name>.cmake]
[PERMISSIONS permissions...]
[CONFIGURATIONS [Debug|Release|...]]
[COMPONENT <component>])

The EXPORT form generates and installs a CMake file containing
code to import targets from the installation tree into another
project. Target installations are associated with the export
<export-name> using the EXPORT option of the install(TARGETS
...) signature documented above. The NAMESPACE option will
prepend <namespace> to the target names as they are written to
the import file. By default the generated file will be called
<export-name>.cmake but the FILE option may be used to specify a
different name. The value given to the FILE option must be a
file name with the ".cmake" extension. If a CONFIGURATIONS
option is given then the file will only be installed when one of
the named configurations is installed. Additionally, the gener‐
ated import file will reference only the matching target config‐
urations. If a COMPONENT option is specified that does not
match that given to the targets associated with <export-name>
the behavior is undefined. If a library target is included in
the export but a target to which it links is not included the
behavior is unspecified.

The EXPORT form is useful to help outside projects use targets
built and installed by the current project. For example, the
code

install(TARGETS myexe EXPORT myproj DESTINATION bin)
install(EXPORT myproj NAMESPACE mp_ DESTINATION lib/myproj)

will install the executable myexe to <prefix>/bin and code to
import it in the file "<prefix>/lib/myproj/myproj.cmake". An
outside project may load this file with the include command and
reference the myexe executable from the installation tree using
the imported target name mp_myexe as if the target were built in
its own tree.

NOTE: This command supercedes the INSTALL_TARGETS command and
the target properties PRE_INSTALL_SCRIPT and
POST_INSTALL_SCRIPT. It also replaces the FILES forms of the
INSTALL_FILES and INSTALL_PROGRAMS commands. The processing
order of these install rules relative to those generated by
INSTALL_TARGETS, INSTALL_FILES, and INSTALL_PROGRAMS commands is
not defined.

link_directories
Specify directories in which the linker will look for libraries.

link_directories(directory1 directory2 ...)

Specify the paths in which the linker should search for
libraries. The command will apply only to targets created after
it is called. For historical reasons, relative paths given to
this command are passed to the linker unchanged (unlike many
CMake commands which interpret them relative to the current
source directory).

list List operations.

list(LENGTH <list> <output variable>)
list(GET <list> <element index> [<element index> ...] <output variable>)
list(APPEND <list> <element> [<element> ...])
list(FIND <list> <value> <output variable>)
list(INSERT <list> <element_index> <element> [<element> ...])
list(REMOVE_ITEM <list> <value> [<value> ...])
list(REMOVE_AT <list> <index> [<index> ...])
list(REMOVE_DUPLICATES <list>)
list(REVERSE <list>)
list(SORT <list>)

LENGTH will return a given list's length.

GET will return list of elements specified by indices from the
list.

APPEND will append elements to the list.

FIND will return the index of the element specified in the list
or -1 if it wasn't found.

INSERT will insert elements to the list to the specified loca‐
tion.

REMOVE_AT and REMOVE_ITEM will remove items from the list. The
difference is that REMOVE_ITEM will remove the given items,
while REMOVE_AT will remove the items at the given indices.

REMOVE_DUPLICATES will remove duplicated items in the list.

REVERSE reverses the contents of the list in-place.

SORT sorts the list in-place alphabetically.

NOTES: A list in cmake is a ; separated group of strings. To
create a list the set command can be used. For example, set(var
a b c d e) creates a list with a;b;c;d;e, and set(var "a b c d
e") creates a string or a list with one item in it.

When specifying index values, if <element index> is 0 or
greater, it is indexed from the beginning of the list, with 0
representing the first list element. If <element index> is -1 or
lesser, it is indexed from the end of the list, with -1 repre‐
senting the last list element. Be careful when counting with
negative indices: they do not start from 0. -0 is equivalent to
0, the first list element.

load_cache
Load in the values from another project's CMake cache.

load_cache(pathToCacheFile READ_WITH_PREFIX
prefix entry1...)

Read the cache and store the requested entries in variables with
their name prefixed with the given prefix. This only reads the
values, and does not create entries in the local project's
cache.

load_cache(pathToCacheFile [EXCLUDE entry1...]
[INCLUDE_INTERNALS entry1...])

Load in the values from another cache and store them in the
local project's cache as internal entries. This is useful for a
project that depends on another project built in a different
tree. EXCLUDE option can be used to provide a list of entries
to be excluded. INCLUDE_INTERNALS can be used to provide a list
of internal entries to be included. Normally, no internal
entries are brought in. Use of this form of the command is
strongly discouraged, but it is provided for backward compati‐
bility.

load_command
Load a command into a running CMake.

load_command(COMMAND_NAME <loc1> [loc2 ...])

The given locations are searched for a library whose name is
cmCOMMAND_NAME. If found, it is loaded as a module and the com‐
mand is added to the set of available CMake commands. Usually,
TRY_COMPILE is used before this command to compile the module.
If the command is successfully loaded a variable named

CMAKE_LOADED_COMMAND_<COMMAND_NAME>

will be set to the full path of the module that was loaded.
Otherwise the variable will not be set.

macro Start recording a macro for later invocation as a command.

macro(<name> [arg1 [arg2 [arg3 ...]]])
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endmacro(<name>)

Define a macro named <name> that takes arguments named arg1 arg2
arg3 (...). Commands listed after macro, but before the match‐
ing endmacro, are not invoked until the macro is invoked. When
it is invoked, the commands recorded in the macro are first mod‐
ified by replacing formal parameters (${arg1}) with the argu‐
ments passed, and then invoked as normal commands. In addition
to referencing the formal parameters you can reference the val‐
ues ${ARGC} which will be set to the number of arguments passed
into the function as well as ${ARGV0} ${ARGV1} ${ARGV2} ...
which will have the actual values of the arguments passed in.
This facilitates creating macros with optional arguments. Addi‐
tionally ${ARGV} holds the list of all arguments given to the
macro and ${ARGN} holds the list of argument pass the last
expected argument. Note that the parameters to a macro and val‐
ues such as ARGN are not variables in the usual CMake sense.
They are string replacements much like the c preprocessor would
do with a macro. If you want true CMake variables you should
look at the function command.

See the cmake_policy() command documentation for the behavior of
policies inside macros.

mark_as_advanced
Mark cmake cached variables as advanced.

mark_as_advanced([CLEAR|FORCE] VAR VAR2 VAR...)

Mark the named cached variables as advanced. An advanced vari‐
able will not be displayed in any of the cmake GUIs unless the
show advanced option is on. If CLEAR is the first argument
advanced variables are changed back to unadvanced. If FORCE is
the first argument, then the variable is made advanced. If nei‐
ther FORCE nor CLEAR is specified, new values will be marked as
advanced, but if the variable already has an
advanced/non-advanced state, it will not be changed.

It does nothing in script mode.

math Mathematical expressions.

math(EXPR <output variable> <math expression>)

EXPR evaluates mathematical expression and return result in the
output variable. Example mathematical expression is '5 * ( 10 +
13 )'. Supported operators are + - * / % | & ^ ~ << >> * / %.
They have the same meaning as they do in c code.

message
Display a message to the user.

message([SEND_ERROR | STATUS | FATAL_ERROR]
"message to display" ...)

By default the message is displayed in a pop up window (CMake‐
Setup), or in the stdout of cmake, or the error section of
ccmake. If the first argument is SEND_ERROR then an error is
raised, and the generate phase will be skipped. If the first
argument is FATAL_ERROR, all processing is halted. If the first
argument is STATUS then the message is displayed in the progress
line for the GUI, or with a -- in the command line cmake.

option Provides an option that the user can optionally select.

option(<option_variable> "help string describing option"
[initial value])

Provide an option for the user to select as ON or OFF. If no
initial value is provided, OFF is used.

output_required_files
Output a list of required source files for a specified source
file.

output_required_files(srcfile outputfile)

Outputs a list of all the source files that are required by the
specified srcfile. This list is written into outputfile. This is
similar to writing out the dependencies for srcfile except that
it jumps from .h files into .cxx, .c and .cpp files if possible.

project
Set a name for the entire project.

project(<projectname> [languageName1 languageName2 ... ] )

Sets the name of the project. Additionally this sets the vari‐
ables <projectName>_BINARY_DIR and <projectName>_SOURCE_DIR to
the respective values.

Optionally you can specify which languages your project sup‐
ports. Example languages are CXX (i.e. C++), C, Fortran, etc.
By default C and CXX are enabled. E.g. if you do not have a C++
compiler, you can disable the check for it by explicitely list‐
ing the languages you want to support, e.g. C. By using the
special language "NONE" all checks for any language can be dis‐
abled.

qt_wrap_cpp
Create Qt Wrappers.

qt_wrap_cpp(resultingLibraryName DestName
SourceLists ...)

Produce moc files for all the .h files listed in the
SourceLists. The moc files will be added to the library using
the DestName source list.

qt_wrap_ui
Create Qt user interfaces Wrappers.

qt_wrap_ui(resultingLibraryName HeadersDestName
SourcesDestName SourceLists ...)

Produce .h and .cxx files for all the .ui files listed in the
SourceLists. The .h files will be added to the library using
the HeadersDestNamesource list. The .cxx files will be added to
the library using the SourcesDestNamesource list.

remove_definitions
Removes -D define flags added by add_definitions.

remove_definitions(-DFOO -DBAR ...)

Removes flags (added by add_definitions) from the compiler com‐
mand line for sources in the current directory and below.

return Return from a file, directory or function.

return()

Returns from a file, directory or function. When this command is
encountered in an included file (via include() or find_pack‐
age()), it causes processing of the current file to stop and
control is returned to the including file. If it is encountered
in a file which is not included by another file, e.g. a CMake‐
Lists.txt, control is returned to the parent directory if there
is one. If return is called in a function, control is returned
to the caller of the function. Note that a macro is not a func‐
tion and does not handle return like a function does.

separate_arguments
Split space separated arguments into a semi-colon separated
list.

separate_arguments(VARIABLE)

Convert the value of VARIABLE to a semi-colon separated list.
All spaces are replaced with ';'. This helps with generating
command lines.

set Set a CMAKE variable to a given value.

set(<variable> <value> [[CACHE <type> <docstring> [FORCE]] | PARENT_SCOPE])

Within CMake sets <variable> to the value <value>. <value> is
expanded before <variable> is set to it. If CACHE is present,
then the <variable> is put in the cache. <type> and <docstring>
are then required. <type> is used by the CMake GUI to choose a
widget with which the user sets a value. The value for <type>
may be one of

FILEPATH = File chooser dialog.
PATH = Directory chooser dialog.
STRING = Arbitrary string.
BOOL = Boolean ON/OFF checkbox.
INTERNAL = No GUI entry (used for persistent variables).

If <type> is INTERNAL, then the <value> is always written into
the cache, replacing any values existing in the cache. If it is
not a cache variable, then this always writes into the current
makefile. The FORCE option will overwrite the cache value remov‐
ing any changes by the user.

If PARENT_SCOPE is present, the variable will be set in the
scope above the current scope. Each new directory or function
creates a new scope. This command will set the value of a vari‐
able into the parent directory or calling function (whichever is
applicable to the case at hand) If VALUE is not specified then
the variable is removed from the parent scope.

set(<variable> <value1> ... <valueN>)

In this case <variable> is set to a semicolon separated list of
values.

<variable> can be an environment variable such as:

set( ENV{PATH} /home/martink )

in which case the environment variable will be set.

set_directory_properties
Set a property of the directory.

set_directory_properties(PROPERTIES prop1 value1 prop2 value2)

Set a property for the current directory and subdirectories. If
the property is not found, CMake will report an error. The prop‐
erties include: INCLUDE_DIRECTORIES, LINK_DIRECTORIES,
INCLUDE_REGULAR_EXPRESSION, and ADDITIONAL_MAKE_CLEAN_FILES.

ADDITIONAL_MAKE_CLEAN_FILES is a list of files that will be
cleaned as a part of "make clean" stage.

set_property
Set a named property in a given scope.

set_property(<GLOBAL |
DIRECTORY [dir] |
TARGET [target1 [target2 ...]] |
SOURCE [src1 [src2 ...]] |
TEST [test1 [test2 ...]]>
[APPEND]
PROPERTY <name> [value1 [value2 ...]])

Set one property on zero or more objects of a scope. The first
argument determines the scope in which the property is set. It
must be one of the following:

GLOBAL scope is unique and does not accept a name.

DIRECTORY scope defaults to the current directory but another
directory (already processed by CMake) may be named by full or
relative path.

TARGET scope may name zero or more existing targets.

SOURCE scope may name zero or more source files.

TEST scope may name zero or more existing tests.

The required PROPERTY option is immediately followed by the name
of the property to set. Remaining arguments are used to compose
the property value in the form of a semicolon-separated list.
If the APPEND option is given the list is appended to any exist‐
ing property value.

set_source_files_properties
Source files can have properties that affect how they are built.

set_source_files_properties(file1 file2 ...
PROPERTIES prop1 value1
prop2 value2 ...)

Set properties on a file. The syntax for the command is to list
all the files you want to change, and then provide the values
you want to set next. You can make up your own properties as
well. The following are used by CMake. The ABSTRACT flag
(boolean) is used by some class wrapping commands. If
WRAP_EXCLUDE (boolean) is true then many wrapping commands will
ignore this file. If GENERATED (boolean) is true then it is not
an error if this source file does not exist when it is added to
a target. Obviously, it must be created (presumably by a custom
command) before the target is built. If the HEADER_FILE_ONLY
(boolean) property is true then the file is not compiled. This
is useful if you want to add extra non build files to an IDE.
OBJECT_DEPENDS (string) adds dependencies to the object file.
COMPILE_FLAGS (string) is passed to the compiler as additional
command line arguments when the source file is compiled. LAN‐
GUAGE (string) CXX|C will change the default compiler used to
compile the source file. The languages used need to be enabled
in the PROJECT command. If SYMBOLIC (boolean) is set to true the
build system will be informed that the source file is not actu‐
ally created on disk but instead used as a symbolic name for a
build rule.

set_target_properties
Targets can have properties that affect how they are built.

set_target_properties(target1 target2 ...
PROPERTIES prop1 value1
prop2 value2 ...)

Set properties on a target. The syntax for the command is to
list all the files you want to change, and then provide the val‐
ues you want to set next. You can use any prop value pair you
want and extract it later with the GET_TARGET_PROPERTY command.

Properties that affect the name of a target's output file are as
follows. The PREFIX and SUFFIX properties override the default
target name prefix (such as "lib") and suffix (such as ".so").
IMPORT_PREFIX and IMPORT_SUFFIX are the equivalent properties
for the import library corresponding to a DLL (for SHARED
library targets). OUTPUT_NAME sets the real name of a target
when it is built and can be used to help create two targets of
the same name even though CMake requires unique logical target
names. There is also a <CONFIG>_OUTPUT_NAME that can set the
output name on a per-configuration basis. <CONFIG>_POSTFIX sets
a postfix for the real name of the target when it is built under
the configuration named by <CONFIG> (in upper-case, such as
"DEBUG_POSTFIX"). The value of this property is initialized
when the target is created to the value of the variable
CMAKE_<CONFIG>_POSTFIX (except for executable targets because
earlier CMake versions which did not use this variable for exe‐
cutables).

The LINK_FLAGS property can be used to add extra flags to the
link step of a target. LINK_FLAGS_<CONFIG> will add to the con‐
figuration <CONFIG>, for example, DEBUG, RELEASE, MINSIZEREL,
RELWITHDEBINFO. DEFINE_SYMBOL sets the name of the preprocessor
symbol defined when compiling sources in a shared library. If
not set here then it is set to target_EXPORTS by default (with
some substitutions if the target is not a valid C identifier).
This is useful for headers to know whether they are being
included from inside their library our outside to properly setup
dllexport/dllimport decorations. The COMPILE_FLAGS property sets
additional compiler flags used to build sources within the tar‐
get. It may also be used to pass additional preprocessor defi‐
nitions.

The LINKER_LANGUAGE property is used to change the tool used to
link an executable or shared library. The default is set the
language to match the files in the library. CXX and C are common
values for this property.

For shared libraries VERSION and SOVERSION can be used to spec‐
ify the build version and api version respectively. When build‐
ing or installing appropriate symlinks are created if the plat‐
form supports symlinks and the linker supports so-names. If only
one of both is specified the missing is assumed to have the same
version number. For executables VERSION can be used to specify
the build version. When building or installing appropriate sym‐
links are created if the platform supports symlinks. For shared
libraries and executables on Windows the VERSION attribute is
parsed to extract a "major.minor" version number. These numbers
are used as the image version of the binary.

There are a few properties used to specify RPATH rules.
INSTALL_RPATH is a semicolon-separated list specifying the rpath
to use in installed targets (for platforms that support it).
INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to true
will append directories in the linker search path and outside
the project to the INSTALL_RPATH. SKIP_BUILD_RPATH is a boolean
specifying whether to skip automatic generation of an rpath
allowing the target to run from the build tree.
BUILD_WITH_INSTALL_RPATH is a boolean specifying whether to link
the target in the build tree with the INSTALL_RPATH. This takes
precedence over SKIP_BUILD_RPATH and avoids the need for relink‐
ing before installation. INSTALL_NAME_DIR is a string specify‐
ing the directory portion of the "install_name" field of shared
libraries on Mac OSX to use in the installed targets. When the
target is created the values of the variables
CMAKE_INSTALL_RPATH, CMAKE_INSTALL_RPATH_USE_LINK_PATH,
CMAKE_SKIP_BUILD_RPATH, CMAKE_BUILD_WITH_INSTALL_RPATH, and
CMAKE_INSTALL_NAME_DIR are used to initialize these properties.

PROJECT_LABEL can be used to change the name of the target in an
IDE like visual studio. VS_KEYWORD can be set to change the
visual studio keyword, for example QT integration works better
if this is set to Qt4VSv1.0.

VS_SCC_PROJECTNAME, VS_SCC_LOCALPATH, VS_SCC_PROVIDER can be set
to add support for source control bindings in a Visual Studio
project file.

When a library is built CMake by default generates code to
remove any existing library using all possible names. This is
needed to support libraries that switch between STATIC and
SHARED by a user option. However when using OUTPUT_NAME to
build a static and shared library of the same name using differ‐
ent logical target names the two targets will remove each
other's files. This can be prevented by setting the
CLEAN_DIRECT_OUTPUT property to 1.

The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are
the old way to specify CMake scripts to run before and after
installing a target. They are used only when the old
INSTALL_TARGETS command is used to install the target. Use the
INSTALL command instead.

The EXCLUDE_FROM_DEFAULT_BUILD property is used by the visual
studio generators. If it is set to 1 the target will not be
part of the default build when you select "Build Solution".

set_tests_properties
Set a property of the tests.

set_tests_properties(test1 [test2...] PROPERTIES prop1 value1 prop2 value2)

Set a property for the tests. If the property is not found,
CMake will report an error. The properties include:

WILL_FAIL: If set to true, this will invert the pass/fail flag
of the test.

PASS_REGULAR_EXPRESSION: If set, the test output will be checked
against the specified regular expressions and at least one of
the regular expressions has to match, otherwise the test will
fail.

Example: PASS_REGULAR_EXPRESSION "TestPassed;All ok"

FAIL_REGULAR_EXPRESSION: If set, if the output will match to one
of specified regular expressions, the test will fail.

Example: PASS_REGULAR_EXPRESSION "[^a-z]Error;ERROR;Failed"

Both PASS_REGULAR_EXPRESSION and FAIL_REGULAR_EXPRESSION expect
a list of regular expressions.

site_name
Set the given variable to the name of the computer.

site_name(variable)

source_group
Define a grouping for sources in the makefile.

source_group(name [REGULAR_EXPRESSION regex] [FILES src1 src2 ...])

Defines a group into which sources will be placed in project
files. This is mainly used to setup file tabs in Visual Studio.
Any file whose name is listed or matches the regular expression
will be placed in this group. If a file matches multiple
groups, the LAST group that explicitly lists the file will be
favored, if any. If no group explicitly lists the file, the
LAST group whose regular expression matches the file will be
favored.

The name of the group may contain backslashes to specify sub‐
groups:

source_group(outer\\inner ...)

For backwards compatibility, this command is also supports the
format:

source_group(name regex)

string String operations.

string(REGEX MATCH <regular_expression>
<output variable> <input> [<input>...])
string(REGEX MATCHALL <regular_expression>
<output variable> <input> [<input>...])
string(REGEX REPLACE <regular_expression>
<replace_expression> <output variable>
<input> [<input>...])
string(REPLACE <match_string>
<replace_string> <output variable>
<input> [<input>...])
string(COMPARE EQUAL <string1> <string2> <output variable>)
string(COMPARE NOTEQUAL <string1> <string2> <output variable>)
string(COMPARE LESS <string1> <string2> <output variable>)
string(COMPARE GREATER <string1> <string2> <output variable>)
string(ASCII <number> [<number> ...] <output variable>)
string(CONFIGURE <string1> <output variable>
[@ONLY] [ESCAPE_QUOTES])
string(TOUPPER <string1> <output variable>)
string(TOLOWER <string1> <output variable>)
string(LENGTH <string> <output variable>)
string(SUBSTRING <string> <begin> <length> <output variable>)
string(STRIP <string> <output variable>)
string(RANDOM [LENGTH <length>] [ALPHABET <alphabet>]
<output variable>)

REGEX MATCH will match the regular expression once and store the
match in the output variable.

REGEX MATCHALL will match the regular expression as many times
as possible and store the matches in the output variable as a
list.

REGEX REPLACE will match the regular expression as many times as
possible and substitute the replacement expression for the match
in the output. The replace expression may refer to paren-delim‐
ited subexpressions of the match using \1, \2, ..., \9. Note
that two backslashes (\\1) are required in CMake code to get a
backslash through argument parsing.

REPLACE will replace all occurrences of match_string in the
input with replace_string and store the result in the output.

COMPARE EQUAL/NOTEQUAL/LESS/GREATER will compare the strings and
store true or false in the output variable.

ASCII will convert all numbers into corresponding ASCII charac‐
ters.

CONFIGURE will transform a string like CONFIGURE_FILE transforms
a file.

TOUPPER/TOLOWER will convert string to upper/lower characters.

LENGTH will return a given string's length.

SUBSTRING will return a substring of a given string.

STRIP will return a substring of a given string with leading and
trailing spaces removed.

RANDOM will return a random string of given length consisting of
characters from the given alphabet. Default length is 5 charac‐
ters and default alphabet is all numbers and upper and lower
case letters.

The following characters have special meaning in regular expres‐
sions:

^ Matches at beginning of a line
$ Matches at end of a line
. Matches any single character
[ ] Matches any character(s) inside the brackets
[^ ] Matches any character(s) not inside the brackets
- Matches any character in range on either side of a dash
* Matches preceding pattern zero or more times
+ Matches preceding pattern one or more times
? Matches preceding pattern zero or once only
| Matches a pattern on either side of the |
() Saves a matched subexpression, which can be referenced
in the REGEX REPLACE operation. Additionally it is saved
by all regular expression-related commands, including
e.g. if( MATCHES ), in the variables CMAKE_MATCH_(0..9).

target_link_libraries
Link a target to given libraries.

target_link_libraries(<target> [lib1 [lib2 [...]]]
[[debug|optimized|general] <lib>] ...)

Specify a list of libraries to be linked into the specified tar‐
get. If any library name matches that of a target in the cur‐
rent project a dependency will automatically be added in the
build system to make sure the library being linked is up-to-date
before the target links.

A "debug", "optimized", or "general" keyword indicates that the
library immediately following it is to be used only for the cor‐
responding build configuration. The "debug" keyword corresponds
to the Debug configuration (or to configurations named in the
DEBUG_CONFIGURATIONS global property if it is set). The "opti‐
mized" keyword corresponds to all other configurations. The
"general" keyword corresponds to all configurations, and is
purely optional (assumed if omitted). Higher granularity may be
achieved for per-configuration rules by creating and linking to
IMPORTED library targets. See the IMPORTED mode of the
add_library command for more information.

Library dependencies are transitive by default. When this tar‐
get is linked into another target then the libraries linked to
this target will appear on the link line for the other target
too. See the LINK_INTERFACE_LIBRARIES target property to over‐
ride the set of transitive link dependencies for a target.

target_link_libraries(<target> LINK_INTERFACE_LIBRARIES
[[debug|optimized|general] <lib>] ...)

The LINK_INTERFACE_LIBRARIES mode appends the libraries to the
LINK_INTERFACE_LIBRARIES and its per-configuration equivalent
target properties instead of using them for linking. Libraries
specified as "debug" are appended to the the LINK_INTER‐
FACE_LIBRARIES_DEBUG property (or to the properties correspond‐
ing to configurations listed in the DEBUG_CONFIGURATIONS global
property if it is set). Libraries specified as "optimized" are
appended to the the LINK_INTERFACE_LIBRARIES property.
Libraries specified as "general" (or without any keyword) are
treated as if specified for both "debug" and "optimized".

try_compile
Try compiling some code.

try_compile(RESULT_VAR bindir srcdir
projectName <targetname> [CMAKE_FLAGS <Flags>]
[OUTPUT_VARIABLE var])

Try compiling a program. In this form, srcdir should contain a
complete CMake project with a CMakeLists.txt file and all
sources. The bindir and srcdir will not be deleted after this
command is run. If <target name> is specified then build just
that target otherwise the all or ALL_BUILD target is built.

try_compile(RESULT_VAR bindir srcfile
[CMAKE_FLAGS <Flags>]
[COMPILE_DEFINITIONS <flags> ...]
[OUTPUT_VARIABLE var]
[COPY_FILE <filename> )

Try compiling a srcfile. In this case, the user need only sup‐
ply a source file. CMake will create the appropriate CMake‐
Lists.txt file to build the source. If COPY_FILE is used, the
compiled file will be copied to the given file.

In this version all files in bindir/CMakeFiles/CMakeTmp, will be
cleaned automatically, for debugging a --debug-trycompile can be
passed to cmake to avoid the clean. Some extra flags that can
be included are, INCLUDE_DIRECTORIES, LINK_DIRECTORIES, and
LINK_LIBRARIES. COMPILE_DEFINITIONS are -Ddefinition that will
be passed to the compile line. try_compile creates a CMake‐
List.txt file on the fly that looks like this:

add_definitions( <expanded COMPILE_DEFINITIONS from calling cmake>)
include_directories(${INCLUDE_DIRECTORIES})
link_directories(${LINK_DIRECTORIES})
add_executable(cmTryCompileExec sources)
target_link_libraries(cmTryCompileExec ${LINK_LIBRARIES})

In both versions of the command, if OUTPUT_VARIABLE is speci‐
fied, then the output from the build process is stored in the
given variable. Return the success or failure in RESULT_VAR.
CMAKE_FLAGS can be used to pass -DVAR:TYPE=VALUE flags to the
cmake that is run during the build.

try_run
Try compiling and then running some code.

try_run(RUN_RESULT_VAR COMPILE_RESULT_VAR
bindir srcfile [CMAKE_FLAGS <Flags>]
[COMPILE_DEFINITIONS <flags>]
[COMPILE_OUTPUT_VARIABLE comp]
[RUN_OUTPUT_VARIABLE run]
[OUTPUT_VARIABLE var]
[ARGS <arg1> <arg2>...])

Try compiling a srcfile. Return TRUE or FALSE for success or
failure in COMPILE_RESULT_VAR. Then if the compile succeeded,
run the executable and return its exit code in RUN_RESULT_VAR.
If the executable was built, but failed to run, then
RUN_RESULT_VAR will be set to FAILED_TO_RUN. COMPILE_OUT‐
PUT_VARIABLE specifies the variable where the output from the
compile step goes. RUN_OUTPUT_VARIABLE specifies the variable
where the output from the running executable goes.

For compatibility reasons OUTPUT_VARIABLE is still supported,
which gives you the output from the compile and run step com‐
bined.

Cross compiling issues

When cross compiling, the executable compiled in the first step
usually cannot be run on the build host. try_run() checks the
CMAKE_CROSSCOMPILING variable to detect whether CMake is in
crosscompiling mode. If that's the case, it will still try to
compile the executable, but it will not try to run the exe‐
cutable. Instead it will create cache variables which must be
filled by the user or by presetting them in some CMake script
file to the values the executable would have produced if it
would have been run on its actual target platform. These vari‐
ables are RUN_RESULT_VAR (explanation see above) and if RUN_OUT‐
PUT_VARIABLE (or OUTPUT_VARIABLE) was used, an additional cache
variable RUN_RESULT_VAR__COMPILE_RESULT_VAR__TRYRUN_OUTPUT.This
is intended to hold stdout and stderr from the executable.

In order to make cross compiling your project easier, use
try_run only if really required. If you use try_run, use
RUN_OUTPUT_VARIABLE (or OUTPUT_VARIABLE) only if really
required. Using them will require that when crosscompiling, the
cache variables will have to be set manually to the output of
the executable. You can also "guard" the calls to try_run with
if(CMAKE_CROSSCOMPILING) and provide an easy-to-preset alterna‐
tive for this case.

unset Unset a variable, cache variable, or environment variable.

unset(<variable> [CACHE])

Removes the specified variable causing it to become undefined.
If CACHE is present then the variable is removed from the cache
instead of the current scope.

<variable> can be an environment variable such as:

unset(ENV{LD_LIBRARY_PATH})

in which case the variable will be removed from the current
environment.

variable_watch
Watch the CMake variable for change.

variable_watch(<variable name> [<command to execute>])

If the specified variable changes, the message will be printed
about the variable being changed. If the command is specified,
the command will be executed. The command will receive the fol‐
lowing arguments: COMMAND(<variable> <access> <value> <current
list file> <stack>)

while Evaluate a group of commands while a condition is true

while(condition)
COMMAND1(ARGS ...)
COMMAND2(ARGS ...)
...
endwhile(condition)

All commands between while and the matching endwhile are
recorded without being invoked. Once the endwhile is evaluated,
the recorded list of commands is invoked as long as the condi‐
tion is true. The condition is evaluated using the same logic as
the if command.

PROPERTIES
CMake Properties - Properties supported by CMake, the Cross-Platform Makefile Generator.

This is the documentation for the properties supported by CMake. Prop‐
erties can have different scopes. They can either be assigned to a
source file, a directory, a target or globally to CMake. By modifying
the values of properties the behaviour of the build system can be cus‐
tomized.

PROPERTIES OF GLOBAL SCOPE
ALLOW_DUPLICATE_CUSTOM_TARGETS
Allow duplicate custom targets to be created.

Normally CMake requires that all targets built in a project have
globally unique logical names (see policy CMP0002). This is
necessary to generate meaningful project file names in Xcode and
VS IDE generators. It also allows the target names to be refer‐
enced unambiguously.

Makefile generators are capable of supporting duplicate custom
target names. For projects that care only about Makefile gener‐
ators and do not wish to support Xcode or VS IDE generators, one
may set this property to true to allow duplicate custom targets.
The property allows multiple add_custom_target command calls in
different directories to specify the same target name. However,
setting this property will cause non-Makefile generators to pro‐
duce an error and refuse to generate the project.

DEBUG_CONFIGURATIONS
Specify which configurations are for debugging.

The value must be a semi-colon separated list of configuration
names. Currently this property is used only by the tar‐
get_link_libraries command (see its documentation for details).
Additional uses may be defined in the future.

This property must be set at the top level of the project and
before the first target_link_libraries command invocation. If
any entry in the list does not match a valid configuration for
the project the behavior is undefined.

DISABLED_FEATURES
List of features which are disabled during the CMake run.

List of features which are disabled during the CMake run. Be
default it contains the names of all packages which were not
found. This is determined using the <NAME>_FOUND variables.
Packages which are searched QUIET are not listed. A project can
add its own features to this list.This property is used by the
macros in FeatureSummary.cmake.

ENABLED_FEATURES
List of features which are enabled during the CMake run.

List of features which are enabled during the CMake run. Be
default it contains the names of all packages which were found.
This is determined using the <NAME>_FOUND variables. Packages
which are searched QUIET are not listed. A project can add its
own features to this list.This property is used by the macros in
FeatureSummary.cmake.

ENABLED_LANGUAGES
Read-only property that contains the list of currently enabled
languages

Set to list of currently enabled lanauges.

FIND_LIBRARY_USE_LIB64_PATHS
Whether FIND_LIBRARY should automatically search lib64 directo‐
ries.

FIND_LIBRARY_USE_LIB64_PATHS is a boolean specifying whether the
FIND_LIBRARY command should automatically search the lib64 vari‐
ant of directories called lib in the search path when building
64-bit binaries.

GLOBAL_DEPENDS_DEBUG_MODE
Enable global target dependency graph debug mode.

CMake automatically analyzes the global inter-target dependency
graph at the beginning of native build system generation. This
property causes it to display details of its analysis to stderr.

IN_TRY_COMPILE
Read-only property that is true during a try-compile configura‐
tion.

True when building a project inside a TRY_COMPILE or TRY_RUN
command.

PACKAGES_FOUND
List of packages which were found during the CMake run.

List of packages which were found during the CMake run. Whether
a package has been found is determined using the <NAME>_FOUND
variables.

PACKAGES_NOT_FOUND
List of packages which were not found during the CMake run.

List of packages which were not found during the CMake run.
Whether a package has been found is determined using the
<NAME>_FOUND variables.

REPORT_UNDEFINED_PROPERTIES
If set, report any undefined properties to this file.

If this property is set to a filename then when CMake runs it
will report any properties or variables that were accessed but
not defined into the filename specified in this property.

TARGET_ARCHIVES_MAY_BE_SHARED_LIBS
Set if shared libraries may be named like archives.

On AIX shared libraries may be named "lib<name>.a". This prop‐
erty is set to true on such platforms.

TARGET_SUPPORTS_SHARED_LIBS
Does the target platform support shared libraries.

TARGET_SUPPORTS_SHARED_LIBS is a boolean specifying whether the
target platform supports shared libraries. Basically all current
general general purpose OS do so, the exception are usually
embedded systems with no or special OSs.

__CMAKE_DELETE_CACHE_CHANGE_VARS_
Internal property

Used to detect compiler changes, Do not set.

PROPERTIES ON DIRECTORIES
ADDITIONAL_MAKE_CLEAN_FILES
Additional files to clean during the make clean stage.

A list of files that will be cleaned as a part of the "make
clean" stage.

CACHE_VARIABLES
List of cache variables available in the current directory.

This read-only property specifies the list of CMake cache vari‐
ables currently defined. It is intended for debugging purposes.

CLEAN_NO_CUSTOM
Should the output of custom commands be left.

If this is true then the outputs of custom commands for this
directory will not be removed during the "make clean" stage.

COMPILE_DEFINITIONS
Preprocessor definitions for compiling a directory's sources.

The COMPILE_DEFINITIONS property may be set to a list of pre‐
processor definitions using the syntax VAR or VAR=value. Func‐
tion-style definitions are not supported. CMake will automati‐
cally escape the value correctly for the native build system
(note that CMake language syntax may require escapes to specify
some values). This property may be set on a per-configuration
basis using the name COMPILE_DEFINITIONS_<CONFIG> where <CONFIG>
is an upper-case name (ex. "COMPILE_DEFINITIONS_DEBUG"). This
property will be initialized in each directory by its value in
the directory's parent.

CMake will automatically drop some definitions that are not sup‐
ported by the native build tool. The VS6 IDE does not support
definition values with spaces (but NMake does).

Dislaimer: Most native build tools have poor support for escap‐
ing certain values. CMake has work-arounds for many cases but
some values may just not be possible to pass correctly. If a
value does not seem to be escaped correctly, do not attempt to
work-around the problem by adding escape sequences to the value.
Your work-around may break in a future version of CMake that has
improved escape support. Instead consider defining the macro in
a (configured) header file. Then report the limitation.

COMPILE_DEFINITIONS_<CONFIG>
Per-configuration preprocessor definitions in a directory.

This is the configuration-specific version of COMPILE_DEFINI‐
TIONS. This property will be initialized in each directory by
its value in the directory's parent.

DEFINITIONS
For CMake 2.4 compatibility only. Use COMPILE_DEFINITIONS
instead.

This read-only property specifies the list of flags given so far
to the add_definitions command. It is intended for debugging
purposes. Use the COMPILE_DEFINITIONS instead.

EXCLUDE_FROM_ALL
Exclude the directory from the all target of its parent.

A property on a directory that indicates if its targets are
excluded from the default build target. If it is not, then with
a Makefile for example typing make will cause the targets to be
built. The same concept applies to the default build of other
generators.

IMPLICIT_DEPENDS_INCLUDE_TRANSFORM
Specify #include line transforms for dependencies in a direc‐
tory.

This property specifies rules to transform macro-like #include
lines during implicit dependency scanning of C and C++ source
files. The list of rules must be semicolon-separated with each
entry of the form "A_MACRO(%)=value-with-%" (the % must be lit‐
eral). During dependency scanning occurrences of A_MACRO(...)
on #include lines will be replaced by the value given with the
macro argument substituted for '%'. For example, the entry

MYDIR(%)=<mydir/%>

will convert lines of the form

#include MYDIR(myheader.h)

#include <mydir/myheader.h>

allowing the dependency to be followed.

This property applies to sources in all targets within a direc‐
tory. The property value is initialized in each directory by
its value in the directory's parent.

INCLUDE_DIRECTORIES
List of preprocessor include file search directories.

This read-only property specifies the list of directories given
so far to the include_directories command. It is intended for
debugging purposes.

INCLUDE_REGULAR_EXPRESSION
Include file scanning regular expression.

This read-only property specifies the regular expression used
during dependency scanning to match include files that should be
followed. See the include_regular_expression command.

LINK_DIRECTORIES
List of linker search directories.

This read-only property specifies the list of directories given
so far to the link_directories command. It is intended for
debugging purposes.

LISTFILE_STACK
The current stack of listfiles being processed.

This property is mainly useful when trying to debug errors in
your CMake scripts. It returns a list of what list files are
currently being processed, in order. So if one listfile does an
INCLUDE command then that is effectively pushing the included
listfile onto the stack.

MACROS List of macro commands available in the current directory.

This read-only property specifies the list of CMake macros cur‐
rently defined. It is intended for debugging purposes. See the
macro command.

PARENT_DIRECTORY
Source directory that added current subdirectory.

This read-only property specifies the source directory that
added the current source directory as a subdirectory of the
build. In the top-level directory the value is the
empty-string.

TEST_INCLUDE_FILE
A cmake file that will be included when ctest is run.

If you specify TEST_INCLUDE_FILE, that file will be included and
processed when ctest is run on the directory.

VARIABLES
List of variables defined in the current directory.

This read-only property specifies the list of CMake variables
currently defined. It is intended for debugging purposes.

PROPERTIES ON TARGETS
<CONFIG>_POSTFIX
Postfix to append to the target file name for configuration
<CONFIG>.

When building with configuration <CONFIG> the value of this
property is appended to the target file name built on disk. For
non-executable targets, this property is initialized by the
value of the variable CMAKE_<CONFIG>_POSTFIX if it is set when a
target is created. This property is ignored on the Mac for
Frameworks and App Bundles.

ARCHIVE_OUTPUT_DIRECTORY
Output directory in which to build ARCHIVE target files.

This property specifies the directory into which archive target
files should be built. There are three kinds of target files
that may be built: archive, library, and runtime. Executables
are always treated as runtime targets. Static libraries are
always treated as archive targets. Module libraries are always
treated as library targets. For non-DLL platforms shared
libraries are treated as library targets. For DLL platforms the
DLL part of a shared library is treated as a runtime target and
the corresponding import library is treated as an archive tar‐
get. All Windows-based systems including Cygwin are DLL plat‐
forms. This property is initialized by the value of the variable
CMAKE_ARCHIVE_OUTPUT_DIRECTORY if it is set when a target is
created.

BUILD_WITH_INSTALL_RPATH
Should build tree targets have install tree rpaths.

BUILD_WITH_INSTALL_RPATH is a boolean specifying whether to link
the target in the build tree with the INSTALL_RPATH. This takes
precedence over SKIP_BUILD_RPATH and avoids the need for relink‐
ing before installation. This property is initialized by the
value of the variable CMAKE_BUILD_WITH_INSTALL_RPATH if it is
set when a target is created.

CLEAN_DIRECT_OUTPUT
Do not delete other variants of this target.

COMPILE_DEFINITIONS
Preprocessor definitions for compiling a target's sources.

CMake will automatically drop some definitions that are not sup‐
ported by the native build tool. The VS6 IDE does not support
definition values with spaces (but NMake does).

COMPILE_DEFINITIONS_<CONFIG>
Per-configuration preprocessor definitions on a target.

This is the configuration-specific version of COMPILE_DEFINI‐
TIONS.

COMPILE_FLAGS
Additional flags to use when compiling this target's sources.

The COMPILE_FLAGS property sets additional compiler flags used
to build sources within the target. Use COMPILE_DEFINITIONS to
pass additional preprocessor definitions.

DEBUG_POSTFIX
See target property <CONFIG>_POSTFIX.

This property is a special case of the more-general <CON‐
FIG>_POSTFIX property for the DEBUG configuration.

DEFINE_SYMBOL
Define a symbol when compiling this target's sources.

DEFINE_SYMBOL sets the name of the preprocessor symbol defined
when compiling sources in a shared library. If not set here then
it is set to target_EXPORTS by default (with some substitutions
if the target is not a valid C identifier). This is useful for
headers to know whether they are being included from inside
their library our outside to properly setup dllexport/dllimport
decorations.

ENABLE_EXPORTS
Specify whether an executable exports symbols for loadable mod‐
ules.

Normally an executable does not export any symbols because it is
the final program. It is possible for an executable to export
symbols to be used by loadable modules. When this property is
set to true CMake will allow other targets to "link" to the exe‐
cutable with the TARGET_LINK_LIBRARIES command. On all plat‐
forms a target-level dependency on the executable is created for
targets that link to it. For non-DLL platforms the link rule is
simply ignored since the dynamic loader will automatically bind
symbols when the module is loaded. For DLL platforms an import
library will be created for the exported symbols and then used
for linking. All Windows-based systems including Cygwin are DLL
platforms.

EXCLUDE_FROM_ALL
Exclude the target from the all target.

A property on a target that indicates if the target is excluded
from the default build target. If it is not, then with a Make‐
file for example typing make will cause this target to be built.
The same concept applies to the default build of other genera‐
tors. Installing a target with EXCLUDE_FROM_ALL set to true has
undefined behavior.

EchoString
A message to be displayed when the target is built.

A message to display on some generators (such as makefiles) when
the target is built.

FRAMEWORK
This target is a framework on the Mac.

If a shared library target has this property set to true it will
be built as a framework when built on the mac. It will have the
directory structure required for a framework and will be suit‐
able to be used with the -framework option

Fortran_MODULE_DIRECTORY
Specify output directory for Fortran modules provided by the
target.

If the target contains Fortran source files that provide modules
and the compiler supports a module output directory this speci‐
fies the directory in which the modules will be placed. When
this property is not set the modules will be placed in the build
directory corresponding to the target's source directory. If
the variable CMAKE_Fortran_MODULE_DIRECTORY is set when a target
is created its value is used to initialize this property.

GENERATOR_FILE_NAME
Generator's file for this target.

An internal property used by some generators to record the name
of project or dsp file associated with this target.

HAS_CXX
Force a target to use the CXX linker.

Setting HAS_CXX on a target will force the target to use the C++
linker (and C++ runtime libraries) for linking even if the tar‐
get has no C++ code in it.

IMPLICIT_DEPENDS_INCLUDE_TRANSFORM
Specify #include line transforms for dependencies in a target.

MYDIR(%)=<mydir/%>

will convert lines of the form

#include MYDIR(myheader.h)

#include <mydir/myheader.h>

allowing the dependency to be followed.

This property applies to sources in the target on which it is
set.

IMPORTED
Read-only indication of whether a target is IMPORTED.

The boolean value of this property is true for targets created
with the IMPORTED option to add_executable or add_library. It
is false for targets built within the project.

IMPORTED_CONFIGURATIONS
Configurations provided for an IMPORTED target.

Lists configuration names available for an IMPORTED target. The
names correspond to configurations defined in the project from
which the target is imported. If the importing project uses a
different set of configurations the names may be mapped using
the MAP_IMPORTED_CONFIG_<CONFIG> property. Ignored for
non-imported targets.

IMPORTED_IMPLIB
Full path to the import library for an IMPORTED target.

Specifies the location of the ".lib" part of a windows DLL.
Ignored for non-imported targets.

IMPORTED_IMPLIB_<CONFIG>
Per-configuration version of IMPORTED_IMPLIB property.

IMPORTED_LINK_DEPENDENT_LIBRARIES
Dependent shared libraries of an imported shared library.

Shared libraries may be linked to other shared libraries as part
of their implementation. On some platforms the linker searches
for the dependent libraries of shared libraries they are includ‐
ing in the link. This property lists the dependent shared
libraries of an imported library. The list should be disjoint
from the list of interface libraries in the IMPORTED_LINK_INTER‐
FACE_LIBRARIES property. On platforms requiring dependent
shared libraries to be found at link time CMake uses this list
to add appropriate files or paths to the link command line.
Ignored for non-imported targets.

IMPORTED_LINK_DEPENDENT_LIBRARIES_<CONFIG>
Per-configuration version of IMPORTED_LINK_DEPENDENT_LIBRARIES.

This property is used when loading settings for the <CONFIG>
configuration of an imported target. Configuration names corre‐
spond to those provided by the project from which the target is
imported. If set, this property completely overrides the
generic property for the named configuration.

IMPORTED_LINK_INTERFACE_LIBRARIES
Transitive link interface of an IMPORTED target.

Lists libraries whose interface is included when an IMPORTED
library target is linked to another target. The libraries will
be included on the link line for the target. Unlike the
LINK_INTERFACE_LIBRARIES property, this property applies to all
imported target types, including STATIC libraries. This prop‐
erty is ignored for non-imported targets.

IMPORTED_LINK_INTERFACE_LIBRARIES_<CONFIG>
Per-configuration version of IMPORTED_LINK_INTERFACE_LIBRARIES.

IMPORTED_LOCATION
Full path to the main file on disk for an IMPORTED target.

Specifies the location of an IMPORTED target file on disk. For
executables this is the location of the executable file. For
bundles on OS X this is the location of the executable file
inside Contents/MacOS under the application bundle folder. For
static libraries and modules this is the location of the library
or module. For shared libraries on non-DLL platforms this is
the location of the shared library. For frameworks on OS X this
is the location of the library file symlink just inside the
framework folder. For DLLs this is the location of the ".dll"
part of the library. For UNKNOWN libraries this is the location
of the file to be linked. Ignored for non-imported targets.

IMPORTED_LOCATION_<CONFIG>
Per-configuration version of IMPORTED_LOCATION property.

IMPORTED_SONAME
The "soname" of an IMPORTED target of shared library type.

Specifies the "soname" embedded in an imported shared library.
This is meaningful only on platforms supporting the feature.
Ignored for non-imported targets.

IMPORTED_SONAME_<CONFIG>
Per-configuration version of IMPORTED_SONAME property.

IMPORT_PREFIX
What comes before the import library name.

Similar to the target property PREFIX, but used for import
libraries (typically corresponding to a DLL) instead of regular
libraries. A target property that can be set to override the
prefix (such as "lib") on an import library name.

IMPORT_SUFFIX
What comes after the import library name.

Similar to the target property SUFFIX, but used for import
libraries (typically corresponding to a DLL) instead of regular
libraries. A target property that can be set to override the
suffix (such as ".lib") on an import library name.

INSTALL_NAME_DIR
Mac OSX directory name for installed targets.

INSTALL_NAME_DIR is a string specifying the directory portion of
the "install_name" field of shared libraries on Mac OSX to use
in the installed targets.

INSTALL_RPATH
The rpath to use for installed targets.

A semicolon-separated list specifying the rpath to use in
installed targets (for platforms that support it). This prop‐
erty is initialized by the value of the variable
CMAKE_INSTALL_RPATH if it is set when a target is created.

INSTALL_RPATH_USE_LINK_PATH
Add paths to linker search and installed rpath.

INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to true
will append directories in the linker search path and outside
the project to the INSTALL_RPATH. This property is initialized
by the value of the variable CMAKE_INSTALL_RPATH_USE_LINK_PATH
if it is set when a target is created.

LIBRARY_OUTPUT_DIRECTORY
Output directory in which to build LIBRARY target files.

This property specifies the directory into which library target
files should be built. There are three kinds of target files
that may be built: archive, library, and runtime. Executables
are always treated as runtime targets. Static libraries are
always treated as archive targets. Module libraries are always
treated as library targets. For non-DLL platforms shared
libraries are treated as library targets. For DLL platforms the
DLL part of a shared library is treated as a runtime target and
the corresponding import library is treated as an archive tar‐
get. All Windows-based systems including Cygwin are DLL plat‐
forms. This property is initialized by the value of the variable
CMAKE_LIBRARY_OUTPUT_DIRECTORY if it is set when a target is
created.

LINKER_LANGUAGE
What tool to use for linking, based on language.

LINK_FLAGS
Additional flags to use when linking this target.

LINK_FLAGS_<CONFIG>
Per-configuration linker flags for a target.

This is the configuration-specific version of LINK_FLAGS.

LINK_INTERFACE_LIBRARIES
List public interface libraries for a shared library or exe‐
cutable.

By default linking to a shared library target transitively links
to targets with which the library itself was linked. For an
executable with exports (see the ENABLE_EXPORTS property) no
default transitive link dependencies are used. This property
replaces the default transitive link dependencies with an
explict list. When the target is linked into another target the
libraries listed (and recursively their link interface
libraries) will be provided to the other target also. If the
list is empty then no transitive link dependencies will be
incorporated when this target is linked into another target even
if the default set is non-empty. This property is ignored for
STATIC libraries.

LINK_INTERFACE_LIBRARIES_<CONFIG>
Per-configuration list of public interface libraries for a tar‐
get.

This is the configuration-specific version of LINK_INTER‐
FACE_LIBRARIES. If set, this property completely overrides the
generic property for the named configuration.

LINK_SEARCH_END_STATIC
End a link line such that static system libraries are used.

Some linkers support switches such as -Bstatic and -Bdynamic to
determine whether to use static or shared libraries for -lXXX
options. CMake uses these options to set the link type for
libraries whose full paths are not known or (in some cases) are
in implicit link directories for the platform. By default the
linker search type is left at -Bdynamic by the end of the
library list. This property switches the final linker search
type to -Bstatic.

LOCATION
Read-only location of a target on disk.

For an imported target, this read-only property returns the
value of the LOCATION_<CONFIG> property for an unspecified con‐
figuration <CONFIG> provided by the target.

For a non-imported target, this property is provided for compat‐
ibility with CMake 2.4 and below. It was meant to get the loca‐
tion of an executable target's output file for use in add_cus‐
tom_command. The path may contain a build-system-specific por‐
tion that is replaced at build time with the configuration get‐
ting built (such as "$(ConfigurationName)" in VS). In CMake 2.6
and above add_custom_command automatically recognizes a target
name in its COMMAND and DEPENDS options and computes the target
location. Therefore this property is not needed for creating
custom commands.

LOCATION_<CONFIG>
Read-only property providing a target location on disk.

A read-only property that indicates where a target's main file
is located on disk for the configuration <CONFIG>. The property
is defined only for library and executable targets. An imported
target may provide a set of configurations different from that
of the importing project. By default CMake looks for an
exact-match but otherwise uses an arbitrary available configura‐
tion. Use the MAP_IMPORTED_CONFIG_<CONFIG> property to map
imported configurations explicitly.

MACOSX_BUNDLE
Build an executable as an application bundle on Mac OS X.

When this property is set to true the executable when built on
Mac OS X will be created as an application bundle. This makes
it a GUI executable that can be launched from the Finder. See
the MACOSX_BUNDLE_INFO_PLIST target property for information
about creation of the Info.plist file for the application bun‐
dle.

MACOSX_BUNDLE_INFO_PLIST
Specify a custom Info.plist template for a Mac OS X App Bundle.

An executable target with MACOSX_BUNDLE enabled will be built as
an application bundle on Mac OS X. By default its Info.plist
file is created by configuring a template called MacOSXBundle‐
Info.plist.in located in the CMAKE_MODULE_PATH. This property
specifies an alternative template file name which may be a full
path.

The following target properties may be set to specify content to
be configured into the file:

MACOSX_BUNDLE_INFO_STRING
MACOSX_BUNDLE_ICON_FILE
MACOSX_BUNDLE_GUI_IDENTIFIER
MACOSX_BUNDLE_LONG_VERSION_STRING
MACOSX_BUNDLE_BUNDLE_NAME
MACOSX_BUNDLE_SHORT_VERSION_STRING
MACOSX_BUNDLE_BUNDLE_VERSION
MACOSX_BUNDLE_COPYRIGHT

CMake variables of the same name may be set to affect all tar‐
gets in a directory that do not have each specific property set.
If a custom Info.plist is specified by this property it may of
course hard-code all the settings instead of using the target
properties.

MACOSX_FRAMEWORK_INFO_PLIST
Specify a custom Info.plist template for a Mac OS X Framework.

An library target with FRAMEWORK enabled will be built as a
framework on Mac OS X. By default its Info.plist file is cre‐
ated by configuring a template called MacOSXFramework‐
Info.plist.in located in the CMAKE_MODULE_PATH. This property
specifies an alternative template file name which may be a full
path.

The following target properties may be set to specify content to
be configured into the file:

MACOSX_FRAMEWORK_ICON_FILE
MACOSX_FRAMEWORK_IDENTIFIER
MACOSX_FRAMEWORK_SHORT_VERSION_STRING
MACOSX_FRAMEWORK_BUNDLE_VERSION

MAP_IMPORTED_CONFIG_<CONFIG>
Map from project configuration to IMPORTED target's configura‐
tion.

List configurations of an imported target that may be used for
the current project's <CONFIG> configuration. Targets imported
from another project may not provide the same set of configura‐
tion names available in the current project. Setting this prop‐
erty tells CMake what imported configurations are suitable for
use when building the <CONFIG> configuration. The first config‐
uration in the list found to be provided by the imported target
is selected. If no matching configurations are available the
imported target is considered to be not found. This property is
ignored for non-imported targets.

OUTPUT_NAME
Sets the real name of a target when it is built.

Sets the real name of a target when it is built and can be used
to help create two targets of the same name even though CMake
requires unique logical target names. There is also a <CON‐
FIG>_OUTPUT_NAME that can set the output name on a per-configu‐
ration basis.

POST_INSTALL_SCRIPT
Deprecated install support.

PREFIX What comes before the library name.

A target property that can be set to override the prefix (such
as "lib") on a library name.

PRE_INSTALL_SCRIPT
Deprecated install support.

PRIVATE_HEADER
Specify private header files in a FRAMEWORK shared library tar‐
get.

Shared library targets marked with the FRAMEWORK property gener‐
ate frameworks on OS X and normal shared libraries on other
platforms. This property may be set to a list of header files
to be placed in the PrivateHeaders directory inside the frame‐
work folder. On non-Apple platforms these headers may be
installed using the PRIVATE_HEADER option to the install(TAR‐
GETS) command.

PROJECT_LABEL
Change the name of a target in an IDE.

Can be used to change the name of the target in an IDE like vis‐
ual stuido.

PUBLIC_HEADER
Specify public header files in a FRAMEWORK shared library tar‐
get.

Shared library targets marked with the FRAMEWORK property gener‐
ate frameworks on OS X and normal shared libraries on other
platforms. This property may be set to a list of header files
to be placed in the Headers directory inside the framework
folder. On non-Apple platforms these headers may be installed
using the PUBLIC_HEADER option to the install(TARGETS) command.

RESOURCE
Specify resource files in a FRAMEWORK shared library target.

Shared library targets marked with the FRAMEWORK property gener‐
ate frameworks on OS X and normal shared libraries on other
platforms. This property may be set to a list of files to be
placed in the Resources directory inside the framework folder.
On non-Apple platforms these files may be installed using the
RESOURCE option to the install(TARGETS) command.

RUNTIME_OUTPUT_DIRECTORY
Output directory in which to build RUNTIME target files.

This property specifies the directory into which runtime target
files should be built. There are three kinds of target files
that may be built: archive, library, and runtime. Executables
are always treated as runtime targets. Static libraries are
always treated as archive targets. Module libraries are always
treated as library targets. For non-DLL platforms shared
libraries are treated as library targets. For DLL platforms the
DLL part of a shared library is treated as a runtime target and
the corresponding import library is treated as an archive tar‐
get. All Windows-based systems including Cygwin are DLL plat‐
forms. This property is initialized by the value of the variable
CMAKE_RUNTIME_OUTPUT_DIRECTORY if it is set when a target is
created.

SKIP_BUILD_RPATH
Should rpaths be used for the build tree.

SKIP_BUILD_RPATH is a boolean specifying whether to skip auto‐
matic generation of an rpath allowing the target to run from the
build tree. This property is initialized by the value of the
variable CMAKE_SKIP_BUILD_RPATH if it is set when a target is
created.

SOURCES
Source names specified for a target.

Read-only list of sources specified for a target. The names
returned are suitable for passing to the set_source_files_prop‐
erties command.

SOVERSION
What version number is this target.

For shared libraries VERSION and SOVERSION can be used to spec‐
ify the build version and api version respectively. When build‐
ing or installing appropriate symlinks are created if the plat‐
form supports symlinks and the linker supports so-names. If only
one of both is specified the missing is assumed to have the same
version number. For shared libraries and executables on Windows
the VERSION attribute is parsed to extract a "major.minor" ver‐
sion number. These numbers are used as the image version of the
binary.

STATIC_LIBRARY_FLAGS
Extra flags to use when linking static libraries.

Extra flags to use when linking a static library.

SUFFIX What comes after the library name.

A target property that can be set to override the suffix (such
as ".so") on a library name.

TYPE The type of the target.

This read-only property can be used to test the type of the
given target. It will be one of STATIC_LIBRARY, MODULE_LIBRARY,
SHARED_LIBRARY, EXECUTABLE or one of the internal target types.

VERSION
What version number is this target.

VS_KEYWORD
Visual Studio project keyword.

Can be set to change the visual studio keyword, for example QT
integration works better if this is set to Qt4VSv1.0.

VS_SCC_LOCALPATH
Visual Studio Source Code Control Provider.

Can be set to change the visual studio source code control local
path property.

VS_SCC_PROJECTNAME
Visual Studio Source Code Control Project.

Can be set to change the visual studio source code control
project name property.

VS_SCC_PROVIDER
Visual Studio Source Code Control Provider.

Can be set to change the visual studio source code control
provider property.

WIN32_EXECUTABLE
Build an executable with a WinMain entry point on windows.

When this property is set to true the executable when linked on
Windows will be created with a WinMain() entry point instead of
of just main().This makes it a GUI executable instead of a con‐
sole application. See the CMAKE_MFC_FLAG variable documentation
to configure use of MFC for WinMain executables.

XCODE_ATTRIBUTE_<an-attribute>
Set Xcode target attributes directly.

Tell the Xcode generator to set '<an-attribute>' to a given
value in the generated Xcode project. Ignored on other genera‐
tors.

PROPERTIES ON TESTS
FAIL_REGULAR_EXPRESSION
If the output matches this regular expression the test will
fail.

If set, if the output matches one of specified regular expres‐
sions, the test will fail.For example: PASS_REGULAR_EXPRESSION
"[^a-z]Error;ERROR;Failed"

MEASUREMENT
Specify a DART measurement and value to be reported for a test.

If set to a name then that name will be reported to DART as a
named measurement with a value of 1. You may also specify a
value by setting MEASUREMENT to "measurement=value".

PASS_REGULAR_EXPRESSION
The output must match this regular expression for the test to
pass.

If set, the test output will be checked against the specified
regular expressions and at least one of the regular expressions
has to match, otherwise the test will fail.

TIMEOUT
How many seconds to allow for this test.

This property if set will limit a test to not take more than the
specified number of seconds to run. If it exceeds that the test
process will be killed and ctest will move to the next test.
This setting takes precedence over DART_TESTING_TIMEOUT and
CTEST_TESTING_TIMEOUT.

WILL_FAIL
If set to true, this will invert the pass/fail flag of the test.

This property can be used for tests that are expected to fail
and return a non zero return code.

PROPERTIES ON SOURCE FILES
ABSTRACT
Is this source file an abstract class.

A property on a source file that indicates if the source file
represents a class that is abstract. This only makes sense for
languages that have a notion of an abstract class and it is only
used by some tools that wrap classes into other languages.

COMPILE_DEFINITIONS
Preprocessor definitions for compiling a source file.

CMake will automatically drop some definitions that are not sup‐
ported by the native build tool. The VS6 IDE does not support
definition values with spaces (but NMake does). Xcode does not
support per-configuration definitions on source files.

COMPILE_DEFINITIONS_<CONFIG>
Per-configuration preprocessor definitions on a source file.

This is the configuration-specific version of COMPILE_DEFINI‐
TIONS. Note that Xcode does not support per-configuration
source file flags so this property will be ignored by the Xcode
generator.

COMPILE_FLAGS
Additional flags to be added when compiling this source file.

These flags will be added to the list of compile flags when this
source file builds. Use COMPILE_DEFINITIONS to pass additional
preprocessor definitions.

EXTERNAL_OBJECT
If set to true then this is an object file.

If this property is set to true then the source file is really
an object file and should not be compiled. It will still be
linked into the target though.

GENERATED
Is this source file generated as part of the build process.

If a source file is generated by the build process CMake will
handle it differently in temrs of dependency checking etc. Oth‐
erwise having a non-existent source file could create problems.

HEADER_FILE_ONLY
Is this source file only a header file.

A property on a source file that indicates if the source file is
a header file with no associated implementation. This is set
automatically based on the file extension and is used by CMake
to determine is certain dependency information should be com‐
puted.

KEEP_EXTENSION
Make the output file have the same extension as the source file.

If this property is set then the file extension of the output
file will be the same as that of the source file. Normally the
output file extension is computed based on the language of the
source file, for example .cxx will go to a .o extension.

LANGUAGE
What programming language is the file.

A property that can be set to indicate what programming language
the source file is. If it is not set the language is determined
based on the file extension. Typical values are CXX C etc.

LOCATION
The full path to a source file.

A read only property on a SOURCE FILE that contains the full
path to the source file.

MACOSX_PACKAGE_LOCATION
Place a source file inside a Mac OS X bundle or framework.

Executable targets with the MACOSX_BUNDLE property set are built
as Mac OS X application bundles on Apple platforms. Shared
library targets with the FRAMEWORK property set are built as Mac
OS X frameworks on Apple platforms. Source files listed in the
target with this property set will be copied to a directory
inside the bundle or framework content folder specified by the
property value. For bundles the content folder is
"<name>.app/Contents". For frameworks the content folder is
"<name>.framework/Versions/<version>". See the PUBLIC_HEADER,
PRIVATE_HEADER, and RESOURCE target properties for specifying
files meant for Headers, PrivateHeadres, or Resources directo‐
ries.

OBJECT_DEPENDS
Additional files on which a compiled object file depends.

Specifies a semicolon-separated list of full-paths to files on
which any object files compiled from this source file depend.
An object file will be recompiled if any of the named files is
newer than it.

This property need not be used to specify the dependency of a
source file on a generated header file that it includes.
Although the property was originally introduced for this pur‐
pose, it is no longer necessary. If the generated header file
is created by a custom command in the same target as the source
file, the automatic dependency scanning process will recognize
the dependency. If the generated header file is created by
another target, an inter-target dependency should be created
with the add_dependencies command (if one does not already exist
due to linking relationships).

OBJECT_OUTPUTS
Additional outputs for a Makefile rule.

Additional outputs created by compilation of this source file.
If any of these outputs is missing the object will be recom‐
piled. This is supported only on Makefile generators and will be
ignored on other generators.

SYMBOLIC
Is this just a name for a rule.

If SYMBOLIC (boolean) is set to true the build system will be
informed that the source file is not actually created on disk
but instead used as a symbolic name for a build rule.

WRAP_EXCLUDE
Exclude this source file from any code wrapping techniques.

Some packages can wrap source files into alternate languages to
provide additional functionality. For example, C++ code can be
wrapped into Java or Python etc using SWIG etc. If WRAP_EXCLUDE
is set to true (1 etc) that indicates then this source file
should not be wrapped.

COMPATIBILITY COMMANDS
CMake Compatibility Listfile Commands - Obsolete commands supported by CMake for compatibility.

This is the documentation for now obsolete listfile commands from pre‐
vious CMake versions, which are still supported for compatibility rea‐
sons. You should instead use the newer, faster and shinier new com‐
mands. ;-)

build_name
Deprecated. Use ${CMAKE_SYSTEM} and ${CMAKE_CXX_COMPILER}
instead.

build_name(variable)

Sets the specified variable to a string representing the plat‐
form and compiler settings. These values are now available
through the CMAKE_SYSTEM and CMAKE_CXX_COMPILER variables.

exec_program
Deprecated. Use the execute_process() command instead.

Run an executable program during the processing of the CMake‐
List.txt file.

exec_program(Executable [directory in which to run]
[ARGS <arguments to executable>]
[OUTPUT_VARIABLE <var>]
[RETURN_VALUE <var>])

The executable is run in the optionally specified directory.
The executable can include arguments if it is double quoted, but
it is better to use the optional ARGS argument to specify argu‐
ments to the program. This is because cmake will then be able
to escape spaces in the executable path. An optional argument
OUTPUT_VARIABLE specifies a variable in which to store the out‐
put. To capture the return value of the execution, provide a
RETURN_VALUE. If OUTPUT_VARIABLE is specified, then no output
will go to the stdout/stderr of the console running cmake.

export_library_dependencies
Deprecated. Use INSTALL(EXPORT) or EXPORT command.

This command generates an old-style library dependencies file.
Projects requiring CMake 2.6 or later should not use the com‐
mand. Use instead the install(EXPORT) command to help export
targets from an installation tree and the export() command to
export targets from a build tree.

The old-style library dependencies file does not take into
account per-configuration names of libraries or the LINK_INTER‐
FACE_LIBRARIES target property.

export_library_dependencies(<file> [APPEND])

Create a file named <file> that can be included into a CMake
listfile with the INCLUDE command. The file will contain a num‐
ber of SET commands that will set all the variables needed for
library dependency information. This should be the last command
in the top level CMakeLists.txt file of the project. If the
APPEND option is specified, the SET commands will be appended to
the given file instead of replacing it.

install_files
Deprecated. Use the install(FILES ) command instead.

This command has been superceded by the install command. It is
provided for compatibility with older CMake code. The FILES
form is directly replaced by the FILES form of the install com‐
mand. The regexp form can be expressed more clearly using the
GLOB form of the file command.

install_files(<dir> extension file file ...)

Create rules to install the listed files with the given exten‐
sion into the given directory. Only files existing in the cur‐
rent source tree or its corresponding location in the binary
tree may be listed. If a file specified already has an exten‐
sion, that extension will be removed first. This is useful for
providing lists of source files such as foo.cxx when you want
the corresponding foo.h to be installed. A typical extension is
'.h'.

install_files(<dir> regexp)

Any files in the current source directory that match the regular
expression will be installed.

install_files(<dir> FILES file file ...)

Any files listed after the FILES keyword will be installed
explicitly from the names given. Full paths are allowed in this
form.

The directory <dir> is relative to the installation prefix,
which is stored in the variable CMAKE_INSTALL_PREFIX.

install_programs
Deprecated. Use the install(PROGRAMS ) command instead.

This command has been superceded by the install command. It is
provided for compatibility with older CMake code. The FILES
form is directly replaced by the PROGRAMS form of the INSTALL
command. The regexp form can be expressed more clearly using
the GLOB form of the FILE command.

install_programs(<dir> file1 file2 [file3 ...])
install_programs(<dir> FILES file1 [file2 ...])

Create rules to install the listed programs into the given
directory. Use the FILES argument to guarantee that the file
list version of the command will be used even when there is only
one argument.

install_programs(<dir> regexp)

In the second form any program in the current source directory
that matches the regular expression will be installed.

This command is intended to install programs that are not built
by cmake, such as shell scripts. See the TARGETS form of the
INSTALL command to create installation rules for targets built
by cmake.

The directory <dir> is relative to the installation prefix,
which is stored in the variable CMAKE_INSTALL_PREFIX.

install_targets
Deprecated. Use the install(TARGETS ) command instead.

This command has been superceded by the install command. It is
provided for compatibility with older CMake code.

install_targets(<dir> [RUNTIME_DIRECTORY dir] target target)

Create rules to install the listed targets into the given direc‐
tory. The directory <dir> is relative to the installation pre‐
fix, which is stored in the variable CMAKE_INSTALL_PREFIX. If
RUNTIME_DIRECTORY is specified, then on systems with special
runtime files (Windows DLL), the files will be copied to that
directory.

link_libraries
Deprecated. Use the target_link_libraries() command instead.

Link libraries to all targets added later.

link_libraries(library1 <debug | optimized> library2 ...)

Specify a list of libraries to be linked into any following tar‐
gets (typically added with the add_executable or add_library
calls). This command is passed down to all subdirectories. The
debug and optimized strings may be used to indicate that the
next library listed is to be used only for that specific type of
build.

make_directory
Deprecated. Use the file(MAKE_DIRECTORY ) command instead.

make_directory(directory)

Creates the specified directory. Full paths should be given.
Any parent directories that do not exist will also be created.
Use with care.

remove Deprecated. Use the list(REMOVE_ITEM ) command instead.

remove(VAR VALUE VALUE ...)

Removes VALUE from the variable VAR. This is typically used to
remove entries from a vector (e.g. semicolon separated list).
VALUE is expanded.

subdir_depends
Deprecated. Does nothing.

subdir_depends(subdir dep1 dep2 ...)

Does not do anything. This command used to help projects order
parallel builds correctly. This functionality is now automatic.

subdirs
Deprecated. Use the add_subdirectory() command instead.

Add a list of subdirectories to the build.

subdirs(dir1 dir2 ...[EXCLUDE_FROM_ALL exclude_dir1 exclude_dir2 ...] [PREORDER] )

Add a list of subdirectories to the build. The add_subdirectory
command should be used instead of subdirs although subdirs will
still work. This will cause any CMakeLists.txt files in the sub
directories to be processed by CMake. Any directories after the
PREORDER flag are traversed first by makefile builds, the PRE‐
ORDER flag has no effect on IDE projects. Any directories after
the EXCLUDE_FROM_ALL marker will not be included in the top
level makefile or project file. This is useful for having CMake
create makefiles or projects for a set of examples in a project.
You would want CMake to generate makefiles or project files for
all the examples at the same time, but you would not want them
to show up in the top level project or be built each time make
is run from the top.

use_mangled_mesa
Copy mesa headers for use in combination with system GL.

use_mangled_mesa(PATH_TO_MESA OUTPUT_DIRECTORY)

The path to mesa includes, should contain gl_mangle.h. The mesa
headers are copied to the specified output directory. This
allows mangled mesa headers to override other GL headers by
being added to the include directory path earlier.

utility_source
Specify the source tree of a third-party utility.

utility_source(cache_entry executable_name
path_to_source [file1 file2 ...])

When a third-party utility's source is included in the distribu‐
tion, this command specifies its location and name. The cache
entry will not be set unless the path_to_source and all listed
files exist. It is assumed that the source tree of the utility
will have been built before it is needed.

When cross compiling CMake will print a warning if a util‐
ity_source() command is executed, because in many cases it is
used to build an executable which is executed later on. This
doesn't work when cross compiling, since the executable can run
only on their target platform. So in this case the cache entry
has to be adjusted manually so it points to an executable which
is runnable on the build host.

variable_requires
Deprecated. Use the if() command instead.

Assert satisfaction of an option's required variables.

variable_requires(TEST_VARIABLE RESULT_VARIABLE
REQUIRED_VARIABLE1
REQUIRED_VARIABLE2 ...)

The first argument (TEST_VARIABLE) is the name of the variable
to be tested, if that variable is false nothing else is done. If
TEST_VARIABLE is true, then the next argument (RESULT_VARIABLE)
is a variable that is set to true if all the required variables
are set. The rest of the arguments are variables that must be
true or not set to NOTFOUND to avoid an error. If any are not
true, an error is reported.

write_file
Deprecated. Use the file(WRITE ) command instead.

write_file(filename "message to write"... [APPEND])

The first argument is the file name, the rest of the arguments
are messages to write. If the argument APPEND is specified, then
the message will be appended.

NOTE 1: file(WRITE ... and file(APPEND ... do exactly the same
as this one but add some more functionality.

NOTE 2: When using write_file the produced file cannot be used
as an input to CMake (CONFIGURE_FILE, source file ...) because
it will lead to an infinite loop. Use configure_file if you want
to generate input files to CMake.

MODULES
The following modules are provided with CMake. They can be used with
INCLUDE(ModuleName).

CMake Modules - Modules coming with CMake, the Cross-Platform Makefile Generator.

This is the documentation for the modules and scripts coming with
CMake. Using these modules you can check the computer system for
installed software packages, features of the compiler and the existance
of headers to name just a few.

AddFileDependencies
ADD_FILE_DEPENDENCIES(source_file depend_files...)

Adds the given files as dependencies to source_file

BundleUtilities

BundleUtilities.cmake

A collection of CMake utility functions useful for dealing with
.app bundles on the Mac and bundle-like directories on any OS.

The following functions are provided by this script:

get_bundle_main_executable
get_dotapp_dir
get_bundle_and_executable
get_bundle_all_executables
get_item_key
clear_bundle_keys
set_bundle_key_values
get_bundle_keys
copy_resolved_item_into_bundle
fixup_bundle_item
fixup_bundle
copy_and_fixup_bundle
verify_bundle_prerequisites
verify_bundle_symlinks
verify_app

Requires CMake 2.6 or greater because it uses function, break
and PARENT_SCOPE. Also depends on GetPrerequisites.cmake.

CMakeASM-ATTInformation

support for AT&T syntax assemblers, e.g. GNU as

CMakeASM_MASMInformation

support for the MS assembler, masm and masm64

CMakeBackwardCompatibilityCXX
define a bunch of backwards compatibility variables

CMAKE_ANSI_CXXFLAGS - flag for ansi c++
CMAKE_HAS_ANSI_STRING_STREAM - has <strstream>
INCLUDE(TestForANSIStreamHeaders)
INCLUDE(CheckIncludeFileCXX)
INCLUDE(TestForSTDNamespace)
INCLUDE(TestForANSIForScope)

CMakeDependentOption
Macro to provide an option dependent on other options.

This macro presents an option to the user only if a set of other
conditions are true. When the option is not presented a default
value is used, but any value set by the user is preserved for
when the option is presented again. Example invocation:

CMAKE_DEPENDENT_OPTION(USE_FOO "Use Foo" ON
"USE_BAR;NOT USE_ZOT" OFF)

If USE_BAR is true and USE_ZOT is false, this provides an option
called USE_FOO that defaults to ON. Otherwise, it sets USE_FOO
to OFF. If the status of USE_BAR or USE_ZOT ever changes, any
value for the USE_FOO option is saved so that when the option is
re-enabled it retains its old value.

CMakeDetermineASM-ATTCompiler

determine the compiler to use for ASM using AT&T syntax, e.g.
GNU as

CMakeDetermineASMCompiler

determine the compiler to use for ASM programs

CMakeDetermineASM_MASMCompiler

Find the MS assembler (masm or masm64)

CMakeExportBuildSettings
export build settings from a project.

CMAKE_EXPORT_BUILD_SETTINGS(SETTINGS_FILE)

macro defined to export the build settings for use by another
project.

SETTINGS_FILE - the file into which the settings are to be stored.

CMakeFindFrameworks
helper module to find OSX frameworks

CMakeForceCompiler

This module defines macros intended for use by cross-compiling
toolchain files when CMake is not able to automatically detect
the compiler identification.

Macro CMAKE_FORCE_C_COMPILER has the following signature:

CMAKE_FORCE_C_COMPILER(<compiler> <compiler-id>)

It sets CMAKE_C_COMPILER to the given compiler and the cmake
internal variable CMAKE_C_COMPILER_ID to the given compiler-id.
It also bypasses the check for working compiler and basic com‐
piler information tests.

Macro CMAKE_FORCE_CXX_COMPILER has the following signature:

CMAKE_FORCE_CXX_COMPILER(<compiler> <compiler-id>)

It sets CMAKE_CXX_COMPILER to the given compiler and the cmake
internal variable CMAKE_CXX_COMPILER_ID to the given com‐
piler-id. It also bypasses the check for working compiler and
basic compiler information tests.

So a simple toolchain file could look like this:

INCLUDE (CMakeForceCompiler)
SET(CMAKE_SYSTEM_NAME Generic)
CMAKE_FORCE_C_COMPILER (chc12 MetrowerksHicross)
CMAKE_FORCE_CXX_COMPILER (chc12 MetrowerksHicross)

CMakeImportBuildSettings
import build settings from another project

CMAKE_IMPORT_BUILD_SETTINGS(SETTINGS_FILE)

macro defined to import the build settings from another project.
SETTINGS_FILE is a file created by the other project's call to
the CMAKE_EXPORT_BUILD_SETTINGS macro, see CMakeExportBuildSet‐
tings.

CMakeJavaInformation

This should be included before the _INIT variables are used to
initialize the cache. Since the rule variables have if blocks
on them, users can still define them here. But, it should still
be after the platform file so changes can be made to those val‐
ues.

CMakePrintSystemInformation
print system information

This file can be used for diagnostic purposes just include it in
a project to see various internal CMake variables.

CPack Build binary and source package installers

The CPack module generates binary and source installers in a
variety of formats using the cpack program. Inclusion of the
CPack module adds two new targets to the resulting makefiles,
package and package_source, which build the binary and source
installers, respectively. The generated binary installers con‐
tain everything installed via CMake's INSTALL command (and the
deprecated INSTALL_FILES, INSTALL_PROGRAMS, and INSTALL_TARGETS
commands).

For certain kinds of binary installers (including the graphical
installers on Mac OS X and Windows), CPack generates installers
that allow users to select individual application components to
install. The contents of each of the components are identified
by the COMPONENT argument of CMake's INSTALL command. These com‐
ponents can be annotated with user-friendly names and descrip‐
tions, inter-component dependencies, etc., and grouped in vari‐
ous ways to customize the resulting installer. See the
cpack_add_* commands, described below, for more information
about component-specific installations.

Before including the CPack module, there are a variety of vari‐
ables that can be set to customize the resulting installers. The
most commonly-used variables are:

CPACK_PACKAGE_NAME - The name of the package (or application). If
not specified, defaults to the project name.

CPACK_PACKAGE_VENDOR - The name of the package vendor (e.g.,
"Kitware").

CPACK_PACKAGE_VERSION_MAJOR - Package major Version

CPACK_PACKAGE_VERSION_MINOR - Package minor Version

CPACK_PACKAGE_VERSION_PATCH - Package patch Version

CPACK_PACKAGE_DESCRIPTION_FILE - A text file used to describe the
project. Used, for example, the introduction screen of a
CPack-generated Windows installer to describe the project.

CPACK_PACKAGE_DESCRIPTION_SUMMARY - Short description of the
project (only a few words).

CPACK_PACKAGE_FILE_NAME - The name of the package file to generate,
not including the extension. For example, cmake-2.6.1-Linux-i686.

CPACK_PACKAGE_INSTALL_DIRECTORY - Installation directory on the
target system, e.g., "CMake 2.5".

CPACK_RESOURCE_FILE_LICENSE - License file for the project, which
will typically be displayed to the user (often with an explicit
"Accept" button, for graphical installers) prior to installation.

CPACK_RESOURCE_FILE_README - ReadMe file for the project, which
typically describes in some detail

CPACK_RESOURCE_FILE_WELCOME - Welcome file for the project, which
welcomes users to this installer. Typically used in the graphical
installers on Windows and Mac OS X.

CPACK_MONOLITHIC_INSTALL - Disables the component-based
installation mechanism, so that all components are always installed.

CPACK_GENERATOR - List of CPack generators to use. If not
specified, CPack will create a set of options (e.g.,
CPACK_BINARY_NSIS) allowing the user to enable/disable individual
generators.

CPACK_OUTPUT_CONFIG_FILE - The name of the CPack configuration file
for binary installers that will be generated by the CPack
module. Defaults to CPackConfig.cmake.

CPACK_PACKAGE_EXECUTABLES - Lists each of the executables along
with a text label, to be used to create Start Menu shortcuts on
Windows. For example, setting this to the list ccmake;CMake will
create a shortcut named "CMake" that will execute the installed
executable ccmake.

CPACK_STRIP_FILES - List of files to be stripped. Starting with
CMake 2.6.0 CPACK_STRIP_FILES will be a boolean variable which
enables stripping of all files (a list of files evaluates to TRUE
in CMake, so this change is compatible).

The following CPack variables are specific to source packages,
and will not affect binary packages:

CPACK_SOURCE_PACKAGE_FILE_NAME - The name of the source package,
e.g., cmake-2.6.1

CPACK_SOURCE_STRIP_FILES - List of files in the source tree that
will be stripped. Starting with CMake 2.6.0
CPACK_SOURCE_STRIP_FILES will be a boolean variable which enables
stripping of all files (a list of files evaluates to TRUE in CMake,
so this change is compatible).

CPACK_SOURCE_GENERATOR - List of generators used for the source
packages. As with CPACK_GENERATOR, if this is not specified then
CPack will create a set of options (e.g., CPACK_SOURCE_ZIP)
allowing users to select which packages will be generated.

CPACK_SOURCE_OUTPUT_CONFIG_FILE - The name of the CPack
configuration file for source installers that will be generated by
the CPack module. Defaults to CPackSourceConfig.cmake.

CPACK_SOURCE_IGNORE_FILES - Pattern of files in the source tree
that won't be packaged when building a source package. This is a
list of patterns, e.g., /CVS/;/\\.svn/;\\.swp$;\\.#;/#;.*~;cscope.*

The following variables are specific to the graphical installers
built on Windows using the Nullsoft Installation System.

CPACK_PACKAGE_INSTALL_REGISTRY_KEY - Registry key used when
installing this project.

CPACK_NSIS_MUI_ICON - The icon file (.ico) for the generated
install program.

CPACK_NSIS_MUI_UNIICON - The icon file (.ico) for the generated
uninstall program.

CPACK_PACKAGE_ICON - A branding image that will be displayed inside
the installer.

CPACK_NSIS_EXTRA_INSTALL_COMMANDS - Extra NSIS commands that will
be added to the install Section.

CPACK_NSIS_EXTRA_UNINSTALL_COMMANDS - Extra NSIS commands that will
be added to the uninstall Section.

CPACK_NSIS_COMPRESSOR - The arguments that will be passed to the
NSIS SetCompressor command.

CPACK_NSIS_MODIFY_PATH - If this is set to "ON", then an extra page
will appear in the installer that will allow the user to choose
whether the program directory should be added to the system PATH
variable.

CPACK_NSIS_DISPLAY_NAME - The title displayed at the top of the
installer.

CPACK_NSIS_INSTALLED_ICON_NAME - A path to the executable that
contains the installer icon.

CPACK_NSIS_HELP_LINK - URL to a web site providing assistance in
installing your application.

CPACK_NSIS_URL_INFO_ABOUT - URL to a web site providing more
information about your application.

CPACK_NSIS_CONTACT - Contact information for questions and comments
about the installation process.

CPACK_NSIS_CREATE_ICONS_EXTRA - Additional NSIS commands for
creating start menu shortcuts.

CPACK_NSIS_DELETE_ICONS_EXTRA -Additional NSIS commands to
uninstall start menu shortcuts.

The following variable is specific to installers build on Mac OS
X using PackageMaker:

CPACK_OSX_PACKAGE_VERSION - The version of Mac OS X that the
resulting PackageMaker archive should be compatible
with. Different versions of Mac OS X support different
features. For example, CPack can only build component-based
installers for Mac OS X 10.4 or newer, and can only build
installers that download component son-the-fly for Mac OS X 10.5
or newer. If left blank, this value will be set to the minimum
version of Mac OS X that supports the requested features. Set this
variable to some value (e.g., 10.4) only if you want to guarantee
that your installer will work on that version of Mac OS X, and
don't mind missing extra features available in the installer
shipping with later versions of Mac OS X.

The following variables are for advanced uses of CPack:

CPACK_CMAKE_GENERATOR - What CMake generator should be used if the
project is CMake project. Defaults to the value of CMAKE_GENERATOR;
few users will want to change this setting.

CPACK_INSTALL_CMAKE_PROJECTS - List of four values that specify
what project to install. The four values are: Build directory,
Project Name, Project Component, Directory. If omitted, CPack will
build an installer that installers everything.

CPACK_SYSTEM_NAME - System name, defaults to the value of
${CMAKE_SYSTEM_NAME}.

CPACK_PACKAGE_VERSION - Package full version, used internally. By
default, this is built from CPACK_PACKAGE_VERSION_MAJOR,
CPACK_PACKAGE_VERSION_MINOR, and CPACK_PACKAGE_VERSION_PATCH.

CPACK_TOPLEVEL_TAG - Directory for the installed files.

CPACK_INSTALL_COMMANDS - Extra commands to install components.

CPACK_INSTALL_DIRECTORIES - Extra directories to install.

Component-specific installation allows users to select specific
sets of components to install during the install process.
Installation components are identified by the COMPONENT argument
of CMake's INSTALL commands, and should be further described by
the following CPack commands:

cpack_add_component - Describes a CPack installation component
named by the COMPONENT argument to a CMake INSTALL command.

cpack_add_component(compname
[DISPLAY_NAME name]
[DESCRIPTION description]
[HIDDEN | REQUIRED | DISABLED ]
[GROUP group]
[DEPENDS comp1 comp2 ... ]
[INSTALL_TYPES type1 type2 ... ]
[DOWNLOADED]
[ARCHIVE_FILE filename])

The cmake_add_component command describes an installation
component, which the user can opt to install or remove as part of
the graphical installation process. compname is the name of the
component, as provided to the COMPONENT argument of one or more
CMake INSTALL commands.

DISPLAY_NAME is the displayed name of the component, used in
graphical installers to display the component name. This value can
be any string.

DESCRIPTION is an extended description of the component, used in
graphical installers to give the user additional information about
the component. Descriptions can span multiple lines using "\n" as
the line separator. Typically, these descriptions should be no
more than a few lines long.

HIDDEN indicates that this component will be hidden in the
graphical installer, so that the user cannot directly change
whether it is installed or not.

REQUIRED indicates that this component is required, and therefore
will always be installed. It will be visible in the graphical
installer, but it cannot be unselected. (Typically, required
components are shown greyed out).

DISABLED indicates that this component should be disabled
(unselected) by default. The user is free to select this component
for installation, unless it is also HIDDEN.

DEPENDS lists the components on which this component depends. If
this component is selected, then each of the components listed
must also be selected. The dependency information is encoded
within the installer itself, so that users cannot install
inconsitent sets of components.

GROUP names the component group of which this component is a
part. If not provided, the component will be a standalone
component, not part of any component group. Component groups are
described with the cpack_add_component_group command, detailed
below.

INSTALL_TYPES lists the installation types of which this component
is a part. When one of these installations types is selected, this
component will automatically be selected. Installation types are
described with the cpack_add_install_type command, detailed below.

DOWNLOADED indicates that this component should be downloaded
on-the-fly by the installer, rather than packaged in with the
installer itself. For more information, see the cpack_configure_downloads
command.

ARCHIVE_FILE provides a name for the archive file created by CPack
to be used for downloaded components. If not supplied, CPack will
create a file with some name based on CPACK_PACKAGE_FILE_NAME and
the name of the component. See cpack_configure_downloads for more
information.

cpack_add_component_group - Describes a group of related CPack
installation components.

cpack_add_component_group(groupname
[DISPLAY_NAME name]
[DESCRIPTION description]
[PARENT_GROUP parent]
[EXPANDED]
[BOLD_TITLE])

The cpack_add_component_group describes a group of installation
components, which will be placed together within the listing of
options. Typically, component groups allow the user to
select/deselect all of the components within a single group via a
single group-level option. Use component groups to reduce the
complexity of installers with many options. groupname is an
arbitrary name used to identify the group in the GROUP argument of
the cpack_add_component command, which is used to place a
component in a group. The name of the group must not conflict with
the name of any component.

DISPLAY_NAME is the displayed name of the component group, used in
graphical installers to display the component group name. This
value can be any string.

DESCRIPTION is an extended description of the component group,
used in graphical installers to give the user additional
information about the components within that group. Descriptions
can span multiple lines using "\n" as the line
separator. Typically, these descriptions should be no more than a
few lines long.

PARENT_GROUP, if supplied, names the parent group of this group.
Parent groups are used to establish a hierarchy of groups,
providing an arbitrary hierarchy of groups.

EXPANDED indicates that, by default, the group should show up as
"expanded", so that the user immediately sees all of the
components within the group. Otherwise, the group will initially
show up as a single entry.

BOLD_TITLE indicates that the group title should appear in bold,
to call the user's attention to the group.

cpack_add_install_type - Add a new installation type containing a
set of predefined component selections to the graphical installer.

cpack_add_install_type(typename
[DISPLAY_NAME name])

The cpack_add_install_type command identifies a set of preselected
components that represents a common use case for an
application. For example, a "Developer" install type might include
an application along with its header and library files, while an
"End user" install type might just include the application's
executable. Each component identifies itself with one or more
install types via the INSTALL_TYPES argument to
cpack_add_component.

DISPLAY_NAME is the displayed name of the install type, which will
typically show up in a drop-down box within a graphical
installer. This value can be any string.

cpack_configure_downloads - Configure CPack to download selected
components on-the-fly as part of the installation process.

cpack_configure_downloads(site
[UPLOAD_DIRECTORY dirname]
[ALL]
[ADD_REMOVE|NO_ADD_REMOVE])

The cpack_configure_downloads command configures installation-time
downloads of selected components. For each downloadable component,
CPack will create an archive containing the contents of that
component, which should be uploaded to the given site. When the
user selects that component for installation, the installer will
download and extract the component in place. This feature is
useful for creating small installers that only download the
requested components, saving bandwidth. Additionally, the
installers are small enough that they will be installed as part of
the normal installation process, and the "Change" button in
Windows Add/Remove Programs control panel will allow one to add or
remove parts of the application after the original
installation. On Windows, the downloaded-components functionality
requires the ZipDLL plug-in for NSIS, available at:

http://nsis.sourceforge.net/ZipDLL_plug-in

On Mac OS X, installers that download components on-the-fly can
only be built and installed on system using Mac OS X 10.5 or
later.

The site argument is a URL where the archives for downloadable
components will reside, e.g., http://www.cmake.org/files/2.6.1/installer/
All of the archives produced by CPack should be uploaded to that location.

UPLOAD_DIRECTORY is the local directory where CPack will create the
various archives for each of the components. The contents of this
directory should be uploaded to a location accessible by the URL given
in the site argument. If omitted, CPack will use the directory CPackUploads
inside the CMake binary directory to store the generated archives.

The ALL flag indicates that all components be downloaded. Otherwise, only
those components explicitly marked as DOWNLOADED or that have a specified
ARCHIVE_FILE will be downloaded. Additionally, the ALL option implies
ADD_REMOVE (unless NO_ADD_REMOVE is specified).

ADD_REMOVE indicates that CPack should install a copy of the installer
that can be called from Windows' Add/Remove Programs dialog (via the
"Modify" button) to change the set of installed components. NO_ADD_REMOVE
turns off this behavior. This option is ignored on Mac OS X.

CPackRPM

CPack script for creating RPM package Author: Eric Noulard with
the help of Alexander Neundorf. All variables used by CPackRPM
begins with CPACK_RPM_ prefix

Here comes the list of used variables:

CTest Configure a project for testing with CTest/CDash

This file configures a project to use the CTest/CDash/Dart test‐
ing/dashboard process. This module should be included in the
CMakeLists.txt file at the top of a project. Typical usage:

INCLUDE(CTest)
IF(BUILD_TESTING)
# ... testing related CMake code ...
ENDIF(BUILD_TESTING)

The BUILD_TESTING option is created by the CTest module to
determine whether testing support should be enabled. The
default is ON.

CTestTestfile

CMake generated Testfile for Source directory: /build‐
dir/build/BUILD/cmake-2.6.4/Modules Build directory: /build‐
dir/build/BUILD/cmake-2.6.4/Modules

This file replicates the SUBDIRS() and ADD_TEST() commands from
the source tree CMakeLists.txt file, skipping any SUBDIRS() or
ADD_TEST() commands that are excluded by CMake control struc‐
tures, i.e. IF() commands.

CheckCCompilerFlag
Check whether the C compiler supports a given flag.

CHECK_C_COMPILER_FLAG(FLAG VARIABLE)

FLAG - the compiler flag
VARIABLE - variable to store the result

This actually calls the check_c_source_compiles macro.
See help for CheckCSourceCompiles for a listing of variables
that can modify the build.

CheckCSourceCompiles
Check if the C source code provided in the SOURCE argument com‐
piles.

CHECK_C_SOURCE_COMPILES(SOURCE VAR)

SOURCE - source code to try to compile
VAR - variable to store whether the source code compiled

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories
CMAKE_REQUIRED_LIBRARIES = list of libraries to link

CheckCSourceRuns
Check if the C source code provided in the SOURCE argument com‐
piles and runs.

CHECK_C_SOURCE_RUNS(SOURCE VAR)

SOURCE - source code to try to compile
VAR - variable to store the result, 1 for success, empty for failure

The following variables may be set before calling this macro to
modify the way the check is run:

CheckCXXCompilerFlag
Check whether the CXX compiler supports a given flag.

CHECK_CXX_COMPILER_FLAG(FLAG VARIABLE)

FLAG - the compiler flag
VARIABLE - variable to store the result

CheckCXXSourceCompiles
Check if the C++ source code provided in the SOURCE argument
compiles.

CHECK_CXX_SOURCE_COMPILES(SOURCE VAR)

SOURCE - source code to try to compile
VAR - variable to store whether the source code compiled

The following variables may be set before calling this macro to
modify the way the check is run:

CheckCXXSourceRuns
Check if the C++ source code provided in the SOURCE argument
compiles and runs.

CHECK_CXX_SOURCE_RUNS(SOURCE VAR)

SOURCE - source code to try to compile
VAR - variable to store the result, 1 for success, empty for failure

The following variables may be set before calling this macro to
modify the way the check is run:

CheckFortranFunctionExists
macro which checks if the Fortran function exists

CHECK_FORTRAN_FUNCTION_EXISTS(FUNCTION VARIABLE)

FUNCTION - the name of the Fortran function
VARIABLE - variable to store the result

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_LIBRARIES = list of libraries to link

CheckFunctionExists
macro which checks if the function exists

CHECK_FUNCTION_EXISTS(FUNCTION VARIABLE)

FUNCTION - the name of the function
VARIABLE - variable to store the result

The following variables may be set before calling this macro to
modify the way the check is run:

CheckIncludeFile
macro which checks the include file exists.

CHECK_INCLUDE_FILE(INCLUDE VARIABLE)

INCLUDE - name of include file
VARIABLE - variable to return result

an optional third argument is the CFlags to add to the compile
line or you can use CMAKE_REQUIRED_FLAGS

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories

CheckIncludeFileCXX
Check if the include file exists.

CHECK_INCLUDE_FILE_CXX(INCLUDE VARIABLE)

INCLUDE - name of include file
VARIABLE - variable to return result

An optional third argument is the CFlags to add to the compile
line or you can use CMAKE_REQUIRED_FLAGS.

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories

CheckIncludeFiles
Check if the files can be included

CHECK_INCLUDE_FILES(INCLUDE VARIABLE)

INCLUDE - list of files to include
VARIABLE - variable to return result

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories

CheckLibraryExists
Check if the function exists.

CHECK_LIBRARY_EXISTS (LIBRARY FUNCTION LOCATION VARIABLE)

LIBRARY - the name of the library you are looking for
FUNCTION - the name of the function
LOCATION - location where the library should be found
VARIABLE - variable to store the result

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_LIBRARIES = list of libraries to link

CheckStructHasMember
Check if the given struct or class has the specified member
variable

CHECK_STRUCT_HAS_MEMBER (STRUCT MEMBER HEADER VARIABLE)

STRUCT - the name of the struct or class you are interested in
MEMBER - the member which existence you want to check
HEADER - the header(s) where the prototype should be declared
VARIABLE - variable to store the result

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_INCLUDES = list of include directories

Example: CHECK_STRUCT_HAS_MEMBER("struct timeval" tv_sec
sys/select.h HAVE_TIMEVAL_TV_SEC)

CheckSymbolExists
Check if the symbol exists in include files

CHECK_SYMBOL_EXISTS(SYMBOL FILES VARIABLE)

SYMBOL - symbol
FILES - include files to check
VARIABLE - variable to return result

The following variables may be set before calling this macro to
modify the way the check is run:

CheckTypeSize
Check sizeof a type

CHECK_TYPE_SIZE(TYPE VARIABLE [BUILTIN_TYPES_ONLY])

Check if the type exists and determine size of type. if the
type exists, the size will be stored to the variable. This also
calls check_include_file for sys/types.h stdint.h and stddef.h,
setting HAVE_SYS_TYPES_H, HAVE_STDINT_H, and HAVE_STDDEF_H.
This is because many types are stored in these include files.

VARIABLE - variable to store size if the type exists.
HAVE_${VARIABLE} - does the variable exists or not
BUILTIN_TYPES_ONLY - The third argument is optional and if
it is set to the string BUILTIN_TYPES_ONLY
this macro will not check for any header files.

The following variables may be set before calling this macro to
modify the way the check is run:

CheckVariableExists
Check if the variable exists.

CHECK_VARIABLE_EXISTS(VAR VARIABLE)

VAR - the name of the variable
VARIABLE - variable to store the result

This macro is only for C variables.

The following variables may be set before calling this macro to
modify the way the check is run:

CMAKE_REQUIRED_FLAGS = string of compile command line flags
CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
CMAKE_REQUIRED_LIBRARIES = list of libraries to link

Dart Configure a project for testing with CTest or old Dart Tcl
Client

This file is the backwards-compatibility version of the CTest
module. It supports using the old Dart 1 Tcl client for driving
dashboard submissions as well as testing with CTest. This mod‐
ule should be included in the CMakeLists.txt file at the top of
a project. Typical usage:

INCLUDE(Dart)
IF(BUILD_TESTING)
# ... testing related CMake code ...
ENDIF(BUILD_TESTING)

The BUILD_TESTING option is created by the Dart module to deter‐
mine whether testing support should be enabled. The default is
ON.

Documentation
DocumentationVTK.cmake

This file provides support for the VTK documentation framework.
It relies on several tools (Doxygen, Perl, etc).

FeatureSummary
Macros for generating a summary of enabled/disabled features

PRINT_ENABLED_FEATURES()

Print a summary of all enabled features. By default all successfull
FIND_PACKAGE() calls will appear here, except the ones which used the QUIET keyword.
Additional features can be added by appending an entry to the global ENABLED_FEATURES
property. If SET_FEATURE_INFO() is used for that feature, the output will be much
more informative.

PRINT_DISABLED_FEATURES()

Same as PRINT_ENABLED_FEATURES(), but for disabled features. It can be extended
the same way by adding to the global property DISABLED_FEATURES.

SET_FEATURE_INFO(NAME DESCRIPTION [URL [COMMENT] ] )

Use this macro to set up information about the named feature, which will
then be displayed by PRINT_ENABLED/DISABLED_FEATURES().
Example: SET_FEATURE_INFO(LibXml2 "XML processing library." "http://xmlsoft.org/")

FindASPELL
Try to find ASPELL

Once done this will define

ASPELL_FOUND - system has ASPELL
ASPELL_INCLUDE_DIR - the ASPELL include directory
ASPELL_LIBRARIES - The libraries needed to use ASPELL
ASPELL_DEFINITIONS - Compiler switches required for using ASPELL

FindAVIFile
Locate AVIFILE library and include paths

AVIFILE (http://avifile.sourceforge.net/)is a set of libraries
for i386 machines to use various AVI codecs. Support is limited
beyond Linux. Windows provides native AVI support, and so
doesn't need this library. This module defines

AVIFILE_INCLUDE_DIR, where to find avifile.h , etc.
AVIFILE_LIBRARIES, the libraries to link against
AVIFILE_DEFINITIONS, definitions to use when compiling
AVIFILE_FOUND, If false, don't try to use AVIFILE

FindBLAS
Find BLAS library

This module finds an installed fortran library that implements
the BLAS linear-algebra interface (see
http://www.netlib.org/blas/). The list of libraries searched for
is taken from the autoconf macro file, acx_blas.m4 (distributed
at http://ac-archive.sourceforge.net/ac-archive/acx_blas.html).

This module sets the following variables:

BLAS_FOUND - set to true if a library implementing the BLAS interface
is found
BLAS_LINKER_FLAGS - uncached list of required linker flags (excluding -l
and -L).
BLAS_LIBRARIES - uncached list of libraries (using full path name) to
link against to use BLAS
BLAS95_LIBRARIES - uncached list of libraries (using full path name)
to link against to use BLAS95 interface
BLAS95_FOUND - set to true if a library implementing the BLAS f95 interface
is found
BLA_STATIC if set on this determines what kind of linkage we do (static)
BLA_VENDOR if set checks only the specified vendor, if not set checks
all the posibilities
BLA_F95 if set on tries to find the f95 interfaces for BLAS/LAPACK

######### ## List of vendors (BLA_VENDOR) valid in this module #
ATLAS, PhiPACK,CXML,DXML,SunPerf,SCSL,SGIMATH,IBMESSL,Intel10_32
(intel mkl v10 32 bit),Intel10_64lp (intel mkl v10 64 bit,lp
thread model, lp64 model), # Intel( older versions of mkl 32
and 64 bit), ACML,Apple, NAS, Generic C/CXX should be enabled to
use Intel mkl

FindBZip2
Try to find BZip2

Once done this will define

BZIP2_FOUND - system has BZip2
BZIP2_INCLUDE_DIR - the BZip2 include directory
BZIP2_LIBRARIES - Link these to use BZip2
BZIP2_DEFINITIONS - Compiler switches required for using BZip2
BZIP2_NEED_PREFIX - this is set if the functions are prefixed with BZ2_

FindBoost
Try to find Boost include dirs and libraries

Usage of this module as follows:

== Using Header-Only libraries from within Boost: ==

find_package( Boost 1.36.0 )
if(Boost_FOUND)
include_directories(${Boost_INCLUDE_DIRS})
add_executable(foo foo.cc)
endif()

== Using actual libraries from within Boost: ==

set(Boost_USE_STATIC_LIBS ON)
set(Boost_USE_MULTITHREADED ON)
find_package( Boost 1.36.0 COMPONENTS date_time filesystem system ... )

if(Boost_FOUND)
include_directories(${Boost_INCLUDE_DIRS})
add_executable(foo foo.cc)
target_link_libraries(foo ${Boost_LIBRARIES})
endif()

The components list needs to contain actual names of boost
libraries only, such as "date_time" for "libboost_date_time".
If you're using parts of Boost that contain header files only
(e.g. foreach) you do not need to specify COMPONENTS.

You should provide a minimum version number that should be used.
If you provide this version number and specify the REQUIRED
attribute, this module will fail if it can't find the specified
or a later version. If you specify a version number this is
automatically put into the considered list of version numbers
and thus doesn't need to be specified in the Boost_ADDI‐
TIONAL_VERSIONS variable (see below).

NOTE for Visual Studio Users:

Automatic linking is used on MSVC & Borland compilers by default when
#including things in Boost. It's important to note that setting
Boost_USE_STATIC_LIBS to OFF is NOT enough to get you dynamic linking,
should you need this feature. Automatic linking typically uses static
libraries with a few exceptions (Boost.Python is one).

Please see the section below near Boost_LIB_DIAGNOSTIC_DEFINITIONS for
more details. Adding a TARGET_LINK_LIBRARIES() as shown in the example
above appears to cause VS to link dynamically if Boost_USE_STATIC_LIBS
gets set to OFF. It is suggested you avoid automatic linking since it
will make your application less portable.

=========== The mess that is Boost_ADDITIONAL_VERSIONS (sorry?)
============

OK, so the Boost_ADDITIONAL_VERSIONS variable can be used to
specify a list of boost version numbers that should be taken
into account when searching for Boost. Unfortunately boost puts
the version number into the actual filename for the libraries,
so this variable will certainly be needed in the future when new
Boost versions are released.

Currently this module searches for the following version num‐
bers: 1.33, 1.33.0, 1.33.1, 1.34, 1.34.0, 1.34.1, 1.35, 1.35.0,
1.35.1, 1.36, 1.36.0, 1.36.1, 1.37, 1.37.0, 1.38, 1.38.0

NOTE: If you add a new major 1.x version in Boost_ADDI‐
TIONAL_VERSIONS you should add both 1.x and 1.x.0 as shown
above. Official Boost include directories omit the 3rd version
number from include paths if it is 0 although not all binary
Boost releases do so.

SET(Boost_ADDITIONAL_VERSIONS "0.99" "0.99.0" "1.78" "1.78.0")

============================================================================

Variables used by this module, they can change the default be‐
haviour and need to be set before calling find_package:

Boost_USE_MULTITHREADED Can be set to OFF to use the non-multithreaded
boost libraries. If not specified, defaults
to ON.

Boost_USE_STATIC_LIBS Can be set to ON to force the use of the static
boost libraries. Defaults to OFF.

Other Variables used by this module which you may want to set.

Boost_ADDITIONAL_VERSIONS A list of version numbers to use for searching
the boost include directory. Please see
the documentation above regarding this
annoying, but necessary variable :(

Boost_DEBUG Set this to TRUE to enable debugging output
of FindBoost.cmake if you are having problems.
Please enable this before filing any bug
reports.

Boost_COMPILER Set this to the compiler suffix used by Boost
(e.g. "-gcc43") if FindBoost has problems finding
the proper Boost installation

These last three variables are available also as environment
variables:

BOOST_ROOT or BOOSTROOT The preferred installation prefix for searching for
Boost. Set this if the module has problems finding
the proper Boost installation.

BOOST_INCLUDEDIR Set this to the include directory of Boost, if the
module has problems finding the proper Boost installation

BOOST_LIBRARYDIR Set this to the lib directory of Boost, if the
module has problems finding the proper Boost installation

Variables defined by this module:

Boost_FOUND System has Boost, this means the include dir was
found, as well as all the libraries specified in
the COMPONENTS list.

Boost_INCLUDE_DIRS Boost include directories: not cached

Boost_INCLUDE_DIR This is almost the same as above, but this one is
cached and may be modified by advanced users

Boost_LIBRARIES Link to these to use the Boost libraries that you
specified: not cached

Boost_LIBRARY_DIRS The path to where the Boost library files are.

Boost_VERSION The version number of the boost libraries that
have been found, same as in version.hpp from Boost

Boost_LIB_VERSION The version number in filename form as
it's appended to the library filenames

Boost_MAJOR_VERSION major version number of boost
Boost_MINOR_VERSION minor version number of boost
Boost_SUBMINOR_VERSION subminor version number of boost

Boost_LIB_DIAGNOSTIC_DEFINITIONS [WIN32 Only] You can call
add_definitions(${Boost_LIB_DIAGNOSTIC_DEFINTIIONS})
to have diagnostic information about Boost's
automatic linking outputted during compilation time.

For each component you specify in find_package(), the following
(UPPER-CASE) variables are set. You can use these variables if
you would like to pick and choose components for your targets
instead of just using Boost_LIBRARIES.

Boost_${COMPONENT}_FOUND True IF the Boost library "component" was found.

Boost_${COMPONENT}_LIBRARY Contains the libraries for the specified Boost
"component" (includes debug and optimized keywords
when needed).

=====================================================================

Redistribution AND use is allowed according to the terms of the New
BSD license.
For details see the accompanying COPYING-CMAKE-SCRIPTS file.

FindCABLE
Find CABLE

This module finds if CABLE is installed and determines where the
include files and libraries are. This code sets the following
variables:

CABLE the path to the cable executable
CABLE_TCL_LIBRARY the path to the Tcl wrapper library
CABLE_INCLUDE_DIR the path to the include directory

To build Tcl wrappers, you should add shared library and link it
to ${CABLE_TCL_LIBRARY}. You should also add
${CABLE_INCLUDE_DIR} as an include directory.

FindCURL
Find curl

Find the native CURL headers and libraries.

CURL_INCLUDE_DIRS - where to find curl/curl.h, etc.
CURL_LIBRARIES - List of libraries when using curl.
CURL_FOUND - True if curl found.

FindCVS

The module defines the following variables:

CVS_EXECUTABLE - path to cvs command line client
CVS_FOUND - true if the command line client was found

Example usage:

find_package(CVS)
if(CVS_FOUND)
message("CVS found: ${CVS_EXECUTABLE}")
endif(CVS_FOUND)

FindCoin3D
Find Coin3D (Open Inventor)

Coin3D is an implementation of the Open Inventor API. It pro‐
vides data structures and algorithms for 3D visualization
http://www.coin3d.org/

This module defines the following variables

COIN3D_FOUND - system has Coin3D - Open Inventor
COIN3D_INCLUDE_DIRS - where the Inventor include directory can be found
COIN3D_LIBRARIES - Link to this to use Coin3D

FindCups
Try to find the Cups printing system

Once done this will define

CUPS_FOUND - system has Cups
CUPS_INCLUDE_DIR - the Cups include directory
CUPS_LIBRARIES - Libraries needed to use Cups
Set CUPS_REQUIRE_IPP_DELETE_ATTRIBUTE to TRUE if you need a version which
features this function (i.e. at least 1.1.19)

FindCurses
Find the curses include file and library

CURSES_FOUND - system has Curses
CURSES_INCLUDE_DIR - the Curses include directory
CURSES_LIBRARIES - The libraries needed to use Curses
CURSES_HAVE_CURSES_H - true if curses.h is available
CURSES_HAVE_NCURSES_H - true if ncurses.h is available
CURSES_HAVE_NCURSES_NCURSES_H - true if ncurses/ncurses.h is available
CURSES_HAVE_NCURSES_CURSES_H - true if ncurses/curses.h is available
CURSES_LIBRARY - set for backwards compatibility with 2.4 CMake

Set CURSES_NEED_NCURSES to TRUE before the FIND_PACKAGE() com‐
mand if NCurses functionality is required.

FindCxxTest
Find CxxTest

Find the CxxTest suite and declare a helper macro for creating
unit tests and integrating them with CTest. For more details on
CxxTest see http://cxxtest.tigris.org

INPUT Variables

CXXTEST_USE_PYTHON
If true, the CXXTEST_ADD_TEST macro will use
the Python test generator instead of Perl.

OUTPUT Variables

CXXTEST_FOUND
True if the CxxTest framework was found
CXXTEST_INCLUDE_DIR
Where to find the CxxTest include directory
CXXTEST_PERL_TESTGEN_EXECUTABLE
The perl-based test generator.
CXXTEST_PYTHON_TESTGEN_EXECUTABLE
The python-based test generator.

MACROS for use by CMake users:

CXXTEST_ADD_TEST(<test_name> <gen_source_file> <input_files_to_testgen...>)
Creates a CxxTest runner and adds it to the CTest testing suite
Parameters:
test_name The name of the test
gen_source_file The generated source filename to be generated by CxxTest
input_files_to_testgen The list of header files containing the
CxxTest::TestSuite's to be included in this runner

#==============
Example Usage:

FIND_PACKAGE(CxxTest)
INCLUDE_DIRECTORIES(${CXXTEST_INCLUDE_DIR})

ENABLE_TESTING()
CXXTEST_ADD_TEST(unittest_foo foo_test.cc ${CMAKE_CURRENT_SOURCE_DIR}/foo_test.h)

This will:
1. Invoke the testgen executable to autogenerate foo_test.cc in the
binary tree from "foo_test.h" in the current source directory.
2. Create an executable and test called unittest_foo.

#=============
Example foo_test.h:

#include <cxxtest/TestSuite.h>

class MyTestSuite : public CxxTest::TestSuite
{
public:
void testAddition( void )
{
TS_ASSERT( 1 + 1 > 1 );
TS_ASSERT_EQUALS( 1 + 1, 2 );
}
};

Philip Lowman <philip@yhbt.com>

Version 1.0 (1/8/08)

Fixed CXXTEST_INCLUDE_DIRS so it will work properly
Eliminated superfluous CXXTEST_FOUND assignment
Cleaned up and added more documentation

FindCygwin
this module looks for Cygwin

FindDCMTK
find DCMTK libraries

FindDart
Find DART

This module looks for the dart testing software and sets
DART_ROOT to point to where it found it.

FindDevIL

This module locates the developer's image library. http://ope‐
nil.sourceforge.net/

This module sets: IL_LIBRARY the name of the IL library.
ILU_LIBRARY the name of the ILU library. ILUT_LIBRARY the name
of the ILUT library. IL_INCLUDE_DIR where to find the il.h,
ilu.h and ilut.h files. IL_FOUND this is set to TRUE if all the
above variables were set.

FindDoxygen
This module looks for Doxygen and the path to Graphviz's dot

Doxygen is a documentation generation tool. Please see
http://www.doxygen.org

This module accepts the following optional variables:

DOXYGEN_SKIP_DOT = If true this module will skip trying to find Dot
(an optional component often used by Doxygen)

This modules defines the following variables:

DOXYGEN_EXECUTABLE = The path to the doxygen command.
DOXYGEN_FOUND = Was Doxygen found or not?

DOXYGEN_DOT_EXECUTABLE = The path to the dot program used by doxygen.
DOXYGEN_DOT_FOUND = Was Dot found or not?
DOXYGEN_DOT_PATH = The path to dot not including the executable

FindEXPAT
Find expat

Find the native EXPAT headers and libraries.

EXPAT_INCLUDE_DIRS - where to find expat.h, etc.
EXPAT_LIBRARIES - List of libraries when using expat.
EXPAT_FOUND - True if expat found.

FindFLTK
Find the native FLTK includes and library

By default FindFLTK.cmake will search for all of the FLTK compo‐
nents and add them to the FLTK_LIBRARIES variable.

You can limit the components which get placed in FLTK_LIBRARIES by
defining one or more of the following three options:

FLTK_SKIP_OPENGL, set to true to disable searching for opengl and
the FLTK GL library
FLTK_SKIP_FORMS, set to true to disable searching for fltk_forms
FLTK_SKIP_IMAGES, set to true to disable searching for fltk_images

FLTK_SKIP_FLUID, set to true if the fluid binary need not be present
at build time

The following variables will be defined:

FLTK_FOUND, True if all components not skipped were found
FLTK_INCLUDE_DIR, where to find include files
FLTK_LIBRARIES, list of fltk libraries you should link against
FLTK_FLUID_EXECUTABLE, where to find the Fluid tool
FLTK_WRAP_UI, This enables the FLTK_WRAP_UI command

The following cache variables are assigned but should not be
used. See the FLTK_LIBRARIES variable instead.

FLTK_BASE_LIBRARY = the full path to fltk.lib
FLTK_GL_LIBRARY = the full path to fltk_gl.lib
FLTK_FORMS_LIBRARY = the full path to fltk_forms.lib
FLTK_IMAGES_LIBRARY = the full path to fltk_images.lib

FindFLTK2
Find the native FLTK2 includes and library

The following settings are defined

FLTK2_FLUID_EXECUTABLE, where to find the Fluid tool
FLTK2_WRAP_UI, This enables the FLTK2_WRAP_UI command
FLTK2_INCLUDE_DIR, where to find include files
FLTK2_LIBRARIES, list of fltk2 libraries
FLTK2_FOUND, Don't use FLTK2 if false.

The following settings should not be used in general.

FLTK2_BASE_LIBRARY = the full path to fltk2.lib
FLTK2_GL_LIBRARY = the full path to fltk2_gl.lib
FLTK2_IMAGES_LIBRARY = the full path to fltk2_images.lib

FindFreetype
Locate FreeType library

This module defines

FREETYPE_LIBRARIES, the library to link against
FREETYPE_FOUND, if false, do not try to link to FREETYPE
FREETYPE_INCLUDE_DIRS, where to find headers.
This is the concatenation of the paths:
FREETYPE_INCLUDE_DIR_ft2build
FREETYPE_INCLUDE_DIR_freetype2

$FREETYPE_DIR is an environment variable that would correspond
to the ./configure --prefix=$FREETYPE_DIR used in building
FREETYPE.

FindGCCXML
Find the GCC-XML front-end executable.

FindGDAL

Locate gdal

This module accepts the following environment variables:

GDAL_DIR or GDAL_ROOT - Specify the location of GDAL

This module defines the following CMake variables:

GDAL_FOUND - True if libgdal is found
GDAL_LIBRARY - A variable pointing to the GDAL library
GDAL_INCLUDE_DIR - Where to find the headers

$GDALDIR is an environment variable that would correspond to the
./configure --prefix=$GDAL_DIR used in building gdal.

Created by Eric Wing. I'm not a gdal user, but OpenSceneGraph
uses it for osgTerrain so I whipped this module together for
completeness. I actually don't know the conventions or where
files are typically placed in distros. Any real gdal users are
encouraged to correct this (but please don't break the OS X
framework stuff when doing so which is what usually seems to
happen).

FindGIF

This module defines GIF_LIBRARIES - libraries to link to in
order to use GIF GIF_FOUND, if false, do not try to link
GIF_INCLUDE_DIR, where to find the headers

$GIF_DIR is an environment variable that would correspond to the
./configure --prefix=$GIF_DIR

FindGLUT
try to find glut library and include files

GLUT_INCLUDE_DIR, where to find GL/glut.h, etc.
GLUT_LIBRARIES, the libraries to link against
GLUT_FOUND, If false, do not try to use GLUT.

Also defined, but not for general use are:

GLUT_glut_LIBRARY = the full path to the glut library.
GLUT_Xmu_LIBRARY = the full path to the Xmu library.
GLUT_Xi_LIBRARY = the full path to the Xi Library.

FindGTK
try to find GTK (and glib) and GTKGLArea

GTK_INCLUDE_DIR - Directories to include to use GTK
GTK_LIBRARIES - Files to link against to use GTK
GTK_FOUND - GTK was found
GTK_GL_FOUND - GTK's GL features were found

FindGettext
Find GNU gettext tools

This module looks for the GNU gettext tools. This module defines
the following values:

GETTEXT_MSGMERGE_EXECUTABLE: the full path to the msgmerge tool.
GETTEXT_MSGFMT_EXECUTABLE: the full path to the msgfmt tool.
GETTEXT_FOUND: True if gettext has been found.

Additionally it provides the following macros: GETTEXT_CRE‐
ATE_TRANSLATIONS ( outputFile [ALL] file1 ... fileN )

This will create a target "translations" which will convert the
given input po files into the binary output mo file. If the
ALL option is used, the translations will also be created when
building the default target.

FindGnuplot
this module looks for gnuplot

Once done this will define

GNUPLOT_FOUND - system has Gnuplot
GNUPLOT_EXECUTABLE - the Gnuplot executable

FindHSPELL
Try to find HSPELL

Once done this will define

HSPELL_FOUND - system has HSPELL
HSPELL_INCLUDE_DIR - the HSPELL include directory
HSPELL_LIBRARIES - The libraries needed to use HSPELL
HSPELL_DEFINITIONS - Compiler switches required for using HSPELL

FindHTMLHelp
This module looks for Microsoft HTML Help Compiler

It defines:

HTML_HELP_COMPILER : full path to the Compiler (hhc.exe)
HTML_HELP_INCLUDE_PATH : include path to the API (htmlhelp.h)
HTML_HELP_LIBRARY : full path to the library (htmlhelp.lib)

FindITK
Find an ITK installation or build tree.

FindImageMagick
Find the ImageMagick binary suite.

This module will search for a set of ImageMagick tools specified
as components in the FIND_PACKAGE call. Typical components
include, but are not limited to (future versions of ImageMagick
might have additional components not listed here):

animate
compare
composite
conjure
convert
display
identify
import
mogrify
montage
stream

If no component is specified in the FIND_PACKAGE call, then it
only searches for the ImageMagick executable directory. This
code defines the following variables:

ImageMagick_FOUND - TRUE if all components are found.
ImageMagick_EXECUTABLE_DIR - Full path to executables directory.
ImageMagick_<component>_FOUND - TRUE if <component> is found.
ImageMagick_<component>_EXECUTABLE - Full path to <component> executable.

There are also components for the following ImageMagick APIs:

Magick++
MagickWand
MagickCore

For these components the following variables are set:

ImageMagick_FOUND - TRUE if all components are found.
ImageMagick_INCLUDE_DIRS - Full paths to all include dirs.
ImageMagick_LIBRARIES - Full paths to all libraries.
ImageMagick_<component>_FOUND - TRUE if <component> is found.
ImageMagick_<component>_INCLUDE_DIRS - Full path to <component> include dirs.
ImageMagick_<component>_LIBRARIES - Full path to <component> libraries.

Example Usages:

FIND_PACKAGE(ImageMagick)
FIND_PACKAGE(ImageMagick COMPONENTS convert)
FIND_PACKAGE(ImageMagick COMPONENTS convert mogrify display)
FIND_PACKAGE(ImageMagick COMPONENTS Magick++)
FIND_PACKAGE(ImageMagick COMPONENTS Magick++ convert)

Note that the standard FIND_PACKAGE features are supported
(i.e., QUIET, REQUIRED, etc.).

FindJNI
Find JNI java libraries.

This module finds if Java is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

JNI_INCLUDE_DIRS = the include dirs to use
JNI_LIBRARIES = the libraries to use
JAVA_AWT_LIBRARY = the path to the jawt library
JAVA_JVM_LIBRARY = the path to the jvm library
JAVA_INCLUDE_PATH = the include path to jni.h
JAVA_INCLUDE_PATH2 = the include path to jni_md.h
JAVA_AWT_INCLUDE_PATH = the include path to jawt.h

FindJPEG
Find JPEG

Find the native JPEG includes and library This module defines

JPEG_INCLUDE_DIR, where to find jpeglib.h, etc.
JPEG_LIBRARIES, the libraries needed to use JPEG.
JPEG_FOUND, If false, do not try to use JPEG.

also defined, but not for general use are

JPEG_LIBRARY, where to find the JPEG library.

FindJasper
Try to find the Jasper JPEG2000 library

Once done this will define

JASPER_FOUND - system has Jasper
JASPER_INCLUDE_DIR - the Jasper include directory
JASPER_LIBRARIES - The libraries needed to use Jasper

FindJava
Find Java

This module finds if Java is installed and determines where the
include files and libraries are. This code sets the following
variables:

JAVA_RUNTIME = the full path to the Java runtime
JAVA_COMPILE = the full path to the Java compiler
JAVA_ARCHIVE = the full path to the Java archiver

FindKDE3
Find the KDE3 include and library dirs, KDE preprocessors and
define a some macros

This module defines the following variables:

KDE3_DEFINITIONS - compiler definitions required for compiling KDE software
KDE3_INCLUDE_DIR - the KDE include directory
KDE3_INCLUDE_DIRS - the KDE and the Qt include directory, for use with INCLUDE_DIRECTORIES()
KDE3_LIB_DIR - the directory where the KDE libraries are installed, for use with LINK_DIRECTORIES()
QT_AND_KDECORE_LIBS - this contains both the Qt and the kdecore library
KDE3_DCOPIDL_EXECUTABLE - the dcopidl executable
KDE3_DCOPIDL2CPP_EXECUTABLE - the dcopidl2cpp executable
KDE3_KCFGC_EXECUTABLE - the kconfig_compiler executable
KDE3_FOUND - set to TRUE if all of the above has been found

The following user adjustable options are provided:

KDE3_BUILD_TESTS - enable this to build KDE testcases

It also adds the following macros (from KDE3Macros.cmake)
SRCS_VAR is always the variable which contains the list of
source files for your application or library.

KDE3_AUTOMOC(file1 ... fileN)

Call this if you want to have automatic moc file handling.
This means if you include "foo.moc" in the source file foo.cpp
a moc file for the header foo.h will be created automatically.
You can set the property SKIP_AUTOMAKE using SET_SOURCE_FILES_PROPERTIES()
to exclude some files in the list from being processed.

KDE3_ADD_MOC_FILES(SRCS_VAR file1 ... fileN )

If you don't use the KDE3_AUTOMOC() macro, for the files
listed here moc files will be created (named "foo.moc.cpp")

KDE3_ADD_DCOP_SKELS(SRCS_VAR header1.h ... headerN.h )

Use this to generate DCOP skeletions from the listed headers.

KDE3_ADD_DCOP_STUBS(SRCS_VAR header1.h ... headerN.h )

Use this to generate DCOP stubs from the listed headers.

KDE3_ADD_UI_FILES(SRCS_VAR file1.ui ... fileN.ui )

Use this to add the Qt designer ui files to your application/library.

KDE3_ADD_KCFG_FILES(SRCS_VAR file1.kcfgc ... fileN.kcfgc )

Use this to add KDE kconfig compiler files to your application/library.

KDE3_INSTALL_LIBTOOL_FILE(target)

This will create and install a simple libtool file for the given target.

KDE3_ADD_EXECUTABLE(name file1 ... fileN )

Currently identical to ADD_EXECUTABLE(), may provide some advanced features in the future.

KDE3_ADD_KPART(name [WITH_PREFIX] file1 ... fileN )

Create a KDE plugin (KPart, kioslave, etc.) from the given source files.
If WITH_PREFIX is given, the resulting plugin will have the prefix "lib", otherwise it won't.
It creates and installs an appropriate libtool la-file.

KDE3_ADD_KDEINIT_EXECUTABLE(name file1 ... fileN )

Create a KDE application in the form of a module loadable via kdeinit.
A library named kdeinit_<name> will be created and a small executable which links to it.

The option KDE3_ENABLE_FINAL to enable all-in-one compilation is
no longer supported.

Author: Alexander Neundorf <neundorf@kde.org>

FindKDE4

Find KDE4 and provide all necessary variables and macros to com‐
pile software for it. It looks for KDE 4 in the following direc‐
tories in the given order:

CMAKE_INSTALL_PREFIX
KDEDIRS
/opt/kde4

Please look in FindKDE4Internal.cmake and KDE4Macros.cmake for
more information. They are installed with the KDE 4 libraries in
$KDEDIRS/share/apps/cmake/modules/.

Author: Alexander Neundorf <neundorf@kde.org>

FindLAPACK
Find LAPACK library

This module finds an installed fortran library that implements
the LAPACK linear-algebra interface (see
http://www.netlib.org/lapack/).

The approach follows that taken for the autoconf macro file,
acx_lapack.m4 (distributed at http://ac-archive.source‐
forge.net/ac-archive/acx_lapack.html).

This module sets the following variables:

LAPACK_FOUND - set to true if a library implementing the LAPACK interface
is found
LAPACK_LINKER_FLAGS - uncached list of required linker flags (excluding -l
and -L).
LAPACK_LIBRARIES - uncached list of libraries (using full path name) to
link against to use LAPACK
LAPACK95_LIBRARIES - uncached list of libraries (using full path name) to
link against to use LAPACK95
LAPACK95_FOUND - set to true if a library implementing the LAPACK f95
interface is found
BLA_STATIC if set on this determines what kind of linkage we do (static)
BLA_VENDOR if set checks only the specified vendor, if not set checks
all the posibilities
BLA_F95 if set on tries to find the f95 interfaces for BLAS/LAPACK

## List of vendors (BLA_VENDOR) valid in this module #
Intel(mkl), ACML,Apple, NAS, Generic

FindLATEX
Find Latex

This module finds if Latex is installed and determines where the
executables are. This code sets the following variables:

LATEX_COMPILER: path to the LaTeX compiler
PDFLATEX_COMPILER: path to the PdfLaTeX compiler
BIBTEX_COMPILER: path to the BibTeX compiler
MAKEINDEX_COMPILER: path to the MakeIndex compiler
DVIPS_CONVERTER: path to the DVIPS converter
PS2PDF_CONVERTER: path to the PS2PDF converter
LATEX2HTML_CONVERTER: path to the LaTeX2Html converter

FindLibXml2
Try to find LibXml2

Once done this will define

LIBXML2_FOUND - System has LibXml2
LIBXML2_INCLUDE_DIR - The LibXml2 include directory
LIBXML2_LIBRARIES - The libraries needed to use LibXml2
LIBXML2_DEFINITIONS - Compiler switches required for using LibXml2
LIBXML2_XMLLINT_EXECUTABLE - The XML checking tool xmllint coming with LibXml2

FindLibXslt
Try to find LibXslt

Once done this will define

LIBXSLT_FOUND - system has LibXslt
LIBXSLT_INCLUDE_DIR - the LibXslt include directory
LIBXSLT_LIBRARIES - Link these to LibXslt
LIBXSLT_DEFINITIONS - Compiler switches required for using LibXslt

FindLua50

Locate Lua library This module defines

LUA50_FOUND, if false, do not try to link to Lua
LUA_LIBRARIES, both lua and lualib
LUA_INCLUDE_DIR, where to find lua.h and lualib.h (and probably lauxlib.h)

Note that the expected include convention is

#include "lua.h"

and not

#include <lua/lua.h>

This is because, the lua location is not standardized and may
exist in locations other than lua/

FindLua51

Locate Lua library This module defines

LUA51_FOUND, if false, do not try to link to Lua
LUA_LIBRARIES
LUA_INCLUDE_DIR, where to find lua.h

Note that the expected include convention is

#include "lua.h"

and not

#include <lua/lua.h>

This is because, the lua location is not standardized and may
exist in locations other than lua/

FindMFC
Find MFC on Windows

Find the native MFC - i.e. decide if an application can link to
the MFC libraries.

MFC_FOUND - Was MFC support found

You don't need to include anything or link anything to use it.

FindMPEG
Find the native MPEG includes and library

This module defines

MPEG_INCLUDE_DIR, where to find MPEG.h, etc.
MPEG_LIBRARIES, the libraries required to use MPEG.
MPEG_FOUND, If false, do not try to use MPEG.

also defined, but not for general use are

MPEG_mpeg2_LIBRARY, where to find the MPEG library.
MPEG_vo_LIBRARY, where to find the vo library.

FindMPEG2
Find the native MPEG2 includes and library

This module defines

MPEG2_INCLUDE_DIR, path to mpeg2dec/mpeg2.h, etc.
MPEG2_LIBRARIES, the libraries required to use MPEG2.
MPEG2_FOUND, If false, do not try to use MPEG2.

also defined, but not for general use are

MPEG2_mpeg2_LIBRARY, where to find the MPEG2 library.
MPEG2_vo_LIBRARY, where to find the vo library.

FindMPI
Message Passing Interface (MPI) module.

The Message Passing Interface (MPI) is a library used to write
high-performance parallel applications that use message passing,
and is typically deployed on a cluster. MPI is a standard inter‐
face (defined by the MPI forum) for which many implementations
are available. All of these implementations have somewhat dif‐
ferent compilation approaches (different include paths,
libraries to link against, etc.), and this module tries to
smooth out those differences.

This module will set the following variables:

MPI_FOUND TRUE if we have found MPI
MPI_COMPILE_FLAGS Compilation flags for MPI programs
MPI_INCLUDE_PATH Include path(s) for MPI header
MPI_LINK_FLAGS Linking flags for MPI programs
MPI_LIBRARY First MPI library to link against (cached)
MPI_EXTRA_LIBRARY Extra MPI libraries to link against (cached)
MPI_LIBRARIES All libraries to link MPI programs against
MPIEXEC Executable for running MPI programs
MPIEXEC_NUMPROC_FLAG Flag to pass to MPIEXEC before giving it the
number of processors to run on
MPIEXEC_PREFLAGS Flags to pass to MPIEXEC directly before the
executable to run.
MPIEXEC_POSTFLAGS Flags to pass to MPIEXEC after all other flags.

This module will attempt to auto-detect these settings, first by
looking for a MPI compiler, which many MPI implementations pro‐
vide as a pass-through to the native compiler to simplify the
compilation of MPI programs. The MPI compiler is stored in the
cache variable MPI_COMPILER, and will attempt to look for com‐
monly-named drivers mpic++, mpicxx, mpiCC, or mpicc. If the com‐
piler driver is found and recognized, it will be used to set all
of the module variables. To skip this auto-detection, set
MPI_LIBRARY and MPI_INCLUDE_PATH in the CMake cache.

If no compiler driver is found or the compiler driver is not
recognized, this module will then search for common include
paths and library names to try to detect MPI.

If CMake initially finds a different MPI than was intended, and
you want to use the MPI compiler auto-detection for a different
MPI implementation, set MPI_COMPILER to the MPI compiler driver
you want to use (e.g., mpicxx) and then set MPI_LIBRARY to the
string MPI_LIBRARY-NOTFOUND. When you re-configure, auto-detec‐
tion of MPI will run again with the newly-specified MPI_COM‐
PILER.

When using MPIEXEC to execute MPI applications, you should typi‐
cally use all of the MPIEXEC flags as follows:

${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} PROCS ${MPIEXEC_PREFLAGS} EXECUTABLE
${MPIEXEC_POSTFLAGS} ARGS

where PROCS is the number of processors on which to execute the
program, EXECUTABLE is the MPI program, and ARGS are the argu‐
ments to pass to the MPI program.

FindMatlab
this module looks for Matlab

Defines:

MATLAB_INCLUDE_DIR: include path for mex.h, engine.h
MATLAB_LIBRARIES: required libraries: libmex, etc
MATLAB_MEX_LIBRARY: path to libmex.lib
MATLAB_MX_LIBRARY: path to libmx.lib
MATLAB_ENG_LIBRARY: path to libeng.lib

FindMotif
Try to find Motif (or lesstif)

Once done this will define:

MOTIF_FOUND - system has MOTIF
MOTIF_INCLUDE_DIR - incude paths to use Motif
MOTIF_LIBRARIES - Link these to use Motif

FindOpenAL

Locate OpenAL This module defines OPENAL_LIBRARY OPENAL_FOUND,
if false, do not try to link to OpenAL OPENAL_INCLUDE_DIR,
where to find the headers

$OPENALDIR is an environment variable that would correspond to
the ./configure --prefix=$OPENALDIR used in building OpenAL.

Created by Eric Wing. This was influenced by the FindSDL.cmake
module.

FindOpenGL
Try to find OpenGL

Once done this will define

OPENGL_FOUND - system has OpenGL
OPENGL_XMESA_FOUND - system has XMESA
OPENGL_GLU_FOUND - system has GLU
OPENGL_INCLUDE_DIR - the GL include directory
OPENGL_LIBRARIES - Link these to use OpenGL and GLU

If you want to use just GL you can use these values

OPENGL_gl_LIBRARY - Path to OpenGL Library
OPENGL_glu_LIBRARY - Path to GLU Library

On OSX default to using the framework version of opengl People
will have to change the cache values of OPENGL_glu_LIBRARY and
OPENGL_gl_LIBRARY to use OpenGL with X11 on OSX

FindOpenMP
Finds OpenMP support

This module can be used to detect OpenMP support in a compiler.
If the compiler supports OpenMP, the flags required to compile
with openmp support are set.

The following variables are set:

OpenMP_C_FLAGS - flags to add to the C compiler for OpenMP support
OpenMP_CXX_FLAGS - flags to add to the CXX compiler for OpenMP support
OPENMP_FOUND - true if openmp is detected

Supported compilers can be found at
http://openmp.org/wp/openmp-compilers/

FindOpenSSL
Try to find the OpenSSL encryption library

Once done this will define

OPENSSL_FOUND - system has the OpenSSL library
OPENSSL_INCLUDE_DIR - the OpenSSL include directory
OPENSSL_LIBRARIES - The libraries needed to use OpenSSL

FindOpenSceneGraph
Find OpenSceneGraph

This module searches for the OpenSceneGraph core "osg" library
as well as OpenThreads, and whatever additional COMPONENTS that
you specify.

See http://www.openscenegraph.org

NOTE: If you would like to use this module in your CMAKE_MOD‐
ULE_PATH instead of requiring CMake >= 2.6.3, you will also need
to download FindOpenThreads.cmake, Findosg_functions.cmake, Fin‐
dosg.cmake, as well as files for any Components you need to call
(FindosgDB.cmake, FindosgUtil.cmake, etc.)

==================================

This module accepts the following variables (note mixed case)

OpenSceneGraph_DEBUG - Enable debugging output

OpenSceneGraph_MARK_AS_ADVANCED - Mark cache variables as advanced
automatically

The following environment variables are also respected for find‐
ing the OSG and it's various components. CMAKE_PREFIX_PATH can
also be used for this (see find_library() CMake documentation).

<MODULE>_DIR (where MODULE is of the form "OSGVOLUME" and there is a FindosgVolume.cmake file)
OSG_DIR
OSGDIR
OSG_ROOT

This module defines the following output variables:

OPENSCENEGRAPH_FOUND - Was the OSG and all of the specified components found?

OPENSCENEGRAPH_VERSION - The version of the OSG which was found

OPENSCENEGRAPH_INCLUDE_DIRS - Where to find the headers

OPENSCENEGRAPH_LIBRARIES - The OSG libraries

================================== Example Usage:

find_package(OpenSceneGraph 2.0.0 COMPONENTS osgDB osgUtil)
include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS})

add_executable(foo foo.cc)
target_link_libraries(foo ${OPENSCENEGRAPH_LIBRARIES})

==================================

Naming convention:

Local variables of the form _osg_foo
Input variables of the form OpenSceneGraph_FOO
Output variables of the form OPENSCENEGRAPH_FOO

Redistribution AND use is allowed according to the terms of the
New BSD license. For details see the accompanying COPY‐
ING-CMAKE-SCRIPTS file.

==================================

FindOpenThreads

OpenThreads is a C++ based threading library. Its largest user‐
base seems to OpenSceneGraph so you might notice I accept
OSGDIR as an environment path. I consider this part of the Find‐
osg* suite used to find OpenSceneGraph components. Each compo‐
nent is separate and you must opt in to each module.

Locate OpenThreads This module defines OPENTHREADS_LIBRARY
OPENTHREADS_FOUND, if false, do not try to link to OpenThreads
OPENTHREADS_INCLUDE_DIR, where to find the headers

$OPENTHREADS_DIR is an environment variable that would corre‐
spond to the ./configure --prefix=$OPENTHREADS_DIR used in
building osg.

Created by Eric Wing.

FindPHP4
Find PHP4

This module finds if PHP4 is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

PHP4_INCLUDE_PATH = path to where php.h can be found
PHP4_EXECUTABLE = full path to the php4 binary

FindPNG
Find the native PNG includes and library

This module defines

PNG_INCLUDE_DIR, where to find png.h, etc.
PNG_LIBRARIES, the libraries to link against to use PNG.
PNG_DEFINITIONS - You should ADD_DEFINITONS(${PNG_DEFINITIONS}) before compiling code that includes png library files.
PNG_FOUND, If false, do not try to use PNG.

also defined, but not for general use are

PNG_LIBRARY, where to find the PNG library.

None of the above will be defined unles zlib can be found. PNG
depends on Zlib

FindPackageHandleStandardArgs

FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME (DEFAULT_MSG|"Custom
failure message") VAR1 ... )

This macro is intended to be used in FindXXX.cmake modules files.
It handles the REQUIRED and QUIET argument to FIND_PACKAGE() and
it also sets the <UPPERCASED_NAME>_FOUND variable.
The package is found if all variables listed are TRUE.
Example:

FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR)

LibXml2 is considered to be found, if both LIBXML2_LIBRARIES and
LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE.
If it is not found and REQUIRED was used, it fails with FATAL_ERROR,
independent whether QUIET was used or not.
If it is found, the location is reported using the VAR1 argument, so
here a message "Found LibXml2: /usr/lib/libxml2.so" will be printed out.
If the second argument is DEFAULT_MSG, the message in the failure case will
be "Could NOT find LibXml2", if you don't like this message you can specify
your own custom failure message there.

FindPackageMessage

FIND_PACKAGE_MESSAGE(<name> "message for user" "find result
details")

This macro is intended to be used in FindXXX.cmake modules
files. It will print a message once for each unique find result.
This is useful for telling the user where a package was found.
The first argument specifies the name (XXX) of the package. The
second argument specifies the message to display. The third
argument lists details about the find result so that if they
change the message will be displayed again. The macro also obeys
the QUIET argument to the find_package command.

Example:

IF(X11_FOUND)
FIND_PACKAGE_MESSAGE(X11 "Found X11: ${X11_X11_LIB}"
"[${X11_X11_LIB}][${X11_INCLUDE_DIR}]")
ELSE(X11_FOUND)
...
ENDIF(X11_FOUND)

FindPerl
Find perl

this module looks for Perl

PERL_EXECUTABLE - the full path to perl
PERL_FOUND - If false, don't attempt to use perl.

FindPerlLibs
Find Perl libraries

This module finds if PERL is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

PERL_INCLUDE_PATH = path to where perl.h is found
PERL_EXECUTABLE = full path to the perl binary

FindPhysFS

Locate PhysFS library This module defines PHYSFS_LIBRARY, the
name of the library to link against PHYSFS_FOUND, if false, do
not try to link to PHYSFS PHYSFS_INCLUDE_DIR, where to find
physfs.h

$PHYSFSDIR is an environment variable that would correspond to
the ./configure --prefix=$PHYSFSDIR used in building PHYSFS.

Created by Eric Wing.

FindPike
Find Pike

This module finds if PIKE is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

PIKE_INCLUDE_PATH = path to where program.h is found
PIKE_EXECUTABLE = full path to the pike binary

FindPkgConfig
a pkg-config module for CMake

Usage:

pkg_check_modules(<PREFIX> [REQUIRED] <MODULE> [<MODULE>]*)
checks for all the given modules

pkg_search_module(<PREFIX> [REQUIRED] <MODULE> [<MODULE>]*)
checks for given modules and uses the first working one

When the 'REQUIRED' argument was set, macros will fail with an
error when module(s) could not be found

It sets the following variables:

PKG_CONFIG_FOUND ... true if pkg-config works on the system
PKG_CONFIG_EXECUTABLE ... pathname of the pkg-config program
<PREFIX>_FOUND ... set to 1 if module(s) exist

For the following variables two sets of values exist; first one
is the common one and has the given PREFIX. The second set con‐
tains flags which are given out when pkgconfig was called with
the '--static' option.

<XPREFIX>_LIBRARIES ... only the libraries (w/o the '-l')
<XPREFIX>_LIBRARY_DIRS ... the paths of the libraries (w/o the '-L')
<XPREFIX>_LDFLAGS ... all required linker flags
<XPREFIX>_LDFLAGS_OTHER ... all other linker flags
<XPREFIX>_INCLUDE_DIRS ... the '-I' preprocessor flags (w/o the '-I')
<XPREFIX>_CFLAGS ... all required cflags
<XPREFIX>_CFLAGS_OTHER ... the other compiler flags

<XPREFIX> = <PREFIX> for common case
<XPREFIX> = <PREFIX>_STATIC for static linking

There are some special variables whose prefix depends on the
count of given modules. When there is only one module, <PREFIX>
stays unchanged. When there are multiple modules, the prefix
will be changed to <PREFIX>_<MODNAME>:

<XPREFIX>_VERSION ... version of the module
<XPREFIX>_PREFIX ... prefix-directory of the module
<XPREFIX>_INCLUDEDIR ... include-dir of the module
<XPREFIX>_LIBDIR ... lib-dir of the module

<XPREFIX> = <PREFIX> when |MODULES| == 1, else
<XPREFIX> = <PREFIX>_<MODNAME>

A <MODULE> parameter can have the following formats:

{MODNAME} ... matches any version
{MODNAME}>={VERSION} ... at least version <VERSION> is required
{MODNAME}={VERSION} ... exactly version <VERSION> is required
{MODNAME}<={VERSION} ... modules must not be newer than <VERSION>

Examples

pkg_check_modules (GLIB2 glib-2.0)

pkg_check_modules (GLIB2 glib-2.0>=2.10)
requires at least version 2.10 of glib2 and defines e.g.
GLIB2_VERSION=2.10.3

pkg_check_modules (FOO glib-2.0>=2.10 gtk+-2.0)
requires both glib2 and gtk2, and defines e.g.
FOO_glib-2.0_VERSION=2.10.3
FOO_gtk+-2.0_VERSION=2.8.20

pkg_check_modules (XRENDER REQUIRED xrender)
defines e.g.:
XRENDER_LIBRARIES=Xrender;X11
XRENDER_STATIC_LIBRARIES=Xrender;X11;pthread;Xau;Xdmcp

pkg_search_module (BAR libxml-2.0 libxml2 libxml>=2)

FindProducer

Though Producer isn't directly part of OpenSceneGraph, its pri‐
mary user is OSG so I consider this part of the Findosg* suite
used to find OpenSceneGraph components. You'll notice that I
accept OSGDIR as an environment path.

Each component is separate and you must opt in to each module.
You must also opt into OpenGL (and OpenThreads?) as these mod‐
ules won't do it for you. This is to allow you control over your
own system piece by piece in case you need to opt out of cer‐
tain components or change the Find behavior for a particular
module (perhaps because the default FindOpenGL.cmake module
doesn't work with your system as an example). If you want to use
a more convenient module that includes everything, use the Find‐
OpenSceneGraph.cmake instead of the Findosg*.cmake modules.

Locate Producer This module defines PRODUCER_LIBRARY PRO‐
DUCER_FOUND, if false, do not try to link to Producer PRO‐
DUCER_INCLUDE_DIR, where to find the headers

$PRODUCER_DIR is an environment variable that would correspond
to the ./configure --prefix=$PRODUCER_DIR used in building osg.

Created by Eric Wing.

FindPythonInterp
Find python interpreter

This module finds if Python interpreter is installed and deter‐
mines where the executables are. This code sets the following
variables:

PYTHONINTERP_FOUND - Was the Python executable found
PYTHON_EXECUTABLE - path to the Python interpreter

FindPythonLibs
Find python libraries

This module finds if Python is installed and determines where
the include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

PYTHONLIBS_FOUND = have the Python libs been found
PYTHON_LIBRARIES = path to the python library
PYTHON_INCLUDE_PATH = path to where Python.h is found
PYTHON_DEBUG_LIBRARIES = path to the debug library

FindQt Searches for all installed versions of QT.

This should only be used if your project can work with multiple
versions of QT. If not, you should just directly use FindQt4 or
FindQt3. If multiple versions of QT are found on the machine,
then The user must set the option DESIRED_QT_VERSION to the ver‐
sion they want to use. If only one version of qt is found on
the machine, then the DESIRED_QT_VERSION is set to that version
and the matching FindQt3 or FindQt4 module is included. Once
the user sets DESIRED_QT_VERSION, then the FindQt3 or FindQt4
module is included.

QT_REQUIRED if this is set to TRUE then if CMake can
not find QT4 or QT3 an error is raised
and a message is sent to the user.

DESIRED_QT_VERSION OPTION is created
QT4_INSTALLED is set to TRUE if qt4 is found.
QT3_INSTALLED is set to TRUE if qt3 is found.

FindQt3
Locate Qt include paths and libraries

This module defines:

QT_INCLUDE_DIR - where to find qt.h, etc.
QT_LIBRARIES - the libraries to link against to use Qt.
QT_DEFINITIONS - definitions to use when
compiling code that uses Qt.
QT_FOUND - If false, don't try to use Qt.

If you need the multithreaded version of Qt, set QT_MT_REQUIRED
to TRUE

Also defined, but not for general use are:

QT_MOC_EXECUTABLE, where to find the moc tool.
QT_UIC_EXECUTABLE, where to find the uic tool.
QT_QT_LIBRARY, where to find the Qt library.
QT_QTMAIN_LIBRARY, where to find the qtmain
library. This is only required by Qt3 on Windows.

FindQt4
Find QT 4

This module can be used to find Qt4. The most important issue is
that the Qt4 qmake is available via the system path. This qmake
is then used to detect basically everything else. This module
defines a number of key variables and macros. The variable
QT_USE_FILE is set which is the path to a CMake file that can be
included to compile Qt 4 applications and libraries. It sets
up the compilation environment for include directories, pre‐
processor defines and populates a QT_LIBRARIES variable.

Typical usage could be something like:

find_package(Qt4 4.4.3 COMPONENTS QtCore QtGui QtXml REQUIRED )
include(${QT_USE_FILE})
add_executable(myexe main.cpp)
target_link_libraries(myexe ${QT_LIBRARIES})

When using the components argument, QT_USE_QT* variables are
automatically set for the QT_USE_FILE to pick up. If one wishes
to manually set them, the available ones to set include:

QT_DONT_USE_QTCORE
QT_DONT_USE_QTGUI
QT_USE_QT3SUPPORT
QT_USE_QTASSISTANT
QT_USE_QAXCONTAINER
QT_USE_QAXSERVER
QT_USE_QTDESIGNER
QT_USE_QTMOTIF
QT_USE_QTMAIN
QT_USE_QTNETWORK
QT_USE_QTNSPLUGIN
QT_USE_QTOPENGL
QT_USE_QTSQL
QT_USE_QTXML
QT_USE_QTSVG
QT_USE_QTTEST
QT_USE_QTUITOOLS
QT_USE_QTDBUS
QT_USE_QTSCRIPT
QT_USE_QTASSISTANTCLIENT
QT_USE_QTHELP
QT_USE_QTWEBKIT
QT_USE_QTXMLPATTERNS
QT_USE_PHONON

There are also some files that need processing by some Qt tools
such as moc and uic. Listed below are macros that may be used
to process those files.

macro QT4_WRAP_CPP(outfiles inputfile ... OPTIONS ...)
create moc code from a list of files containing Qt class with
the Q_OBJECT declaration. Per-direcotry preprocessor definitions
are also added. Options may be given to moc, such as those found
when executing "moc -help".

macro QT4_WRAP_UI(outfiles inputfile ... OPTIONS ...)
create code from a list of Qt designer ui files.
Options may be given to uic, such as those found
when executing "uic -help"

macro QT4_ADD_RESOURCES(outfiles inputfile ... OPTIONS ...)
create code from a list of Qt resource files.
Options may be given to rcc, such as those found
when executing "rcc -help"

macro QT4_GENERATE_MOC(inputfile outputfile )
creates a rule to run moc on infile and create outfile.
Use this if for some reason QT4_WRAP_CPP() isn't appropriate, e.g.
because you need a custom filename for the moc file or something similar.

macro QT4_AUTOMOC(sourcefile1 sourcefile2 ... )
This macro is still experimental.
It can be used to have moc automatically handled.
So if you have the files foo.h and foo.cpp, and in foo.h a
a class uses the Q_OBJECT macro, moc has to run on it. If you don't
want to use QT4_WRAP_CPP() (which is reliable and mature), you can insert
#include "foo.moc"
in foo.cpp and then give foo.cpp as argument to QT4_AUTOMOC(). This will the
scan all listed files at cmake-time for such included moc files and if it finds
them cause a rule to be generated to run moc at build time on the
accompanying header file foo.h.
If a source file has the SKIP_AUTOMOC property set it will be ignored by this macro.

macro QT4_ADD_DBUS_INTERFACE(outfiles interface basename)
create a the interface header and implementation files with the
given basename from the given interface xml file and add it to
the list of sources

macro QT4_ADD_DBUS_INTERFACES(outfiles inputfile ... )
create the interface header and implementation files
for all listed interface xml files
the name will be automatically determined from the name of the xml file

macro QT4_ADD_DBUS_ADAPTOR(outfiles xmlfile parentheader parentclassname [basename] )
create a dbus adaptor (header and implementation file) from the xml file
describing the interface, and add it to the list of sources. The adaptor
forwards the calls to a parent class, defined in parentheader and named
parentclassname. The name of the generated files will be
<basename>adaptor.{cpp,h} where basename is the basename of the xml file.

macro QT4_GENERATE_DBUS_INTERFACE( header [interfacename] )
generate the xml interface file from the given header.
If the optional argument interfacename is omitted, the name of the
interface file is constructed from the basename of the header with
the suffix .xml appended.

macro QT4_CREATE_TRANSLATION( qm_files directories ... sources ...
ts_files ... OPTIONS ...)
out: qm_files
in: directories sources ts_files
options: flags to pass to lupdate, such as -extensions to specify
extensions for a directory scan.
generates commands to create .ts (vie lupdate) and .qm
(via lrelease) - files from directories and/or sources. The ts files are
created and/or updated in the source tree (unless given with full paths).
The qm files are generated in the build tree.
Updating the translations can be done by adding the qm_files
to the source list of your library/executable, so they are
always updated, or by adding a custom target to control when
they get updated/generated.

macro QT4_ADD_TRANSLATION( qm_files ts_files ... )
out: qm_files
in: ts_files
generates commands to create .qm from .ts - files. The generated
filenames can be found in qm_files. The ts_files
must exists and are not updated in any way.

Below is a detailed list of variables that FindQt4.cmake sets.
QT_FOUND If false, don't try to use Qt.
QT4_FOUND If false, don't try to use Qt 4.

QT_VERSION_MAJOR The major version of Qt found.
QT_VERSION_MINOR The minor version of Qt found.
QT_VERSION_PATCH The patch version of Qt found.

QT_EDITION Set to the edition of Qt (i.e. DesktopLight)
QT_EDITION_DESKTOPLIGHT True if QT_EDITION == DesktopLight
QT_QTCORE_FOUND True if QtCore was found.
QT_QTGUI_FOUND True if QtGui was found.
QT_QT3SUPPORT_FOUND True if Qt3Support was found.
QT_QTASSISTANT_FOUND True if QtAssistant was found.
QT_QAXCONTAINER_FOUND True if QAxContainer was found (Windows only).
QT_QAXSERVER_FOUND True if QAxServer was found (Windows only).
QT_QTDBUS_FOUND True if QtDBus was found.
QT_QTDESIGNER_FOUND True if QtDesigner was found.
QT_QTDESIGNERCOMPONENTS True if QtDesignerComponents was found.
QT_QTMOTIF_FOUND True if QtMotif was found.
QT_QTNETWORK_FOUND True if QtNetwork was found.
QT_QTNSPLUGIN_FOUND True if QtNsPlugin was found.
QT_QTOPENGL_FOUND True if QtOpenGL was found.
QT_QTSQL_FOUND True if QtSql was found.
QT_QTXML_FOUND True if QtXml was found.
QT_QTSVG_FOUND True if QtSvg was found.
QT_QTSCRIPT_FOUND True if QtScript was found.
QT_QTTEST_FOUND True if QtTest was found.
QT_QTUITOOLS_FOUND True if QtUiTools was found.
QT_QTASSISTANTCLIENT_FOUND True if QtAssistantClient was found.
QT_QTHELP_FOUND True if QtHelp was found.
QT_QTWEBKIT_FOUND True if QtWebKit was found.
QT_QTXMLPATTERNS_FOUND True if QtXmlPatterns was found.
QT_PHONON_FOUND True if phonon was found.

QT_DEFINITIONS Definitions to use when compiling code that uses Qt.
You do not need to use this if you include QT_USE_FILE.
The QT_USE_FILE will also define QT_DEBUG and QT_NO_DEBUG
to fit your current build type. Those are not contained
in QT_DEFINITIONS.

QT_INCLUDES List of paths to all include directories of
Qt4 QT_INCLUDE_DIR and QT_QTCORE_INCLUDE_DIR are
always in this variable even if NOTFOUND,
all other INCLUDE_DIRS are
only added if they are found.
You do not need to use this if you include QT_USE_FILE.

Include directories for the Qt modules are listed here.
You do not need to use these variables if you include QT_USE_FILE.

QT_INCLUDE_DIR Path to "include" of Qt4
QT_QT3SUPPORT_INCLUDE_DIR Path to "include/Qt3Support"
QT_QTASSISTANT_INCLUDE_DIR Path to "include/QtAssistant"
QT_QAXCONTAINER_INCLUDE_DIR Path to "include/ActiveQt" (Windows only)
QT_QAXSERVER_INCLUDE_DIR Path to "include/ActiveQt" (Windows only)
QT_QTCORE_INCLUDE_DIR Path to "include/QtCore"
QT_QTDESIGNER_INCLUDE_DIR Path to "include/QtDesigner"
QT_QTDESIGNERCOMPONENTS_INCLUDE_DIR Path to "include/QtDesigner"
QT_QTDBUS_INCLUDE_DIR Path to "include/QtDBus"
QT_QTGUI_INCLUDE_DIR Path to "include/QtGui"
QT_QTMOTIF_INCLUDE_DIR Path to "include/QtMotif"
QT_QTNETWORK_INCLUDE_DIR Path to "include/QtNetwork"
QT_QTNSPLUGIN_INCLUDE_DIR Path to "include/QtNsPlugin"
QT_QTOPENGL_INCLUDE_DIR Path to "include/QtOpenGL"
QT_QTSQL_INCLUDE_DIR Path to "include/QtSql"
QT_QTXML_INCLUDE_DIR Path to "include/QtXml"
QT_QTSVG_INCLUDE_DIR Path to "include/QtSvg"
QT_QTSCRIPT_INCLUDE_DIR Path to "include/QtScript"
QT_QTTEST_INCLUDE_DIR Path to "include/QtTest"
QT_QTASSISTANTCLIENT_INCLUDE_DIR Path to "include/QtAssistant"
QT_QTHELP_INCLUDE_DIR Path to "include/QtHelp"
QT_QTWEBKIT_INCLUDE_DIR Path to "include/QtWebKit"
QT_QTXMLPATTERNS_INCLUDE_DIR Path to "include/QtXmlPatterns"
QT_PHONON_INCLUDE_DIR Path to "include/phonon"

QT_BINARY_DIR Path to "bin" of Qt4
QT_LIBRARY_DIR Path to "lib" of Qt4
QT_PLUGINS_DIR Path to "plugins" for Qt4
QT_TRANSLATIONS_DIR Path to "translations" of Qt4
QT_DOC_DIR Path to "doc" of Qt4
QT_MKSPECS_DIR Path to "mkspecs" of Qt4

The Qt toolkit may contain both debug and release libraries. In
that case, the following library variables will contain both.
You do not need to use these variables if you include
QT_USE_FILE, and use QT_LIBRARIES.

QT_QT3SUPPORT_LIBRARY The Qt3Support library
QT_QTASSISTANT_LIBRARY The QtAssistant library
QT_QAXCONTAINER_LIBRARY The QAxContainer library (Windows only)
QT_QAXSERVER_LIBRARY The QAxServer library (Windows only)
QT_QTCORE_LIBRARY The QtCore library
QT_QTDBUS_LIBRARY The QtDBus library
QT_QTDESIGNER_LIBRARY The QtDesigner library
QT_QTDESIGNERCOMPONENTS_LIBRARY The QtDesignerComponents library
QT_QTGUI_LIBRARY The QtGui library
QT_QTMOTIF_LIBRARY The QtMotif library
QT_QTNETWORK_LIBRARY The QtNetwork library
QT_QTNSPLUGIN_LIBRARY The QtNsPLugin library
QT_QTOPENGL_LIBRARY The QtOpenGL library
QT_QTSQL_LIBRARY The QtSql library
QT_QTXML_LIBRARY The QtXml library
QT_QTSVG_LIBRARY The QtSvg library
QT_QTSCRIPT_LIBRARY The QtScript library
QT_QTTEST_LIBRARY The QtTest library
QT_QTMAIN_LIBRARY The qtmain library for Windows
QT_QTUITOOLS_LIBRARY The QtUiTools library
QT_QTASSISTANTCLIENT_LIBRARY The QtAssistantClient library
QT_QTHELP_LIBRARY The QtHelp library
QT_QTWEBKIT_LIBRARY The QtWebKit library
QT_QTXMLPATTERNS_LIBRARY The QtXmlPatterns library
QT_PHONON_LIBRARY The phonon library

also defined, but NOT for general use are

QT_MOC_EXECUTABLE Where to find the moc tool.
QT_UIC_EXECUTABLE Where to find the uic tool.
QT_UIC3_EXECUTABLE Where to find the uic3 tool.
QT_RCC_EXECUTABLE Where to find the rcc tool
QT_DBUSCPP2XML_EXECUTABLE Where to find the qdbuscpp2xml tool.
QT_DBUSXML2CPP_EXECUTABLE Where to find the qdbusxml2cpp tool.
QT_LUPDATE_EXECUTABLE Where to find the lupdate tool.
QT_LRELEASE_EXECUTABLE Where to find the lrelease tool.

These are around for backwards compatibility they will be set

QT_WRAP_CPP Set true if QT_MOC_EXECUTABLE is found
QT_WRAP_UI Set true if QT_UIC_EXECUTABLE is found

These variables do _NOT_ have any effect anymore (compared to
FindQt.cmake)

QT_MT_REQUIRED Qt4 is now always multithreaded

These variables are set to "" Because Qt structure changed
(They make no sense in Qt4)

QT_QT_LIBRARY Qt-Library is now split

FindQuickTime

Locate QuickTime This module defines QUICKTIME_LIBRARY QUICK‐
TIME_FOUND, if false, do not try to link to gdal QUICK‐
TIME_INCLUDE_DIR, where to find the headers

$QUICKTIME_DIR is an environment variable that would correspond
to the ./configure --prefix=$QUICKTIME_DIR

Created by Eric Wing.

FindRTI
Try to find M&S HLA RTI libraries

This module finds if any HLA RTI is installed and locates the
standard RTI include files and libraries.

RTI is a simulation infrastructure standartized by IEEE and
SISO. It has a well defined C++ API that assures that simulation
applications are independent on a particular RTI implementation.
http://en.wikipedia.org/wiki/Run-Time_Infrastructure_(simula‐
tion)

This code sets the following variables:

RTI_INCLUDE_DIR = the directory where RTI includes file are found
RTI_LIBRARIES = The libraries to link against to use RTI
RTI_DEFINITIONS = -DRTI_USES_STD_FSTREAM
RTI_FOUND = Set to FALSE if any HLA RTI was not found

Report problems to <certi-devel@nongnu.org>

FindRuby
Find Ruby

This module finds if Ruby is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

RUBY_INCLUDE_PATH = path to where ruby.h can be found
RUBY_EXECUTABLE = full path to the ruby binary
RUBY_LIBRARY = full path to the ruby library

FindSDL

Locate SDL library This module defines SDL_LIBRARY, the name of
the library to link against SDL_FOUND, if false, do not try to
link to SDL SDL_INCLUDE_DIR, where to find SDL.h

This module responds to the the flag: SDL_BUILDING_LIBRARY If
this is defined, then no SDL_main will be linked in because
only applications need main(). Otherwise, it is assumed you are
building an application and this module will attempt to locate
and set the the proper link flags as part of the returned
SDL_LIBRARY variable.

Don't forget to include SDLmain.h and SDLmain.m your project for
the OS X framework based version. (Other versions link to
-lSDLmain which this module will try to find on your behalf.)
Also for OS X, this module will automatically add the -frame‐
work Cocoa on your behalf.

Additional Note: If you see an empty SDL_LIBRARY_TEMP in your
configuration and no SDL_LIBRARY, it means CMake did not find
your SDL library (SDL.dll, libsdl.so, SDL.framework, etc). Set
SDL_LIBRARY_TEMP to point to your SDL library, and configure
again. Similarly, if you see an empty SDLMAIN_LIBRARY, you
should set this value as appropriate. These values are used to
generate the final SDL_LIBRARY variable, but when these values
are unset, SDL_LIBRARY does not get created.

$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL. l.e.galup
9-20-02

Modified by Eric Wing. Added code to assist with automated
building by using environmental variables and providing a more
controlled/consistent search behavior. Added new modifications
to recognize OS X frameworks and additional Unix paths (Free‐
BSD, etc). Also corrected the header search path to follow
"proper" SDL guidelines. Added a search for SDLmain which is
needed by some platforms. Added a search for threads which is
needed by some platforms. Added needed compile switches for
MinGW.

On OSX, this will prefer the Framework version (if found) over
others. People will have to manually change the cache values of
SDL_LIBRARY to override this selection or set the CMake environ‐
ment CMAKE_INCLUDE_PATH to modify the search paths.

Note that the header path has changed from SDL/SDL.h to just
SDL.h This needed to change because "proper" SDL convention is
#include "SDL.h", not <SDL/SDL.h>. This is done for portability
reasons because not all systems place things in SDL/ (see Free‐
BSD).

FindSDL_image

Locate SDL_image library This module defines SDLIMAGE_LIBRARY,
the name of the library to link against SDLIMAGE_FOUND, if
false, do not try to link to SDL SDLIMAGE_INCLUDE_DIR, where to
find SDL/SDL.h

$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.

Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).

FindSDL_mixer

Locate SDL_mixer library This module defines SDLMIXER_LIBRARY,
the name of the library to link against SDLMIXER_FOUND, if
false, do not try to link to SDL SDLMIXER_INCLUDE_DIR, where to
find SDL/SDL.h

$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.

Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).

FindSDL_net

Locate SDL_net library This module defines SDLNET_LIBRARY, the
name of the library to link against SDLNET_FOUND, if false, do
not try to link against SDLNET_INCLUDE_DIR, where to find the
headers

$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.

Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).

FindSDL_sound

Locates the SDL_sound library

FindSDL_ttf

Locate SDL_ttf library This module defines SDLTTF_LIBRARY, the
name of the library to link against SDLTTF_FOUND, if false, do
not try to link to SDL SDLTTF_INCLUDE_DIR, where to find
SDL/SDL.h

$SDLDIR is an environment variable that would correspond to the
./configure --prefix=$SDLDIR used in building SDL.

Created by Eric Wing. This was influenced by the FindSDL.cmake
module, but with modifications to recognize OS X frameworks and
additional Unix paths (FreeBSD, etc).

FindSWIG
Find SWIG

This module finds an installed SWIG. It sets the following
variables:

SWIG_FOUND - set to true if SWIG is found
SWIG_DIR - the directory where swig is installed
SWIG_EXECUTABLE - the path to the swig executable
SWIG_VERSION - the version number of the swig executable

All informations are collected from the SWIG_EXECUTABLE so the
version to be found can be changed from the command line by
means of setting SWIG_EXECUTABLE

FindSelfPackers
Find upx

This module looks for some executable packers (i.e. softwares
that compress executables or shared libs into on-the-fly
self-extracting executables or shared libs. Examples:

UPX: http://wildsau.idv.uni-linz.ac.at/mfx/upx.html

FindSquish
-- Typical Use

This module can be used to find Squish (currently support is
aimed at version 3).

SQUISH_FOUND If false, don't try to use
Squish SQUISH_VERSION_MAJOR The major version of
Squish found SQUISH_VERSION_MINOR The minor version
of Squish found SQUISH_VERSION_PATCH The patch ver‐
sion of Squish found

SQUISH_INSTALL_DIR The Squish installation direc‐
tory (containing bin, lib, etc) SQUISH_SERVER_EXECUTABLE
The squishserver executable SQUISH_CLIENT_EXECUTABLE The
squishrunner executable

SQUISH_INSTALL_DIR_FOUND Was the install directory found?
SQUISH_SERVER_EXECUTABLE_FOUND Was the server executable found?
SQUISH_CLIENT_EXECUTABLE_FOUND Was the client executable found?

macro SQUISH_ADD_TEST(testName applicationUnderTest testSuite
testCase)

ENABLE_TESTING() FIND_PACKAGE(Squish) IF (SQUISH_FOUND)

SQUISH_ADD_TEST(myTestName myApplication testSuiteName testCaseName)

ENDIF (SQUISH_FOUND)

FindSubversion
Extract information from a subversion working copy

The module defines the following variables:

Subversion_SVN_EXECUTABLE - path to svn command line client
Subversion_VERSION_SVN - version of svn command line client
Subversion_FOUND - true if the command line client was found

If the command line client executable is found the macro

Subversion_WC_INFO(<dir> <var-prefix>)

is defined to extract information of a subversion working copy
at a given location. The macro defines the following variables:

<var-prefix>_WC_URL - url of the repository (at <dir>)
<var-prefix>_WC_ROOT - root url of the repository
<var-prefix>_WC_REVISION - current revision
<var-prefix>_WC_LAST_CHANGED_AUTHOR - author of last commit
<var-prefix>_WC_LAST_CHANGED_DATE - date of last commit
<var-prefix>_WC_LAST_CHANGED_REV - revision of last commit
<var-prefix>_WC_LAST_CHANGED_LOG - last log of base revision
<var-prefix>_WC_INFO - output of command `svn info <dir>'

Example usage:

FIND_PACKAGE(Subversion)
IF(Subversion_FOUND)
Subversion_WC_INFO(${PROJECT_SOURCE_DIR} Project)
MESSAGE("Current revision is ${Project_WC_REVISION}")
Subversion_WC_LOG(${PROJECT_SOURCE_DIR} Project)
MESSAGE("Last changed log is ${Project_LAST_CHANGED_LOG}")
ENDIF(Subversion_FOUND)

FindTCL
TK_INTERNAL_PATH was removed.

This module finds if Tcl is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

TCL_FOUND = Tcl was found
TK_FOUND = Tk was found
TCLTK_FOUND = Tcl and Tk were found
TCL_LIBRARY = path to Tcl library (tcl tcl80)
TCL_INCLUDE_PATH = path to where tcl.h can be found
TCL_TCLSH = path to tclsh binary (tcl tcl80)
TK_LIBRARY = path to Tk library (tk tk80 etc)
TK_INCLUDE_PATH = path to where tk.h can be found
TK_WISH = full path to the wish executable

In an effort to remove some clutter and clear up some issues for
people who are not necessarily Tcl/Tk gurus/developpers, some
variables were moved or removed. Changes compared to CMake 2.4
are:

=> they were only useful for people writing Tcl/Tk extensions.
=> these libs are not packaged by default with Tcl/Tk distributions.
Even when Tcl/Tk is built from source, several flavors of debug libs
are created and there is no real reason to pick a single one
specifically (say, amongst tcl84g, tcl84gs, or tcl84sgx).
Let's leave that choice to the user by allowing him to assign
TCL_LIBRARY to any Tcl library, debug or not.
=> this ended up being only a Win32 variable, and there is a lot of
confusion regarding the location of this file in an installed Tcl/Tk
tree anyway (see 8.5 for example). If you need the internal path at
this point it is safer you ask directly where the *source* tree is
and dig from there.

FindTIFF
Find TIFF library

Find the native TIFF includes and library This module defines

TIFF_INCLUDE_DIR, where to find tiff.h, etc.
TIFF_LIBRARIES, libraries to link against to use TIFF.
TIFF_FOUND, If false, do not try to use TIFF.

also defined, but not for general use are

TIFF_LIBRARY, where to find the TIFF library.

FindTclStub
TCL_STUB_LIBRARY_DEBUG and TK_STUB_LIBRARY_DEBUG were removed.

This module finds Tcl stub libraries. It first finds Tcl include
files and libraries by calling FindTCL.cmake. How to Use the Tcl
Stubs Library:

http://tcl.activestate.com/doc/howto/stubs.html

Using Stub Libraries:

http://safari.oreilly.com/0130385603/ch48lev1sec3

This code sets the following variables:

TCL_STUB_LIBRARY = path to Tcl stub library
TK_STUB_LIBRARY = path to Tk stub library
TTK_STUB_LIBRARY = path to ttk stub library

In an effort to remove some clutter and clear up some issues for
people who are not necessarily Tcl/Tk gurus/developpers, some
variables were moved or removed. Changes compared to CMake 2.4
are:

=> these libs are not packaged by default with Tcl/Tk distributions.
Even when Tcl/Tk is built from source, several flavors of debug libs
are created and there is no real reason to pick a single one
specifically (say, amongst tclstub84g, tclstub84gs, or tclstub84sgx).
Let's leave that choice to the user by allowing him to assign
TCL_STUB_LIBRARY to any Tcl library, debug or not.

FindTclsh
Find tclsh

This module finds if TCL is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

TCLSH_FOUND = TRUE if tclsh has been found
TCL_TCLSH = the path to the tclsh executable

In cygwin, look for the cygwin version first. Don't look for it
later to avoid finding the cygwin version on a Win32 build.

FindThreads
This module determines the thread library of the system.

The following variables are set

CMAKE_THREAD_LIBS_INIT - the thread library
CMAKE_USE_SPROC_INIT - are we using sproc?
CMAKE_USE_WIN32_THREADS_INIT - using WIN32 threads?
CMAKE_USE_PTHREADS_INIT - are we using pthreads
CMAKE_HP_PTHREADS_INIT - are we using hp pthreads

FindUnixCommands
Find unix commands from cygwin

This module looks for some usual Unix commands.

FindVTK
Find a VTK installation or build tree.

The following variables are set if VTK is found. If VTK is not
found, VTK_FOUND is set to false.

VTK_FOUND - Set to true when VTK is found.
VTK_USE_FILE - CMake file to use VTK.
VTK_MAJOR_VERSION - The VTK major version number.
VTK_MINOR_VERSION - The VTK minor version number
(odd non-release).
VTK_BUILD_VERSION - The VTK patch level
(meaningless for odd minor).
VTK_INCLUDE_DIRS - Include directories for VTK
VTK_LIBRARY_DIRS - Link directories for VTK libraries
VTK_KITS - List of VTK kits, in CAPS
(COMMON,IO,) etc.
VTK_LANGUAGES - List of wrapped languages, in CAPS
(TCL, PYHTON,) etc.

The following cache entries must be set by the user to locate
VTK:

VTK_DIR - The directory containing VTKConfig.cmake.
This is either the root of the build tree,
or the lib/vtk directory. This is the
only cache entry.

The following variables are set for backward compatibility and
should not be used in new code:

USE_VTK_FILE - The full path to the UseVTK.cmake file.
This is provided for backward
compatibility. Use VTK_USE_FILE
instead.

FindWget
Find wget

This module looks for wget. This module defines the following
values:

WGET_EXECUTABLE: the full path to the wget tool.
WGET_FOUND: True if wget has been found.

FindWish
Find wish installation

This module finds if TCL is installed and determines where the
include files and libraries are. It also determines what the
name of the library is. This code sets the following variables:

TK_WISH = the path to the wish executable

if UNIX is defined, then it will look for the cygwin version
first

FindX11
Find X11 installation

Try to find X11 on UNIX systems. The following values are
defined

X11_FOUND - True if X11 is available
X11_INCLUDE_DIR - include directories to use X11
X11_LIBRARIES - link against these to use X11

and also the following more fine grained variables: Include
paths: X11_ICE_INCLUDE_PATH, X11_ICE_LIB,
X11_ICE_FOUND

X11_Xaccessrules_INCLUDE_PATH, X11_Xaccess_FOUND
X11_Xaccessstr_INCLUDE_PATH, X11_Xaccess_FOUND
X11_Xau_INCLUDE_PATH, X11_Xau_LIB, X11_Xau_FOUND
X11_Xcomposite_INCLUDE_PATH, X11_Xcomposite_LIB, X11_Xcomposite_FOUND
X11_Xcursor_INCLUDE_PATH, X11_Xcursor_LIB, X11_Xcursor_FOUND
X11_Xdamage_INCLUDE_PATH, X11_Xdamage_LIB, X11_Xdamage_FOUND
X11_Xdmcp_INCLUDE_PATH, X11_Xdmcp_LIB, X11_Xdmcp_FOUND
X11_Xext_LIB, X11_Xext_FOUND
X11_dpms_INCLUDE_PATH, (in X11_Xext_LIB), X11_dpms_FOUND
X11_XShm_INCLUDE_PATH, (in X11_Xext_LIB), X11_XShm_FOUND
X11_Xshape_INCLUDE_PATH, (in X11_Xext_LIB), X11_Xshape_FOUND
X11_xf86misc_INCLUDE_PATH, X11_Xxf86misc_LIB, X11_xf86misc_FOUND
X11_xf86vmode_INCLUDE_PATH, X11_xf86vmode_FOUND
X11_Xfixes_INCLUDE_PATH, X11_Xfixes_LIB, X11_Xfixes_FOUND
X11_Xft_INCLUDE_PATH, X11_Xft_LIB, X11_Xft_FOUND
X11_Xinerama_INCLUDE_PATH, X11_Xinerama_LIB, X11_Xinerama_FOUND
X11_Xinput_INCLUDE_PATH, X11_Xinput_LIB, X11_Xinput_FOUND
X11_Xkb_INCLUDE_PATH, X11_Xkb_FOUND
X11_Xkblib_INCLUDE_PATH, X11_Xkb_FOUND
X11_Xpm_INCLUDE_PATH, X11_Xpm_LIB, X11_Xpm_FOUND
X11_XTest_INCLUDE_PATH, X11_XTest_LIB, X11_XTest_FOUND
X11_Xrandr_INCLUDE_PATH, X11_Xrandr_LIB, X11_Xrandr_FOUND
X11_Xrender_INCLUDE_PATH, X11_Xrender_LIB, X11_Xrender_FOUND
X11_Xscreensaver_INCLUDE_PATH, X11_Xscreensaver_LIB, X11_Xscreensaver_FOUND
X11_Xt_INCLUDE_PATH, X11_Xt_LIB, X11_Xt_FOUND
X11_Xutil_INCLUDE_PATH, X11_Xutil_FOUND
X11_Xv_INCLUDE_PATH, X11_Xv_LIB, X11_Xv_FOUND

FindXMLRPC
Find xmlrpc

Find the native XMLRPC headers and libraries.

XMLRPC_INCLUDE_DIRS - where to find xmlrpc.h, etc.
XMLRPC_LIBRARIES - List of libraries when using xmlrpc.
XMLRPC_FOUND - True if xmlrpc found.

XMLRPC modules may be specified as components for this find mod‐
ule. Modules may be listed by running "xmlrpc-c-config". Mod‐
ules include:

c++ C++ wrapper code
libwww-client libwww-based client
cgi-server CGI-based server
abyss-server ABYSS-based server

Typical usage:

FIND_PACKAGE(XMLRPC REQUIRED libwww-client)

FindZLIB
Find zlib

Find the native ZLIB includes and library

ZLIB_INCLUDE_DIR - where to find zlib.h, etc.
ZLIB_LIBRARIES - List of libraries when using zlib.
ZLIB_FOUND - True if zlib found.

Findosg

NOTE: It is highly recommended that you use the new FindOpen‐
SceneGraph.cmake introduced in CMake 2.6.3 and not use this Find
module directly.

This is part of the Findosg* suite used to find OpenSceneGraph
components. Each component is separate and you must opt in to
each module. You must also opt into OpenGL and OpenThreads (and
Producer if needed) as these modules won't do it for you. This
is to allow you control over your own system piece by piece in
case you need to opt out of certain components or change the
Find behavior for a particular module (perhaps because the
default FindOpenGL.cmake module doesn't work with your system as
an example). If you want to use a more convenient module that
includes everything, use the FindOpenSceneGraph.cmake instead of
the Findosg*.cmake modules.

Locate osg This module defines

OSG_FOUND - Was the Osg found? OSG_INCLUDE_DIR - Where to find
the headers OSG_LIBRARIES - The libraries to link against for
the OSG (use this)

OSG_LIBRARY - The OSG library OSG_LIBRARY_DEBUG - The OSG debug
library