ExtUtils::MM_VMS(Perl Programmers Reference GExtUtils::MM_VMS(3p)NAMEExtUtils::MM_VMS - methods to override UN*X behaviour in
ExtUtils::MakeMaker
SYNOPSIS
Do not use this directly.
Instead, use ExtUtils::MM and it will figure out which MM_*
class to use for you.
DESCRIPTION
See ExtUtils::MM_Unix for a documentation of the methods
provided there. This package overrides the implementation of
these methods, not the semantics.
Methods always loaded
wraplist
Converts a list into a string wrapped at approximately
80 columns.
Methods
Those methods which override default MM_Unix methods are
marked "(override)", while methods unique to MM_VMS are
marked "(specific)". For overridden methods, documentation
is limited to an explanation of why this method overrides
the MM_Unix method; see the ExtUtils::MM_Unix documentation
for more details.
guess_name (override)
Try to determine name of extension being built. We
begin with the name of the current directory. Since VMS
filenames are case-insensitive, however, we look for a
.pm file whose name matches that of the current direc-
tory (presumably the 'main' .pm file for this exten-
sion), and try to find a "package" statement from which
to obtain the Mixed::Case package name.
find_perl (override)
Use VMS file specification syntax and CLI commands to
find and invoke Perl images.
maybe_command (override)
Follows VMS naming conventions for executable files. If
the name passed in doesn't exactly match an executable
file, appends .Exe (or equivalent) to check for execut-
able image, and .Com to check for DCL procedure. If
this fails, checks directories in DCL$PATH and finally
Sys$System: for an executable file having the name
specified, with or without the .Exe-equivalent suffix.
pasthru (override)
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VMS has $(MMSQUALIFIERS) which is a listing of all the
original command line options. This is used in every
invokation of make in the VMS Makefile so PASTHRU should
not be necessary. Using PASTHRU tends to blow commands
past the 256 character limit.
pm_to_blib (override)
VMS wants a dot in every file so we can't have one
called 'pm_to_blib', it becomes 'pm_to_blib.' and MMS/K
isn't smart enough to know that when you have a target
called 'pm_to_blib' it should look for 'pm_to_blib.'.
So in VMS its pm_to_blib.ts.
perl_script (override)
If name passed in doesn't specify a readable file,
appends .com or .pl and tries again, since it's cus-
tomary to have file types on all files under VMS.
replace_manpage_separator
Use as separator a character which is legal in a VMS-
syntax file name.
init_DEST
(override) Because of the difficulty concatenating VMS
filepaths we must pre-expand the DEST* variables.
init_DIRFILESEP
No seperator between a directory path and a filename on
VMS.
init_main (override)
init_others (override)
Provide VMS-specific forms of various utility commands,
then hand off to the default MM_Unix method.
DEV_NULL should probably be overriden with something.
Also changes EQUALIZE_TIMESTAMP to set revision date of
target file to one second later than source file, since
MMK interprets precisely equal revision dates for a
source and target file as a sign that the target needs
to be updated.
init_platform (override)
Add PERL_VMS, MM_VMS_REVISION and MM_VMS_VERSION.
MM_VMS_REVISION is for backwards compatibility before
MM_VMS had a $VERSION.
platform_constants
init_VERSION (override)
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Override the *DEFINE_VERSION macros with VMS semantics.
Translate the MAKEMAKER filepath to VMS style.
constants (override)
Fixes up numerous file and directory macros to insure
VMS syntax regardless of input syntax. Also makes lists
of files comma-separated.
special_targets
Clear the default .SUFFIXES and put in our own list.
cflags (override)
Bypass shell script and produce qualifiers for CC
directly (but warn user if a shell script for this
extension exists). Fold multiple /Defines into one,
since some C compilers pay attention to only one
instance of this qualifier on the command line.
const_cccmd (override)
Adds directives to point C preprocessor to the right
place when handling #include <sys/foo.h> directives.
Also constructs CC command line a bit differently than
MM_Unix method.
tools_other (override)
Throw in some dubious extra macros for Makefile args.
Also keep around the old $(SAY) macro in case somebody's
using it.
init_dist (override)
VMSish defaults for some values.
macro description default
ZIPFLAGS flags to pass to ZIP -Vu
COMPRESS compression command to gzip
use for tarfiles
SUFFIX suffix to put on -gz
compressed files
SHAR shar command to use vms_share
DIST_DEFAULT default target to use to tardist
create a distribution
DISTVNAME Use VERSION_SYM instead of $(DISTNAME)-$(VERSION_SYM)
VERSION for the name
c_o (override)
Use VMS syntax on command line. In particular,
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$(DEFINE) and $(PERL_INC) have been pulled into
$(CCCMD). Also use MM[SK] macros.
xs_c (override)
Use MM[SK] macros.
xs_o (override)
Use MM[SK] macros, and VMS command line for C compiler.
dlsyms (override)
Create VMS linker options files specifying universal
symbols for this extension's shareable image, and list-
ing other shareable images or libraries to which it
should be linked.
dynamic_lib (override)
Use VMS Link command.
static_lib (override)
Use VMS commands to manipulate object library.
extra_clean_files
Clean up some OS specific files. Plus the temp file
used to shorten a lot of commands.
zipfile_target
tarfile_target
shdist_target
Syntax for invoking shar, tar and zip differs from that
for Unix.
install (override)
Work around DCL's 255 character limit several times,and
use VMS-style command line quoting in a few cases.
perldepend (override)
Use VMS-style syntax for files; it's cheaper to just do
it directly here than to have the MM_Unix method call
"catfile" repeatedly. Also, if we have to rebuild
Config.pm, use MM[SK] to do it.
makeaperl (override)
Undertake to build a new set of Perl images using VMS
commands. Since VMS does dynamic loading, it's not
necessary to statically link each extension into the
Perl image, so this isn't the normal build path. Conse-
quently, it hasn't really been tested, and may well be
incomplete.
nicetext (override)
Insure that colons marking targets are preceded by
space, in order to distinguish the target delimiter from
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a colon appearing as part of a filespec.
prefixify (override)
prefixifying on VMS is simple. Each should simply be:
perl_root:[some.dir]
which can just be converted to:
volume:[your.prefix.some.dir]
otherwise you get the default layout.
In effect, your search prefix is ignored and
$Config{vms_prefix} is used instead.
cd
oneliner
echo
perl trips up on "<foo>" thinking it's an input
redirect. So we use the native Write command instead.
Besides, its faster.
quote_literal
escape_newlines
max_exec_len
256 characters.
init_linker
eliminate_macros
Expands MM[KS]/Make macros in a text string, using the
contents of identically named elements of %$self, and
returns the result as a file specification in Unix syn-
tax.
NOTE: This is the canonical version of the method. The
version in File::Spec::VMS is deprecated.
fixpath
my $path = $mm->fixpath($path);
my $path = $mm->fixpath($path, $is_dir);
Catchall routine to clean up problem MM[SK]/Make macros.
Expands macros in any directory specification, in order
to avoid juxtaposing two VMS-syntax directories when
MM[SK] is run. Also expands expressions which are all
macro, so that we can tell how long the expansion is,
and avoid overrunning DCL's command buffer when MM[KS]
is running.
fixpath() checks to see whether the result matches the
name of a directory in the current default directory and
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returns a directory or file specification accordingly.
$is_dir can be set to true to force fixpath() to con-
sider the path to be a directory or false to force it to
be a file.
NOTE: This is the canonical version of the method. The
version in File::Spec::VMS is deprecated.
os_flavor
VMS is VMS.
AUTHOR
Original author Charles Bailey bailey@newman.upenn.edu
Maintained by Michael G Schwern schwern@pobox.com
See ExtUtils::MakeMaker for patching and contact informa-
tion.
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