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PERLBUG(1)	       Perl Programmers Reference Guide		    PERLBUG(1)

NAME
       perlbug - how to submit bug reports on Perl

SYNOPSIS
       perlbug [ -v ] [ -a address ] [ -s subject ] [ -b body | -f inputfile ]
       [ -F outputfile ] [ -r returnaddress ] [ -e editor ]
       [ -c adminaddress | -C ] [ -S ] [ -t ]  [ -d ]  [ -A ]  [ -h ]

       perlbug [ -v ] [ -r returnaddress ]
	[ -A ] [ -ok | -okay | -nok | -nokay ]

DESCRIPTION
       A program to help generate bug reports about perl or the modules that
       come with it, and mail them.

       If you have found a bug with a non-standard port (one that was not part
       of the standard distribution), a binary distribution, or a non-standard
       module (such as Tk, CGI, etc), then please see the documentation that
       came with that distribution to determine the correct place to report
       bugs.

       "perlbug" is designed to be used interactively. Normally no arguments
       will be needed.	Simply run it, and follow the prompts.

       If you are unable to run perlbug (most likely because you don't have a
       working setup to send mail that perlbug recognizes), you may have to
       compose your own report, and email it to perlbug@perl.org.  You might
       find the -d option useful to get summary information in that case.

       In any case, when reporting a bug, please make sure you have run
       through this checklist:

       What version of Perl you are running?
	   Type "perl -v" at the command line to find out.

       Are you running the latest released version of perl?
	   Look at http://www.perl.com/ to find out.  If it is not the latest
	   released version, get that one and see whether your bug has been
	   fixed.  Note that bug reports about old versions of Perl,
	   especially those prior to the 5.0 release, are likely to fall upon
	   deaf ears.  You are on your own if you continue to use perl1 ..
	   perl4.

       Are you sure what you have is a bug?
	   A significant number of the bug reports we get turn out to be
	   documented features in Perl.	 Make sure the behavior you are
	   witnessing doesn't fall under that category, by glancing through
	   the documentation that comes with Perl (we'll admit this is no mean
	   task, given the sheer volume of it all, but at least have a look at
	   the sections that seem relevant).

	   Be aware of the familiar traps that perl programmers of various
	   hues fall into.  See perltrap.

	   Check in perldiag to see what any Perl error message(s) mean.  If
	   message isn't in perldiag, it probably isn't generated by Perl.
	   Consult your operating system documentation instead.

	   If you are on a non-UNIX platform check also perlport, as some
	   features may be unimplemented or work differently.

	   Try to study the problem under the Perl debugger, if necessary.
	   See perldebug.

       Do you have a proper test case?
	   The easier it is to reproduce your bug, the more likely it will be
	   fixed, because if no one can duplicate the problem, no one can fix
	   it.	A good test case has most of these attributes: fewest possible
	   number of lines; few dependencies on external commands, modules, or
	   libraries; runs on most platforms unimpeded; and is self-
	   documenting.

	   A good test case is almost always a good candidate to be on the
	   perl test suite.  If you have the time, consider making your test
	   case so that it will readily fit into the standard test suite.

	   Remember also to include the exact error messages, if any.  "Perl
	   complained something" is not an exact error message.

	   If you get a core dump (or equivalent), you may use a debugger
	   (dbx, gdb, etc) to produce a stack trace to include in the bug
	   report.  NOTE: unless your Perl has been compiled with debug info
	   (often -g), the stack trace is likely to be somewhat hard to use
	   because it will most probably contain only the function names and
	   not their arguments.	 If possible, recompile your Perl with debug
	   info and reproduce the dump and the stack trace.

       Can you describe the bug in plain English?
	   The easier it is to understand a reproducible bug, the more likely
	   it will be fixed.  Anything you can provide by way of insight into
	   the problem helps a great deal.  In other words, try to analyze the
	   problem (to the extent you can) and report your discoveries.

       Can you fix the bug yourself?
	   A bug report which includes a patch to fix it will almost
	   definitely be fixed.	 Use the "diff" program to generate your
	   patches ("diff" is being maintained by the GNU folks as part of the
	   diffutils package, so you should be able to get it from any of the
	   GNU software repositories).	If you do submit a patch, the cool-
	   dude counter at perlbug@perl.org will register you as a savior of
	   the world.  Your patch may be returned with requests for changes,
	   or requests for more detailed explanations about your fix.

	   Here are some clues for creating quality patches: Use the -c or -u
	   switches to the diff program (to create a so-called context or
	   unified diff).  Make sure the patch is not reversed (the first
	   argument to diff is typically the original file, the second
	   argument your changed file).	 Make sure you test your patch by
	   applying it with the "patch" program before you send it on its way.
	   Try to follow the same style as the code you are trying to patch.
	   Make sure your patch really does work ("make test", if the thing
	   you're patching supports it).

       Can you use "perlbug" to submit the report?
	   perlbug will, amongst other things, ensure your report includes
	   crucial information about your version of perl.  If "perlbug" is
	   unable to mail your report after you have typed it in, you may have
	   to compose the message yourself, add the output produced by
	   "perlbug -d" and email it to perlbug@perl.org.  If, for some
	   reason, you cannot run "perlbug" at all on your system, be sure to
	   include the entire output produced by running "perl -V" (note the
	   uppercase V).

	   Whether you use "perlbug" or send the email manually, please make
	   your Subject line informative.  "a bug" not informative.  Neither
	   is "perl crashes" nor "HELP!!!".  These don't help.	A compact
	   description of what's wrong is fine.

       Having done your bit, please be prepared to wait, to be told the bug is
       in your code, or even to get no reply at all.  The Perl maintainers are
       busy folks, so if your problem is a small one or if it is difficult to
       understand or already known, they may not respond with a personal
       reply.  If it is important to you that your bug be fixed, do monitor
       the "Changes" file in any development releases since the time you
       submitted the bug, and encourage the maintainers with kind words (but
       never any flames!).  Feel free to resend your bug report if the next
       released version of perl comes out and your bug is still present.

OPTIONS
       -a      Address to send the report to.  Defaults to perlbug@perl.org.

       -A      Don't send a bug received acknowledgement to the reply address.
	       Generally it is only a sensible to use this option if you are a
	       perl maintainer actively watching perl porters for your message
	       to arrive.

       -b      Body of the report.  If not included on the command line, or in
	       a file with -f, you will get a chance to edit the message.

       -C      Don't send copy to administrator.

       -c      Address to send copy of report to.  Defaults to the address of
	       the local perl administrator (recorded when perl was built).

       -d      Data mode (the default if you redirect or pipe output).	This
	       prints out your configuration data, without mailing anything.
	       You can use this with -v to get more complete data.

       -e      Editor to use.

       -f      File containing the body of the report.	Use this to quickly
	       send a prepared message.

       -F      File to output the results to instead of sending as an email.
	       Useful particularly when running perlbug on a machine with no
	       direct internet connection.

       -h      Prints a brief summary of the options.

       -ok     Report successful build on this system to perl porters. Forces
	       -S and -C. Forces and supplies values for -s and -b. Only
	       prompts for a return address if it cannot guess it (for use
	       with make). Honors return address specified with -r.  You can
	       use this with -v to get more complete data.   Only makes a
	       report if this system is less than 60 days old.

       -okay   As -ok except it will report on older systems.

       -nok    Report unsuccessful build on this system.  Forces -C.  Forces
	       and supplies a value for -s, then requires you to edit the
	       report and say what went wrong.	Alternatively, a prepared
	       report may be supplied using -f.	 Only prompts for a return
	       address if it cannot guess it (for use with make). Honors
	       return address specified with -r.  You can use this with -v to
	       get more complete data.	Only makes a report if this system is
	       less than 60 days old.

       -nokay  As -nok except it will report on older systems.

       -r      Your return address.  The program will ask you to confirm its
	       default if you don't use this option.

       -S      Send without asking for confirmation.

       -s      Subject to include with the message.  You will be prompted if
	       you don't supply one on the command line.

       -t      Test mode.  The target address defaults to
	       perlbug-test@perl.org.

       -v      Include verbose configuration data in the report.

AUTHORS
       Kenneth Albanowski (<kjahds@kjahds.com>), subsequently doctored by
       Gurusamy Sarathy (<gsar@activestate.com>), Tom Christiansen
       (<tchrist@perl.com>), Nathan Torkington (<gnat@frii.com>), Charles F.
       Randall (<cfr@pobox.com>), Mike Guy (<mjtg@cam.a.uk>), Dominic Dunlop
       (<domo@computer.org>), Hugo van der Sanden (<hv@crypt.org<gt>), Jarkko
       Hietaniemi (<jhi@iki.fi>), Chris Nandor (<pudge@pobox.com>), Jon Orwant
       (<orwant@media.mit.edu>, and Richard Foley (<richard@rfi.net>).

SEE ALSO
       perl(1), perldebug(1), perldiag(1), perlport(1), perltrap(1), diff(1),
       patch(1), dbx(1), gdb(1)

BUGS
       None known (guess what must have been used to report them?)

perl v5.10.0			  2009-03-02			    PERLBUG(1)
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