


ExtUtils::MM_VMS(Perl Programmers Reference GExtUtils::MM_VMS(3p)


NAME
       ExtUtils::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
           directory (presumably the 'main' .pm file for this
           extension), 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 executable 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)
           VMS has $(MMSQUALIFIERS) which is a listing of all the
           original command line options.  This is used in every
           invocation of make in the VMS Makefile so PASTHRU



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ExtUtils::MM_VMS(Perl Programmers Reference GExtUtils::MM_VMS(3p)


           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
           customary 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)
           Override the *DEFINE_VERSION macros with VMS
           semantics.  Translate the MAKEMAKER filepath to VMS
           style.




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ExtUtils::MM_VMS(Perl Programmers Reference GExtUtils::MM_VMS(3p)


       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,
           $(DEFINE) and $(PERL_INC) have been pulled into
           $(CCCMD).  Also use MM[SK] macros.

       xs_c (override)
           Use MM[SK] macros.



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ExtUtils::MM_VMS(Perl Programmers Reference GExtUtils::MM_VMS(3p)


       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
           listing 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.
           Consequently, it hasn't really been tested, and may
           well be incomplete.

       maketext_filter (override)
           Insure that colons marking targets are preceded by
           space, in order to distinguish the target delimiter
           from a colon appearing as part of a filespec.

       prefixify (override)
           prefixifying on VMS is simple.  Each should simply be:

               perl_root:[some.dir]



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           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
       catdir (override)
       catfile (override)
           Eliminate the macros in the output to the MMS/MMK
           file.

           (File::Spec::VMS used to do this for us, but it's
           being removed)

       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
           syntax.

           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 returns a directory or file specification



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ExtUtils::MM_VMS(Perl Programmers Reference GExtUtils::MM_VMS(3p)


           accordingly.  $is_dir can be set to true to force
           fixpath() to consider 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
       information.








































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