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ExtUtils::MM_VMS(3pm)  Perl Programmers Reference Guide  ExtUtils::MM_VMS(3pm)




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.

       _fixin_replace_shebang (override)
           Helper routine for MM->fixin(), overridden because there's no such
           thing as an actual shebang line that will be interpreted by the
           shell, so we just prepend $Config{startperl} and preserve the
           shebang line argument for any switches it may contain.

       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)
           The list of macro definitions to be passed through must be
           specified using the /MACRO qualifier and must not add another
           /DEFINE qualifier.  We prepend our own comma here to the contents
           of $(PASTHRU_DEFINE) because it is often empty and a comma always
           present in CCFLAGS would generate a missing qualifier value error.

       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 separator between a directory path and a filename on VMS.

       init_main (override)
       init_tools (override)
           Provide VMS-specific forms of various utility commands.

           Sets DEV_NULL to nothing because I don't know how to do it on VMS.

           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.

       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.

       xs_o (override)
           Use MM[SK] macros, and VMS command line for C compiler.

       _xsbuild_replace_macro (override)
           There is no simple replacement possible since a qualifier and all
           its subqualifiers must be considered together, so we use our own
           utility routine for the replacement.

       _xsbuild_value (override)
           Convert the extension spec to Unix format, as that's what will
           match what's in the XSBUILD data structure.

       dlsyms (override)
           Create VMS linker options files specifying universal symbols for
           this extension's shareable image(s), and listing other shareable
           images or libraries to which it should be linked.

       xs_obj_opt
           Override to fixup -o flags.

       dynamic_lib (override)
           Use VMS Link command.

       xs_make_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.  And the name mangler database.

       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)
           Ensure 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]

           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, it's faster.

       quote_literal
       escape_dollarsigns
           Quote, don't escape.

       escape_all_dollarsigns
           Quote, don't escape.

       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 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.

       is_make_type (override)
           None of the make types being checked for is viable on VMS, plus our
           $self->{MAKE} is an unexpanded (and unexpandable) macro whose value
           is known only to the make utility itself.

       make_type (override)
           Returns a suitable string describing the type of makefile being
           written.


AUTHOR

       Original author Charles Bailey bailey@newman.upenn.edu

       Maintained by Michael G Schwern schwern@pobox.com

       See ExtUtils::MakeMaker(3) for patching and contact information.



perl v5.26.1                      2017-07-18             ExtUtils::MM_VMS(3pm)

perl 5.26.1 - Generated Sun Nov 5 06:21:15 CST 2017
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