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

       ExtUtils::MM_VMS	- methods to override UN*X behaviour in

	 Do not	use this directly.
	 Instead, use ExtUtils::MM and it will figure out which	MM_*
	 class to use for you.

       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
	   Converts a list into	a string wrapped at approximately 80 columns.

       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.

	   Use as separator a character	which is legal in a VMS-syntax file

	   (override) Because of the difficulty	concatenating VMS filepaths we
	   must	pre-expand the DEST* variables.

	   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)

	   MM_VMS_REVISION is for backwards compatibility before MM_VMS	had a

       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-

	   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

			   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]

       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.

	   Override to fixup -o	flags.

       dynamic_lib (override)
	   Use VMS Link	command.

       xs_make_static_lib (override)
	   Use VMS commands to manipulate object library.

       static_lib_pure_cmd (override)
	   Use VMS commands to manipulate object library.

	   Clean up some OS specific files.  Plus the temp file	used to
	   shorten a lot of commands.  And the name mangler database.

	   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, 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:


	   which can just be converted to:


	   otherwise you get the default layout.

	   In effect, your search prefix is ignored and	$Config{vms_prefix} is
	   used	instead.

	   perl	trips up on "<foo>" thinking it's an input redirect.  So we
	   use the native Write	command	instead.  Besides, it's	faster.

	   Quote, don't	escape.

	   Quote, don't	escape.

	   256 characters.

       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)

	   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.

	      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.

	   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

       Original	author Charles Bailey

       Maintained by Michael G Schwern

       See ExtUtils::MakeMaker for patching and	contact	information.

perl v5.28.3			  2020-05-14		   ExtUtils::MM_VMS(3)


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