IRIX Base Documentation 2001 May/SGI IRIX Base Documentation 2001 May.iso/usr/share/catman/p_man/cat3/perl5/ExtUtils::MM_VMS.z/ExtUtils::MM_VMS

Text File | 1998-10-30 | 12.5 KB | 397 lines

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

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      use ExtUtils::MM_VMS; # Done internally by ExtUtils::MakeMaker if needed


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     See ExtUtils::MM_Unix for a documentation of the methods provided there.
     This package overrides the implementation of these methods, not the
     semantics.

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     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.

     fixpath
          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.

          If optional second argument has a TRUE value, then the return string
          is a VMS-syntax directory specification, otherwise it is a
          VMS-syntax file specification.

     catdir
          Concatenates a list of file specifications, and returns the result
          as a VMS-syntax directory specification.

     catfile
          Concatenates a list of file specifications, and returns the result
          as a VMS-syntax directory specification.

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

     curdir (override)
          Returns a string representing of the current directory.

     rootdir (override)
          Returns a string representing of the root directory.

     updir (override)
          Returns a string representing of the parent directory.




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     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 ._p_m file whose name matches that
          of the current directory (presumably the 'main' ._p_m 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.

     path (override)
          Translate logical name DCL$PATH as a searchlist, rather than trying
          to split string value of $ENV{'PATH'}.

     maybe_command (override)
          Follows VMS naming conventions for executable files.  If the name
          passed in doesn't exactly match an executable file, appends ._E_x_e (or
          equivalent) to check for executable image, and ._C_o_m to check for DCL
          procedure.  If this fails, checks directories in DCL$PATH and
          finally _S_y_s$_S_y_s_t_e_m: for an executable file having the name
          specified, with or without the ._E_x_e-equivalent suffix.

     maybe_command_in_dirs (override)
          Uses DCL argument quoting on test command line.

     perl_script (override)
          If name passed in doesn't specify a readable file, appends ._c_o_m or
          ._p_l and tries again, since it's customary to have file types on all
          files under VMS.

     file_name_is_absolute (override)
          Checks for VMS directory spec as well as Unix separators.

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

     init_others (override)
          Provide VMS-specific forms of various utility commands, then hand
          off to the default MM_Unix method.





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     constants (override)
          Fixes up numerous file and directory macros to insure VMS syntax
          regardless of input syntax.  Also adds a few VMS-specific macros and
          makes lists of files comma-separated.

     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.

     pm_to_blib (override)
          DCL _s_t_i_l_l accepts a maximum of 255 characters on a command line, so
          we write the (potentially) long list of file names to a temp file,
          then persuade Perl to read it instead of the command line to find
          args.

     tool_autosplit (override)
          Use VMS-style quoting on command line.

     tool_sxubpp (override)
          Use VMS-style quoting on xsubpp command line.

     xsubpp_version (override)
          Test xsubpp exit status according to VMS rules ($sts & 1 ==> good)
          rather than Unix rules ($sts == 0 ==> good).

     tools_other (override)
          Adds a few MM[SK] macros, and shortens some the installatin
          commands, in order to stay under DCL's 255-character limit.  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.

     dist (override)
          Provide VMSish defaults for some values, then hand off to default
          MM_Unix method.

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

     top_targets (override)
          Use VMS quoting on command line for Version_check.

     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.

     dynamic_bs (override)
          Use VMS-style quoting on Mkbootstrap command line.

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

     manifypods (override)
          Use VMS-style quoting on command line, and VMS logical name to
          specify fallback location at build time if we can't find pod2man.

     processPL (override)
          Use VMS-style quoting on command line.

     installbin (override)
          Stay under DCL's 255 character command line limit once again by
          splitting potentially long list of files across multiple lines in
          realclean target.

     subdir_x (override)
          Use VMS commands to change default directory.

     clean (override)
          Split potentially long list of files across multiple commands (in
          order to stay under the magic command line limit).  Also use MM[SK]
          commands for handling subdirectories.

     realclean (override)
          Guess what we're working around?  Also, use MM[SK] for
          subdirectories.

     dist_basics (override)
          Use VMS-style quoting on command line.

     dist_core (override)
          Syntax for invoking _V_M_S__S_h_a_r_e differs from that for Unix _s_h_a_r, so
          shdist target actions are VMS-specific.





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     dist_dir (override)
          Use VMS-style quoting on command line.

     dist_test (override)
          Use VMS commands to change default directory, and use VMS-style
          quoting on command line.

     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
          use config.vms as source of original config data if the Perl
          distribution is available; config.sh is an ancillary file under VMS.
          Finally, if we have to rebuild Config.pm, use MM[SK] to do it.

     makefile (override)
          Use VMS commands and quoting.

     test (override)
          Use VMS commands for handling subdirectories.

     test_via_harness (override)
          Use VMS-style quoting on command line.

     test_via_script (override)
          Use VMS-style quoting on command line.

     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.

     nicetext (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.














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