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lib/ExtUtils/MM_VMS.pm  view on Meta::CPAN

        my(@defs,@udefs);
        foreach my $def (@terms) {
            next unless $def;
            my $targ = \@defs;
            if ($def =~ s/^-([DU])//) {    # If it was a Unix-style definition
                $targ = \@udefs if $1 eq 'U';
                $def =~ s/='(.*)'$/=$1/;  # then remove shell-protection ''
                $def =~ s/^'(.*)'$/$1/;   # from entire term or argument
            }
            if ($def =~ /=/) {
                $def =~ s/"/""/g;  # Protect existing " from DCL
                $def = qq["$def"]; # and quote to prevent parsing of =
            }
            push @$targ, $def;
        }

        $self->{DEFINE} = '';
        if (@defs)  {
            $self->{DEFINE}  = '/Define=(' . join(',',@defs)  . ')';
        }
        if (@udefs) {
            $self->{DEFINE} .= '/Undef=('  . join(',',@udefs) . ')';
        }
    }
}

=item 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.

=cut

sub init_tools {
    my($self) = @_;

    $self->{NOOP}               = 'Continue';
    $self->{NOECHO}             ||= '@ ';

    $self->{MAKEFILE}           ||= $self->{FIRST_MAKEFILE} || 'Descrip.MMS';
    $self->{FIRST_MAKEFILE}     ||= $self->{MAKEFILE};
    $self->{MAKE_APERL_FILE}    ||= 'Makeaperl.MMS';
    $self->{MAKEFILE_OLD}       ||= $self->eliminate_macros('$(FIRST_MAKEFILE)_old');
#
#   If an extension is not specified, then MMS/MMK assumes an
#   an extension of .MMS.  If there really is no extension,
#   then a trailing "." needs to be appended to specify a
#   a null extension.
#
    $self->{MAKEFILE} .= '.' unless $self->{MAKEFILE} =~ m/\./;
    $self->{FIRST_MAKEFILE} .= '.' unless $self->{FIRST_MAKEFILE} =~ m/\./;
    $self->{MAKE_APERL_FILE} .= '.' unless $self->{MAKE_APERL_FILE} =~ m/\./;
    $self->{MAKEFILE_OLD} .= '.' unless $self->{MAKEFILE_OLD} =~ m/\./;

    $self->{MACROSTART}         ||= '/Macro=(';
    $self->{MACROEND}           ||= ')';
    $self->{USEMAKEFILE}        ||= '/Descrip=';

    $self->{EQUALIZE_TIMESTAMP} ||= '$(ABSPERLRUN) -we "open F,qq{>>$ARGV[1]};close F;utime(0,(stat($ARGV[0]))[9]+1,$ARGV[1])"';

    $self->{MOD_INSTALL} ||=
      $self->oneliner(<<'CODE', ['-MExtUtils::Install']);
install([ from_to => {split('\|', <STDIN>)}, verbose => '$(VERBINST)', uninstall_shadows => '$(UNINST)', dir_mode => '$(PERM_DIR)' ]);
CODE

    $self->{UMASK_NULL} = '! ';

    $self->SUPER::init_tools;

    # Use the default shell
    $self->{SHELL}    ||= 'Posix';

    # Redirection on VMS goes before the command, not after as on Unix.
    # $(DEV_NULL) is used once and its not worth going nuts over making
    # it work.  However, Unix's DEV_NULL is quite wrong for VMS.
    $self->{DEV_NULL}   = '';

    return;
}

=item 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.

=cut

sub init_platform {
    my($self) = shift;

    $self->{MM_VMS_REVISION} = $Revision;
    $self->{MM_VMS_VERSION}  = $VERSION;
    $self->{PERL_VMS} = $self->catdir($self->{PERL_SRC}, 'VMS')
      if $self->{PERL_SRC};
}


=item platform_constants

=cut

sub platform_constants {
    my($self) = shift;
    my $make_frag = '';

    foreach my $macro (qw(PERL_VMS MM_VMS_REVISION MM_VMS_VERSION))
    {
        next unless defined $self->{$macro};
        $make_frag .= "$macro = $self->{$macro}\n";
    }

    return $make_frag;
}