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dpavlin |
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package Module::Install::Can; |
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use strict; |
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use Module::Install::Base; |
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use Config (); |
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### This adds a 5.005 Perl version dependency. |
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### This is a bug and will be fixed. |
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use File::Spec (); |
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use ExtUtils::MakeMaker (); |
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use vars qw{$VERSION $ISCORE @ISA}; |
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BEGIN { |
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$VERSION = '0.67'; |
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$ISCORE = 1; |
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@ISA = qw{Module::Install::Base}; |
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} |
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# check if we can load some module |
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### Upgrade this to not have to load the module if possible |
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sub can_use { |
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my ($self, $mod, $ver) = @_; |
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$mod =~ s{::|\\}{/}g; |
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$mod .= '.pm' unless $mod =~ /\.pm$/i; |
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my $pkg = $mod; |
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$pkg =~ s{/}{::}g; |
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$pkg =~ s{\.pm$}{}i; |
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local $@; |
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eval { require $mod; $pkg->VERSION($ver || 0); 1 }; |
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} |
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# check if we can run some command |
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sub can_run { |
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my ($self, $cmd) = @_; |
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my $_cmd = $cmd; |
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return $_cmd if (-x $_cmd or $_cmd = MM->maybe_command($_cmd)); |
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for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') { |
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my $abs = File::Spec->catfile($dir, $_[1]); |
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return $abs if (-x $abs or $abs = MM->maybe_command($abs)); |
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} |
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return; |
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} |
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# can we locate a (the) C compiler |
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sub can_cc { |
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my $self = shift; |
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my @chunks = split(/ /, $Config::Config{cc}) or return; |
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# $Config{cc} may contain args; try to find out the program part |
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while (@chunks) { |
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return $self->can_run("@chunks") || (pop(@chunks), next); |
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} |
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return; |
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} |
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# Fix Cygwin bug on maybe_command(); |
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if ( $^O eq 'cygwin' ) { |
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require ExtUtils::MM_Cygwin; |
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require ExtUtils::MM_Win32; |
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if ( ! defined(&ExtUtils::MM_Cygwin::maybe_command) ) { |
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*ExtUtils::MM_Cygwin::maybe_command = sub { |
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my ($self, $file) = @_; |
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if ($file =~ m{^/cygdrive/}i and ExtUtils::MM_Win32->can('maybe_command')) { |
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ExtUtils::MM_Win32->maybe_command($file); |
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} else { |
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ExtUtils::MM_Unix->maybe_command($file); |
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} |
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} |
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} |
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} |
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1; |
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__END__ |
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#line 157 |
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