| Commit | Line | Data |
|---|
| 3a889a03 |
1 | #line 1 |
| 2 | package Module::Install::Can; |
| 3 | |
| 4 | use strict; |
| 5 | use Module::Install::Base; |
| 6 | use Config (); |
| 7 | ### This adds a 5.005 Perl version dependency. |
| 8 | ### This is a bug and will be fixed. |
| 9 | use File::Spec (); |
| 10 | use ExtUtils::MakeMaker (); |
| 11 | |
| 12 | use vars qw{$VERSION $ISCORE @ISA}; |
| 13 | BEGIN { |
| 14 | $VERSION = '0.65'; |
| 15 | $ISCORE = 1; |
| 16 | @ISA = qw{Module::Install::Base}; |
| 17 | } |
| 18 | |
| 19 | # check if we can load some module |
| 20 | ### Upgrade this to not have to load the module if possible |
| 21 | sub can_use { |
| 22 | my ($self, $mod, $ver) = @_; |
| 23 | $mod =~ s{::|\\}{/}g; |
| 24 | $mod .= '.pm' unless $mod =~ /\.pm$/i; |
| 25 | |
| 26 | my $pkg = $mod; |
| 27 | $pkg =~ s{/}{::}g; |
| 28 | $pkg =~ s{\.pm$}{}i; |
| 29 | |
| 30 | local $@; |
| 31 | eval { require $mod; $pkg->VERSION($ver || 0); 1 }; |
| 32 | } |
| 33 | |
| 34 | # check if we can run some command |
| 35 | sub can_run { |
| 36 | my ($self, $cmd) = @_; |
| 37 | |
| 38 | my $_cmd = $cmd; |
| 39 | return $_cmd if (-x $_cmd or $_cmd = MM->maybe_command($_cmd)); |
| 40 | |
| 41 | for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') { |
| 42 | my $abs = File::Spec->catfile($dir, $_[1]); |
| 43 | return $abs if (-x $abs or $abs = MM->maybe_command($abs)); |
| 44 | } |
| 45 | |
| 46 | return; |
| 47 | } |
| 48 | |
| 49 | # can we locate a (the) C compiler |
| 50 | sub can_cc { |
| 51 | my $self = shift; |
| 52 | my @chunks = split(/ /, $Config::Config{cc}) or return; |
| 53 | |
| 54 | # $Config{cc} may contain args; try to find out the program part |
| 55 | while (@chunks) { |
| 56 | return $self->can_run("@chunks") || (pop(@chunks), next); |
| 57 | } |
| 58 | |
| 59 | return; |
| 60 | } |
| 61 | |
| 62 | # Fix Cygwin bug on maybe_command(); |
| 63 | if ( $^O eq 'cygwin' ) { |
| 64 | require ExtUtils::MM_Cygwin; |
| 65 | require ExtUtils::MM_Win32; |
| 66 | if ( ! defined(&ExtUtils::MM_Cygwin::maybe_command) ) { |
| 67 | *ExtUtils::MM_Cygwin::maybe_command = sub { |
| 68 | my ($self, $file) = @_; |
| 69 | if ($file =~ m{^/cygdrive/}i and ExtUtils::MM_Win32->can('maybe_command')) { |
| 70 | ExtUtils::MM_Win32->maybe_command($file); |
| 71 | } else { |
| 72 | ExtUtils::MM_Unix->maybe_command($file); |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | 1; |
| 79 | |
| 80 | __END__ |
| 81 | |
| 82 | #line 157 |
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