Commit | Line | Data |
dbcf12a6 |
1 | #line 1 |
2 | package Module::Install::Can; |
3 | |
4 | use strict; |
5 | use Config (); |
6 | use File::Spec (); |
7 | use ExtUtils::MakeMaker (); |
8 | use Module::Install::Base (); |
9 | |
10 | use vars qw{$VERSION @ISA $ISCORE}; |
11 | BEGIN { |
12 | $VERSION = '1.00'; |
13 | @ISA = 'Module::Install::Base'; |
14 | $ISCORE = 1; |
15 | } |
16 | |
17 | # check if we can load some module |
18 | ### Upgrade this to not have to load the module if possible |
19 | sub can_use { |
20 | my ($self, $mod, $ver) = @_; |
21 | $mod =~ s{::|\\}{/}g; |
22 | $mod .= '.pm' unless $mod =~ /\.pm$/i; |
23 | |
24 | my $pkg = $mod; |
25 | $pkg =~ s{/}{::}g; |
26 | $pkg =~ s{\.pm$}{}i; |
27 | |
28 | local $@; |
29 | eval { require $mod; $pkg->VERSION($ver || 0); 1 }; |
30 | } |
31 | |
32 | # check if we can run some command |
33 | sub can_run { |
34 | my ($self, $cmd) = @_; |
35 | |
36 | my $_cmd = $cmd; |
37 | return $_cmd if (-x $_cmd or $_cmd = MM->maybe_command($_cmd)); |
38 | |
39 | for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') { |
40 | next if $dir eq ''; |
41 | my $abs = File::Spec->catfile($dir, $_[1]); |
42 | return $abs if (-x $abs or $abs = MM->maybe_command($abs)); |
43 | } |
44 | |
45 | return; |
46 | } |
47 | |
48 | # can we locate a (the) C compiler |
49 | sub can_cc { |
50 | my $self = shift; |
51 | my @chunks = split(/ /, $Config::Config{cc}) or return; |
52 | |
53 | # $Config{cc} may contain args; try to find out the program part |
54 | while (@chunks) { |
55 | return $self->can_run("@chunks") || (pop(@chunks), next); |
56 | } |
57 | |
58 | return; |
59 | } |
60 | |
61 | # Fix Cygwin bug on maybe_command(); |
62 | if ( $^O eq 'cygwin' ) { |
63 | require ExtUtils::MM_Cygwin; |
64 | require ExtUtils::MM_Win32; |
65 | if ( ! defined(&ExtUtils::MM_Cygwin::maybe_command) ) { |
66 | *ExtUtils::MM_Cygwin::maybe_command = sub { |
67 | my ($self, $file) = @_; |
68 | if ($file =~ m{^/cygdrive/}i and ExtUtils::MM_Win32->can('maybe_command')) { |
69 | ExtUtils::MM_Win32->maybe_command($file); |
70 | } else { |
71 | ExtUtils::MM_Unix->maybe_command($file); |
72 | } |
73 | } |
74 | } |
75 | } |
76 | |
77 | 1; |
78 | |
79 | __END__ |
80 | |
81 | #line 156 |