This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
added information how to build on Leopard
[perl5.git] / install_lib.pl
CommitLineData
9e6fc21f
NC
1#!perl
2
3# Initialisation code and subroutines shared between installperl and installman
4# Probably installhtml needs to join the club.
5
6use strict;
7use vars qw($Is_VMS $Is_W32 $Is_OS2 $Is_Cygwin $Is_Darwin $Is_NetWare
8 %opts $packlist);
9use subs qw(unlink link chmod);
10
11use Config;
12BEGIN {
13 if ($Config{userelocatableinc}) {
14 # This might be a considered a hack. Need to get information about the
15 # configuration from Config.pm *before* Config.pm expands any .../
16 # prefixes.
17 #
18 # So we set $^X to pretend that we're the already installed perl, so
19 # Config.pm doesits ... expansion off that location.
20
21 my $location = $Config{initialinstalllocation};
22 die <<'OS' unless defined $location;
23$Config{initialinstalllocation} is not defined - can't install a relocatable
24perl without this.
25OS
26 $^X = "$location/perl";
27 # And then remove all trace of ever having loaded Config.pm, so that
28 # it will reload with the revised $^X
29 undef %Config::;
30 delete $INC{"Config.pm"};
31 delete $INC{"Config_heavy.pl"};
32 # You never saw us. We weren't here.
33
34 require Config;
35 Config->import;
36 }
37}
38
39if ($Config{d_umask}) {
40 umask(022); # umasks like 077 aren't that useful for installations
41}
42
43$Is_VMS = $^O eq 'VMS';
44$Is_W32 = $^O eq 'MSWin32';
45$Is_OS2 = $^O eq 'os2';
46$Is_Cygwin = $^O eq 'cygwin';
47$Is_Darwin = $^O eq 'darwin';
48$Is_NetWare = $Config{osname} eq 'NetWare';
49
50sub unlink {
51 my(@names) = @_;
52 my($cnt) = 0;
53
54 return scalar(@names) if $Is_VMS;
55
56 foreach my $name (@names) {
57 next unless -e $name;
58 chmod 0777, $name if ($Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare);
59 print " unlink $name\n" if $opts{verbose};
60 ( CORE::unlink($name) and ++$cnt
61 or warn "Couldn't unlink $name: $!\n" ) unless $opts{notify};
62 }
63 return $cnt;
64}
65
66sub link {
67 my($from,$to) = @_;
68 my($success) = 0;
69
70 my $xfrom = $from;
71 $xfrom =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
72 my $xto = $to;
73 $xto =~ s/^\Q$opts{destdir}\E// if $opts{destdir};
74 print $opts{verbose} ? " ln $xfrom $xto\n" : " $xto\n"
75 unless $opts{silent};
76 eval {
77 CORE::link($from, $to)
78 ? $success++
79 : ($from =~ m#^/afs/# || $to =~ m#^/afs/#)
80 ? die "AFS" # okay inside eval {}
81 : die "Couldn't link $from to $to: $!\n"
82 unless $opts{notify};
83 $packlist->{$xto} = { from => $xfrom, type => 'link' };
84 };
85 if ($@) {
86 warn "Replacing link() with File::Copy::copy(): $@";
87 print $opts{verbose} ? " cp $from $xto\n" : " $xto\n"
88 unless $opts{silent};
89 print " creating new version of $xto\n"
90 if $Is_VMS and -e $to and !$opts{silent};
91 unless ($opts{notify} or File::Copy::copy($from, $to) and ++$success) {
92 # Might have been that F::C::c can't overwrite the target
93 warn "Couldn't copy $from to $to: $!\n"
94 unless -f $to and (chmod(0666, $to), unlink $to)
95 and File::Copy::copy($from, $to) and ++$success;
96 }
97 $packlist->{$xto} = { type => 'file' };
98 }
99 $success;
100}
101
102sub chmod {
103 my($mode,$name) = @_;
104
105 return if ($^O eq 'dos');
106 printf " chmod %o %s\n", $mode, $name if $opts{verbose};
107 CORE::chmod($mode,$name)
108 || warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name)
109 unless $opts{notify};
110}
111
112
113sub samepath {
114 my($p1, $p2) = @_;
115
116 return (lc($p1) eq lc($p2)) if ($Is_W32 || $Is_NetWare);
117
118 if ($p1 ne $p2) {
119 my($dev1, $ino1, $dev2, $ino2);
120 ($dev1, $ino1) = stat($p1);
121 ($dev2, $ino2) = stat($p2);
122 ($dev1 == $dev2 && $ino1 == $ino2);
123 }
124 else {
125 1;
126 }
127}
128
1291;