4
use warnings FATAL => "all";
6
my $ccache_dir = "/usr/lib/ccache";
7
my $gcc_dir = "/usr/lib/gcc";
8
my %old_symlinks; # Current compiler names in /usr/lib/ccache
9
my %new_symlinks; # Compiler names that should be in /usr/lib/ccache
10
my @standard_names = qw(cc c++);
14
if (-x "/usr/bin/$name") {
15
$new_symlinks{$name} = 1;
20
my ($prefix, $suffix) = @_;
21
consider "${prefix}gcc${suffix}";
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consider "${prefix}g++${suffix}";
25
# Find existing standard compiler names.
26
foreach (@standard_names) {
30
# Find existing GCC variants.
32
consider_gcc "c89-", "";
33
consider_gcc "c99-", "";
34
foreach my $dir (<$gcc_dir/*>) {
35
(my $kind = $dir) =~ s|.*/||;
36
consider_gcc "$kind-", "";
38
if (! -l $_ and -d $_) {
40
consider_gcc "$kind-", "-$_";
45
# Find existing symlinks.
46
foreach (<$ccache_dir/*>) {
49
$old_symlinks{$_} = 1;
53
# Remove obsolete symlinks.
54
foreach (keys %old_symlinks) {
55
if (! exists $new_symlinks{$_}) {
56
unlink "$ccache_dir/$_";
60
# Add missing symlinks.
61
foreach (keys %new_symlinks) {
62
if (! exists $old_symlinks{$_}) {
63
symlink "../../bin/ccache", "$ccache_dir/$_";