Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / amd64 / lib / perl5 / 5.8.8 / B / makeliblinks

use File::Find;
use Config;

if (@ARGV != 2) {
   warn <<"EOT";
Usage: makeliblinks libautodir targetdir
where libautodir is the architecture-dependent auto directory
(e.g. $Config::Config{archlib}/auto).
EOT
   exit 2;
}

my ($libautodir, $targetdir) = @ARGV;

# Calculate relative path prefix from $targetdir to $libautodir
sub relprefix {
   my ($to, $from) = @_;
   my $up;
   for ($up = 0; substr($to, 0, length($from)) ne $from; $up++) {
       $from =~ s(
                  [^/]+        (?# a group of non-slashes) 
                  /*           (?# maybe with some trailing slashes)
                  $            (?# at the end of the path)
                 )()x;
   }
   return (("../" x $up) . substr($to, length($from)));
}

my $relprefix = relprefix($libautodir, $targetdir);

my ($dlext, $lib_ext) = @Config::Config{qw(dlext lib_ext)};

sub link_if_library {
   if (/\.($dlext|$lib_ext)$/o) {
       my $ext = $1;
       my $name = $File::Find::name;
       if (substr($name, 0, length($libautodir) + 1) ne "$libautodir/") {
           die "directory of $name doesn't match $libautodir\n";
       }
       substr($name, 0, length($libautodir) + 1) = '';
       my @parts = split(m(/), $name);
       if ($parts[-1] ne "$parts[-2].$ext") {
           die "module name $_ doesn't match its directory $libautodir\n";
       }
       pop @parts;
       my $libpath = "$targetdir/lib" . join("__", @parts) . ".$ext";
       print "$libpath -> $relprefix/$name\n";
       symlink("$relprefix/$name", $libpath)
           or warn "above link failed with error: $!\n";
   }
}

find(\&link_if_library, $libautodir);
exit 0;