Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

[pandora-kernel.git] / scripts / headers_install.pl

diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
index 4ca3be3..efb3be1 100644 (file)
--- a/scripts/headers_install.pl
+++ b/scripts/headers_install.pl
@@ -45,6 +45,13 @@ foreach my $file (@files) {
        close $in;
 
        system $unifdef . " $tmpfile > $installdir/$file";
+       # unifdef will exit 0 on success, and will exit 1 when the
+       # file was processed successfully but no changes were made,
+       # so abort only when it's higher than that.
+       my $e = $? >> 8;
+       if ($e > 1) {
+               die "$tmpfile: $!\n";
+       }
        unlink $tmpfile;
 }
 exit 0;