ABI tools: Better reporting of missing files

diff --git a/maint/abi-rename-symbols b/maint/abi-rename-symbols
index a222f93a9ec07ce66ceed81ae65e4ab4804451e0..acf0534ff991df9a13fa427eb262bcab180952d0 100755 (executable)
--- a/maint/abi-rename-symbols
+++ b/maint/abi-rename-symbols
@@ -21,7 +21,7 @@ for my $g (sort keys %renames) {
        my @symbols = sort @{$renames{$g}};
        @symbols or next;
 
-       open my $in, '<', $g or die;
+       open my $in, '<', $g or die "Cannot open $g: $!\n";
        open my $out, '>', "$g.new" or die;
        my $mode = 0;
        my $cmt = 0;