Hi, Enabling the option provided by this patch when building official packages would make it possible to get useful backtraces without the hassle of rebuilding the affected package with debug symbols enabled. I'm sure this would make some upstreams quite happy. Fedora has had this since Fedora 18 (January 2013). Going by [1], the increase in binary size should vary between 1-2% for normal packages and up to 7% for complex packages like firefox. Because of compression, the relative increase in package size would be larger than that. I don't have numbers for this right now. Using LC_ALL=C for the sort, awk and comm operations seemed like a good idea, but I don't really know. I wanted to make sure this feature works even when not generating separate -debug packages (which probably won't get mirrored any time soon), hence the code surrounded by 'if ! check_option "debug"'. Cheers, Leo