Karel Zak wrote on Wed, Aug 01, 2018 at 01:17:29PM +0200: > Well, --as-needed is workaround and nothing else. The real problem is > mess in makefiles and .pc (pkg-config) files. > > It would be better to use --as-needed for testing purpose only, and > ask maintainers why the result with --as-needed is different. Wearing a lib developer hat, I don't see how you can make a .pc that doesn't overlink if you provide something a bit entangled with other libs. The problem is that if your headers use any sub-lib type you need to add that lib in Requires: so that --cflags will pull that lib's include path; and that will in turn add that sub-lib to the linked libs even if the program likely doesn't care about it (either because they didn't even use that part of your lib, or because all uses of that lib will be done through your own anyway so it wasn't required in the first place) This isn't obvious if you only support systems like fedora where most packages include dirs are standard to /usr/include but if you want to start supporting people working with dependencies in subdirs or distros like nixos that will have one include directory per dependency, you really need to put every external headers your depend on as 'Requires'. Unless you can tell pkgconfig "take all of these dependencies for --cflags but not for --libs" I do not see how this can be improved, and that's where --as-needed is helpful. It's not the ideal solution, but I don't have anything better right now, and pkg-config is by far not the worst solution to handling dependencies... -- Dominique Martinet _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/message/WD7WBZSVKQVF2KWABZGBYQFFW6EIOMGR/
