Created attachment 701043 [details] build.log build.log attached. This was not reproducible on a system with glib-2.66.7, so it looks to be glib-2.68.0 related.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=aac513b177a376c8eb245e408a65d80919c554fa commit aac513b177a376c8eb245e408a65d80919c554fa Author: Matt Turner <mattst88@gentoo.org> AuthorDate: 2021-04-27 14:02:54 +0000 Commit: Matt Turner <mattst88@gentoo.org> CommitDate: 2021-04-27 14:03:56 +0000 media-sound/guitarix: Fix build with glib-2.68 Closes: https://bugs.gentoo.org/784395 Signed-off-by: Matt Turner <mattst88@gentoo.org> .../files/guitarix-0.42.1-fix-build-with-glib-2.68.patch | 13 +++++++++++++ media-sound/guitarix/guitarix-0.42.1.ebuild | 1 + 2 files changed, 14 insertions(+)