Created attachment 700269 [details] build.log When emerged with +dssi, I think the ebuild should set +ladspa (or alternatively just yell really loud) as well. Manually adding +ladspa to package.use resolves this issue. The dssi object files start causing missing reference errors to qtractor's own ladspa support at the link stage otherwise.
Created attachment 700272 [details] emerge --info
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2efa26e91ba7e5aa1a483c80c83fd59661e2103f commit 2efa26e91ba7e5aa1a483c80c83fd59661e2103f Author: Miroslav Šulc <fordfrog@gentoo.org> AuthorDate: 2021-04-18 09:19:31 +0000 Commit: Miroslav Šulc <fordfrog@gentoo.org> CommitDate: 2021-04-18 09:19:31 +0000 media-sound/qtractor: fixed required use flag Closes: https://bugs.gentoo.org/783222 Package-Manager: Portage-3.0.18, Repoman-3.0.3 Signed-off-by: Miroslav Šulc <fordfrog@gentoo.org> media-sound/qtractor/qtractor-0.9.20.ebuild | 1 + media-sound/qtractor/qtractor-0.9.21.ebuild | 1 + 2 files changed, 2 insertions(+)