fluidsynth had a major version bump roughly two weeks ago: https://github.com/FluidSynth/fluidsynth/releases/tag/v2.0.0 Among the changes, it doesn't strictly require pkg-config anymore (resulting in a very minimal build).
http://www.fluidsynth.org/api/index.html#NewIn2_0_0
By now, fluidsynth is already at version 2.0.3: https://github.com/FluidSynth/fluidsynth/releases/tag/v2.0.3
2.0.4 is out. I opened a PR on github. The update does not seem to break anything. I tested all packages that depend on fluidsynth (equery d media-sound/fluidsynth) and they seem fine.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=580fc2f06f2dd4c494c370fd92a14eccc8b9c86d commit 580fc2f06f2dd4c494c370fd92a14eccc8b9c86d Author: Nikos Chantziaras <realnc@gmail.com> AuthorDate: 2019-03-04 17:50:22 +0000 Commit: Andreas Sturmlechner <asturm@gentoo.org> CommitDate: 2019-03-10 22:45:54 +0000 media-sound/fluidsynth: bump to 2.0.4 with subslot, update ebuild Use subslot due to soversion change. Bump EAPI to 7. License is now LGPL-2.1+. Add "oss" USE flag. Enable upstream-recommended USE flags by default (+readline +sndfile). Drop versioned deps (no longer in portage.) Remove unused "ladcca" cmake option. Put pkgconfig in BDEPEND. Remove forced "-pthread" flag. Closes: https://bugs.gentoo.org/667254 Package-Manager: Portage-2.3.62, Repoman-2.3.12 Signed-off-by: Nikos Chantziaras <realnc@gmail.com> Closes: https://github.com/gentoo/gentoo/pull/11257 Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org> media-sound/fluidsynth/Manifest | 1 + media-sound/fluidsynth/fluidsynth-2.0.4.ebuild | 75 ++++++++++++++++++++++++++ 2 files changed, 76 insertions(+)