Please bump to =media-libs/oidn-1.4.2, and add python3_10 while at it. It works here after simply renaming the ebuild for 1.4.1-r1 (but I haven't tried with python3_10).
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2fcac46033a4bef98277bc88be618c83d08c8e23 commit 2fcac46033a4bef98277bc88be618c83d08c8e23 Author: Sam James <sam@gentoo.org> AuthorDate: 2022-01-02 03:28:22 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2022-01-02 03:28:22 +0000 media-libs/oidn: add 1.4.2 Closes: https://bugs.gentoo.org/830421 Signed-off-by: Sam James <sam@gentoo.org> media-libs/oidn/Manifest | 1 + media-libs/oidn/oidn-1.4.2.ebuild | 29 +++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+)