due to changes in ebuild in 3.3 and the way how asm is handled it's impossible to build on ppc64. there are some key points 1) altivec can't be enabled unless power8 is enabled. that's why ebuild used -DENABLE_ALTIVEC=$(usex power8 ON OFF), it was not a mistake. 2) asm=altivec on ppc64 for this package (#if defined(ENABLE_ASSEMBLY) || HAVE_ALTIVEC 3) I don't think you can build 10 and 12bit variants with altivec at all, but this needs checking. https://bugs.gentoo.org/607802#c5 but due to the way how changed ebuild adds cmake args it's impossible to override altivec for 10 and 12bit builds, as the main function will append use-controlled flags. working on a patch.
after some digging I figured it's actually possible to build altivec and power8 separately. comitting fix. moved some code around to apply ppc specifics for different variants. and disabled asm via useflag skipping.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=8e0a5fb99616c7abe00edac7e36d6c61e4af3318 commit 8e0a5fb99616c7abe00edac7e36d6c61e4af3318 Author: Georgy Yakovlev <gyakovlev@gentoo.org> AuthorDate: 2020-05-25 05:01:41 +0000 Commit: Georgy Yakovlev <gyakovlev@gentoo.org> CommitDate: 2020-05-25 05:09:15 +0000 media-libs/x265: fix 3.3 on ppc64 Closes: https://bugs.gentoo.org/725134 Package-Manager: Portage-2.3.100, Repoman-2.3.22 Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org> media-libs/x265/x265-3.3.ebuild | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) Additionally, it has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fe5c3453d9b642af66fbbc09c9b0e844034bc21f commit fe5c3453d9b642af66fbbc09c9b0e844034bc21f Author: Georgy Yakovlev <gyakovlev@gentoo.org> AuthorDate: 2020-05-25 05:02:39 +0000 Commit: Georgy Yakovlev <gyakovlev@gentoo.org> CommitDate: 2020-05-25 05:09:58 +0000 media-libs/x265: sync live ebuild Bug: https://bugs.gentoo.org/725134 Package-Manager: Portage-2.3.100, Repoman-2.3.22 Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org> media-libs/x265/x265-9999.ebuild | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-)
