commit: 0757e1e630fba6b5f064002bdc18e173d47fdc5f Author: Ionen Wolkens <ionen <AT> gentoo <DOT> org> AuthorDate: Mon Jun 26 09:58:42 2023 +0000 Commit: Ionen Wolkens <ionen <AT> gentoo <DOT> org> CommitDate: Mon Jun 26 10:10:10 2023 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0757e1e6
dev-util/mingw64-toolchain: pass -mno-avx for mingw cross AVX issues with mingw-gcc aren't exactly new, e.g. https://bugs.winehq.org/show_bug.cgi?id=45289 Been known to cause issues with dxvk too, albeit unsure if that's still relevant as issues are scattered/lost. Newly, >=wine-8.10 is likely to crash doing anything at all 32bit if used -march=native (w/ avx) and 32bit (e.g. `WINEARCH=win32 winecfg`). Adding this to every packages using mingw as a precaution, not believed there is much to gain from keeping AVX given the fragility here. May revisit eventually with a newer GCC. Not known to have caused issues with this package in particular (unlike wine/dxvk), so skipping a slow rebuild revbump. Signed-off-by: Ionen Wolkens <ionen <AT> gentoo.org> dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p1-r2.ebuild | 7 +++++++ dev-util/mingw64-toolchain/mingw64-toolchain-11.0.0.ebuild | 7 +++++++ 2 files changed, 14 insertions(+) diff --git a/dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p1-r2.ebuild b/dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p1-r2.ebuild index 82af5181e021..cb802c55f8b1 100644 --- a/dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p1-r2.ebuild +++ b/dev-util/mingw64-toolchain/mingw64-toolchain-10.0.0_p1-r2.ebuild @@ -193,6 +193,13 @@ src_compile() { filter-flags '-fstack-protector*' #870136 filter-flags '-fuse-ld=*' filter-flags '-mfunction-return=thunk*' #878849 + + # -mavx with mingw-gcc has a history of obscure issues and + # disabling is seen as safer, e.g. `WINEARCH=win32 winecfg` + # crashes with -march=skylake >=wine-8.10, similar issues with + # znver4: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110273 + append-flags -mno-avx + strip-unsupported-flags mwt-build "${@:2}" ) diff --git a/dev-util/mingw64-toolchain/mingw64-toolchain-11.0.0.ebuild b/dev-util/mingw64-toolchain/mingw64-toolchain-11.0.0.ebuild index d4fe6b516d10..803cd398d9be 100644 --- a/dev-util/mingw64-toolchain/mingw64-toolchain-11.0.0.ebuild +++ b/dev-util/mingw64-toolchain/mingw64-toolchain-11.0.0.ebuild @@ -201,6 +201,13 @@ src_compile() { CHOST=${CTARGET} filter-flags '-fuse-ld=*' filter-flags '-mfunction-return=thunk*' #878849 + + # -mavx with mingw-gcc has a history of obscure issues and + # disabling is seen as safer, e.g. `WINEARCH=win32 winecfg` + # crashes with -march=skylake >=wine-8.10, similar issues with + # znver4: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110273 + append-flags -mno-avx + strip-unsupported-flags mwt-build "${@:2}" )
