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dev-util/mingw64-runtime: pass -mno-avx for mingw cross

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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.

Unlike other ebuilds, also bother doing tc-is-gcc given what's
used is more up in the air for this ebuild.

Signed-off-by: Ionen Wolkens <ionen@gentoo.org>
This commit is contained in:
Ionen Wolkens
2023-06-26 06:08:49 -04:00
parent 0757e1e630
commit d3bc1d3123
2 changed files with 15 additions and 1 deletions
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9
dev-util/mingw64-runtime/mingw64-runtime-10.0.0-r1.ebuild
View File

@@ -1,4 +1,4 @@
# Copyright 1999-2022 Gentoo Authors
# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
@@ -70,6 +70,13 @@ src_configure() {
filter-flags '-mfunction-return=thunk*' #878849
fi
local CHOST=${CTARGET}
# -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
tc-is-gcc && append-flags -mno-avx
strip-unsupported-flags
# Normally mingw64 does not use dynamic linker.

7
dev-util/mingw64-runtime/mingw64-runtime-11.0.0.ebuild
View File

@@ -65,6 +65,13 @@ src_configure() {
filter-flags '-mfunction-return=thunk*' #878849
fi
local CHOST=${CTARGET}
# -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
tc-is-gcc && append-flags -mno-avx
strip-unsupported-flags
# Normally mingw64 does not use dynamic linker, but at configure time it