While building of 32bit Mesa gcc doesn't specifies __SSE__ by default. So it has to be done manually by flag '-msee'. Added support of such specification to build-system.
CC: Dylan Baker <dy...@pnwbakers.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108560 Signed-off-by: Sergii Romantsov <sergii.romant...@globallogic.com> --- configure.ac | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/configure.ac b/configure.ac index ab9bdce..f88ac87 100644 --- a/configure.ac +++ b/configure.ac @@ -421,13 +421,27 @@ dnl dnl Optional flags, check for compiler support dnl SSE41_CFLAGS="-msse4.1" +dnl +dnl x86_64 enables -msse by default, on x86 it required to be enabled manually +dnl +SSE_CFLAGS= +SSE_CXXFLAGS= + dnl Code compiled by GCC with -msse* assumes a 16 byte aligned dnl stack, but on x86-32 such alignment is not guaranteed. case "$target_cpu" in i?86) SSE41_CFLAGS="$SSE41_CFLAGS -mstackrealign" + AX_CHECK_COMPILE_FLAG([-msse], [SSE_CFLAGS="-msse -mstackrealign"]) + AC_LANG_PUSH([C++]) + AX_CHECK_COMPILE_FLAG([-msse], [SSE_CXXFLAGS="-msse -mstackrealign"]) + AC_LANG_POP([C++]) ;; esac +AC_SUBST([SSE_CFLAGS], $SSE_CFLAGS) +AC_SUBST([SSE_CXXFLAGS], $SSE_CXXFLAGS) +AM_CONDITIONAL([SSE_CFLAGS], [test -n x$SSE_CFLAGS]) + save_CFLAGS="$CFLAGS" CFLAGS="$SSE41_CFLAGS $CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ -- 2.7.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
