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authorCaolán McNamara <caolanm@redhat.com>2011-08-04 17:05:45 +0100
committerCaolán McNamara <caolanm@redhat.com>2011-08-04 17:05:45 +0100
commitb83057f6a8fd6fd3bf547d3b725f3031e9974b12 (patch)
tree0f8e1fa3feeb2c941efe72541e8249804741d6ba /configure.in
parenta1e9dea1ff4a584d331c04ef03275c0dc07af078 (diff)
just check for support of -mno-avx
Diffstat (limited to 'configure.in')
-rwxr-xr-xconfigure.in12
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index cf308dcc33d0..841156acebff 100755
--- a/configure.in
+++ b/configure.in
@@ -3224,6 +3224,17 @@ if test "$GCC" = "yes"; then
AC_MSG_RESULT([no])
fi
+ AC_MSG_CHECKING([whether $CC supports -mno-avx])
+ save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS -Werror -mno-avx"
+ AC_TRY_LINK([], [ return 0; ], [ HAVE_GCC_AVX=TRUE ], [])
+ CFLAGS=$save_CFLAGS
+ if test "$HAVE_GCC_AVX" = "TRUE"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+
AC_MSG_CHECKING([whether $CC supports -std=c++0x without Language Defect 757])
save_CXXFLAGS=$CFLAGS
CXXFLAGS="$CXXFLAGS -std=c++0x"
@@ -3266,6 +3277,7 @@ fi
AC_SUBST(HAVE_CXX0X)
AC_SUBST(HAVE_GCC_NO_LONG_DOUBLE)
+AC_SUBST(HAVE_GCC_AVX)
# ===================================================================
# use ccache?