From a11ec63713ea3903c482dc907a108be404191a02 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hongjiu.lu@intel.com>
Date: Wed, 14 Apr 2010 22:27:59 -0700
Subject: Add x86-32 FMA support

---
 sysdeps/i386/configure.in | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'sysdeps/i386/configure.in')

diff --git a/sysdeps/i386/configure.in b/sysdeps/i386/configure.in
index 9fc7fa59fe..d8dd648f80 100644
--- a/sysdeps/i386/configure.in
+++ b/sysdeps/i386/configure.in
@@ -55,3 +55,14 @@ if AC_TRY_COMMAND([${CC-cc} -Wa,-mtune=i686 -xc /dev/null -S -o /dev/null]); the
 else
   libc_cv_as_i686=no
 fi])
+
+dnl Check if -mavx works.
+AC_CACHE_CHECK(for AVX support, libc_cv_cc_avx, [dnl
+if AC_TRY_COMMAND([${CC-cc} -mavx -xc /dev/null -S -o /dev/null]); then
+  libc_cv_cc_avx=yes
+else
+  libc_cv_cc_avx=no
+fi])
+if test $libc_cv_cc_avx = yes; then
+  AC_DEFINE(HAVE_AVX_SUPPORT)
+fi
-- 
cgit 1.4.1