From 40b601fbb774cd2be2f6cbe7155570340fc475a2 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Wed, 21 Mar 2012 16:33:57 +0000
Subject: Use autoconf macro for testing compiler options with empty input.

---
 configure.in | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index ee5e856..bb3b057 100644
--- a/configure.in
+++ b/configure.in
@@ -2005,10 +2005,9 @@ if test -n "$submachine"; then
 		 libc_cv_cc_submachine, [dnl
   libc_cv_cc_submachine=no
   for opt in "-march=$submachine" "-mcpu=$submachine"; do
-    if AC_TRY_COMMAND([${CC-cc} $opt -xc /dev/null -S -o /dev/null]); then
+    LIBC_TRY_CC_OPTION([$opt], [
       libc_cv_cc_submachine="$opt"
-      break
-    fi
+      break], [])
   done])
   if test "x$libc_cv_cc_submachine" = xno; then
     AC_MSG_ERROR([${CC-cc} does not support $submachine])
-- 
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