Use AC_LANG_SOURCE.

diff --git a/ChangeLog b/ChangeLog
index c5e02dd..0319e7e 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2011-02-08  Roland McGrath  <roland@redhat.com>
 
+       * configure.ac (C99 check): Use AC_LANG_SOURCE.
+
        * configure.ac (ALL_LINGUAS): Remove variable, now obsolete.
 
 2010-09-13  Ulrich Drepper  <drepper@redhat.com>

diff --git a/configure.ac b/configure.ac
index 533d50e..1069831 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -63,8 +63,8 @@ AM_PROG_LEX
 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
 old_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -std=gnu99"
-AC_COMPILE_IFELSE([dnl
-int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
+int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }])],
                  ac_cv_c99=yes, ac_cv_c99=no)
 CFLAGS="$old_CFLAGS"])
 AS_IF([test "x$ac_cv_c99" != xyes],