Bring the script out of the dark ages and into modern autoconfness.
llvm-svn: 16415
diff --git a/llvm/autoconf/m4/cxx_std_iterator.m4 b/llvm/autoconf/m4/cxx_std_iterator.m4
index 46665f2..578dcc4 100644
--- a/llvm/autoconf/m4/cxx_std_iterator.m4
+++ b/llvm/autoconf/m4/cxx_std_iterator.m4
@@ -4,14 +4,16 @@
[AC_CACHE_CHECK(whether the compiler has the standard iterator,
ac_cv_cxx_have_std_iterator,
[AC_REQUIRE([AC_CXX_NAMESPACES])
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <iterator>
+ AC_LANG_PUSH([C++])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+ [[#include <iterator>
#ifdef HAVE_NAMESPACES
using namespace std;
-#endif],[iterator<int,int,int> t; return 0;],
- ac_cv_cxx_have_std_iterator=yes, ac_cv_cxx_have_std_iterator=no)
- AC_LANG_RESTORE
+#endif]],
+ [[iterator<int,int,int> t; return 0;]])],
+ ac_cv_cxx_have_std_iterator=yes,
+ ac_cv_cxx_have_std_iterator=no)
+ AC_LANG_POP([C++])
])
HAVE_STD_ITERATOR=0
if test "$ac_cv_cxx_have_std_iterator" = yes