diff options
Diffstat (limited to 'autoconf/m4/cxx_fwd_iterator.m4')
| -rw-r--r-- | autoconf/m4/cxx_fwd_iterator.m4 | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/autoconf/m4/cxx_fwd_iterator.m4 b/autoconf/m4/cxx_fwd_iterator.m4 index 8da2944..73711b5 100644 --- a/autoconf/m4/cxx_fwd_iterator.m4 +++ b/autoconf/m4/cxx_fwd_iterator.m4 @@ -4,14 +4,12 @@ AC_DEFUN([AC_CXX_HAVE_FWD_ITERATOR], [AC_CACHE_CHECK(whether the compiler has forward iterators, ac_cv_cxx_have_fwd_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],[forward_iterator<int,int> t; return 0;], - ac_cv_cxx_have_fwd_iterator=yes, ac_cv_cxx_have_fwd_iterator=no) - AC_LANG_RESTORE +#endif]], [[forward_iterator<int,int> t; return 0;]])],[ac_cv_cxx_have_fwd_iterator=yes],[ac_cv_cxx_have_fwd_iterator=no]) + AC_LANG_POP([C++]) ]) HAVE_FWD_ITERATOR=0 if test "$ac_cv_cxx_have_fwd_iterator" = yes |