| # Check for standard iterator extension. This is modified from |
| # http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html |
| AC_DEFUN([AC_CXX_HAVE_STD_ITERATOR], |
| [AC_CACHE_CHECK(whether the compiler has the standard iterator, |
| ac_cv_cxx_have_std_iterator, |
| [AC_REQUIRE([AC_CXX_NAMESPACES]) |
| 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_POP([C++]) |
| ]) |
| if test "$ac_cv_cxx_have_std_iterator" = yes |
| then |
| AC_DEFINE(HAVE_STD_ITERATOR,1,[Have std namespace iterator]) |
| else |
| AC_DEFINE(HAVE_STD_ITERATOR,0,[Does not have std namespace iterator]) |
| fi |
| ]) |
| |
| |
