diff options
Diffstat (limited to 'autoconf/m4/cxx_std_iterator.m4')
| -rw-r--r-- | autoconf/m4/cxx_std_iterator.m4 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/autoconf/m4/cxx_std_iterator.m4 b/autoconf/m4/cxx_std_iterator.m4 new file mode 100644 index 0000000000000..38a611764c790 --- /dev/null +++ b/autoconf/m4/cxx_std_iterator.m4 @@ -0,0 +1,26 @@ +# 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 +]) + + |