21 lines
677 B
Plaintext
21 lines
677 B
Plaintext
|
dnl Available from the GNU Autoconf Macro Archive at:
|
||
|
|
dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_map.html
|
||
|
|
dnl
|
||
|
|
AC_DEFUN([AC_CXX_HAVE_EXT_HASH_MAP],
|
||
|
|
[AC_CACHE_CHECK(whether the compiler has ext/hash_map,
|
||
|
|
ac_cv_cxx_have_ext_hash_map,
|
||
|
|
[AC_REQUIRE([AC_CXX_NAMESPACES])
|
||
|
|
AC_LANG_SAVE
|
||
|
|
AC_LANG_CPLUSPLUS
|
||
|
|
AC_TRY_COMPILE([#include <ext/hash_map>
|
||
|
|
#ifdef HAVE_NAMESPACES
|
||
|
|
using namespace std;
|
||
|
|
#endif],[hash_map<int, int> t; return 0;],
|
||
|
|
ac_cv_cxx_have_ext_hash_map=yes, ac_cv_cxx_have_ext_hash_map=no)
|
||
|
|
AC_LANG_RESTORE
|
||
|
|
])
|
||
|
|
if test "$ac_cv_cxx_have_ext_hash_map" = yes; then
|
||
|
|
AC_DEFINE(HAVE_EXT_HASH_MAP,,[define if the compiler has ext/hash_map])
|
||
|
|
fi
|
||
|
|
])
|