| Austin Schuh | 745610d | 2015-09-06 18:19:50 -0700 | [diff] [blame] | 1 | # We check what namespace stl code like vector expects to be executed in |
| 2 | |
| 3 | AC_DEFUN([AC_CXX_STL_NAMESPACE], |
| 4 | [AC_CACHE_CHECK( |
| 5 | what namespace STL code is in, |
| 6 | ac_cv_cxx_stl_namespace, |
| 7 | [AC_REQUIRE([AC_CXX_NAMESPACES]) |
| 8 | AC_LANG_SAVE |
| 9 | AC_LANG_CPLUSPLUS |
| 10 | AC_TRY_COMPILE([#include <vector>], |
| 11 | [vector<int> t; return 0;], |
| 12 | ac_cv_cxx_stl_namespace=none) |
| 13 | AC_TRY_COMPILE([#include <vector>], |
| 14 | [std::vector<int> t; return 0;], |
| 15 | ac_cv_cxx_stl_namespace=std) |
| 16 | AC_LANG_RESTORE]) |
| 17 | if test "$ac_cv_cxx_stl_namespace" = none; then |
| 18 | AC_DEFINE(STL_NAMESPACE,, |
| 19 | [the namespace where STL code like vector<> is defined]) |
| 20 | fi |
| 21 | if test "$ac_cv_cxx_stl_namespace" = std; then |
| 22 | AC_DEFINE(STL_NAMESPACE,std, |
| 23 | [the namespace where STL code like vector<> is defined]) |
| 24 | fi |
| 25 | ]) |