| # - Check if for hash_set. |
| # CHECK_HASHSET () |
| # |
| |
| include(CheckCXXSourceCompiles) |
| |
| macro(CHECK_HASHSET) |
| message(STATUS "Checking for C++ hash_set implementation...") |
| check_cxx_source_compiles(" |
| #include <ext/hash_set> |
| int main() { |
| __gnu_cxx::hash_set<int> t; |
| } |
| " |
| HAVE_GNU_EXT_HASH_SET |
| ) |
| if(HAVE_GNU_EXT_HASH_SET) |
| message(STATUS "C++ hash_set found in 'ext' dir in namespace __gnu_cxx::") |
| endif(HAVE_GNU_EXT_HASH_SET) |
| |
| check_cxx_source_compiles(" |
| #include <ext/hash_set> |
| int main() { |
| std::hash_set<int> t; |
| } |
| " |
| HAVE_STD_EXT_HASH_SET |
| ) |
| if(HAVE_STD_EXT_HASH_SET) |
| message(STATUS "C++ hash_set found in 'ext' dir in namespace std::") |
| endif(HAVE_STD_EXT_HASH_SET) |
| |
| check_cxx_source_compiles(" |
| #include <hash_set> |
| int main() { |
| hash_set<int> t; |
| } |
| " |
| HAVE_GLOBAL_HASH_SET |
| ) |
| if(HAVE_GLOBAL_HASH_SET) |
| message(STATUS "C++ hash_set found in global namespace") |
| endif(HAVE_GLOBAL_HASH_SET) |
| |
| if(NOT HAVE_GNU_EXT_HASH_SET) |
| if(NOT HAVE_STD_EXT_HASH_SET) |
| if(NOT HAVE_GLOBAL_HASH_SET) |
| message(STATUS "C++ hash_set not found") |
| endif(NOT HAVE_GLOBAL_HASH_SET) |
| endif(NOT HAVE_STD_EXT_HASH_SET) |
| endif(NOT HAVE_GNU_EXT_HASH_SET) |
| endmacro(CHECK_HASHSET) |