forked from OSchip/llvm-project
53 lines
1.2 KiB
CMake
Executable File
53 lines
1.2 KiB
CMake
Executable File
# - Check if for hash_set.
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# CHECK_HASHSET ()
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#
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include(CheckCXXSourceCompiles)
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macro(CHECK_HASHSET)
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message(STATUS "Checking for C++ hash_set implementation...")
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check_cxx_source_compiles("
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#include <ext/hash_set>
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int main() {
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__gnu_cxx::hash_set<int> t;
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}
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"
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HAVE_GNU_EXT_HASH_SET
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)
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if(HAVE_GNU_EXT_HASH_SET)
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message(STATUS "C++ hash_set found in 'ext' dir in namespace __gnu_cxx::")
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endif(HAVE_GNU_EXT_HASH_SET)
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check_cxx_source_compiles("
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#include <ext/hash_set>
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int main() {
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std::hash_set<int> t;
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}
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"
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HAVE_STD_EXT_HASH_SET
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)
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if(HAVE_STD_EXT_HASH_SET)
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message(STATUS "C++ hash_set found in 'ext' dir in namespace std::")
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endif(HAVE_STD_EXT_HASH_SET)
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check_cxx_source_compiles("
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#include <hash_set>
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int main() {
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hash_set<int> t;
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}
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"
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HAVE_GLOBAL_HASH_SET
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)
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if(HAVE_GLOBAL_HASH_SET)
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message(STATUS "C++ hash_set found in global namespace")
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endif(HAVE_GLOBAL_HASH_SET)
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if(NOT HAVE_GNU_EXT_HASH_SET)
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if(NOT HAVE_STD_EXT_HASH_SET)
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if(NOT HAVE_GLOBAL_HASH_SET)
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message(STATUS "C++ hash_set not found")
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endif(NOT HAVE_GLOBAL_HASH_SET)
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endif(NOT HAVE_STD_EXT_HASH_SET)
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endif(NOT HAVE_GNU_EXT_HASH_SET)
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endmacro(CHECK_HASHSET)
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