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https://github.com/c64scene-ar/llvm-6502.git
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54 lines
1.2 KiB
CMake
54 lines
1.2 KiB
CMake
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# - Check if for hash_map.
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# CHECK_HASHMAP ()
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#
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include(CheckCXXSourceCompiles)
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macro(CHECK_HASHMAP)
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message(STATUS "Checking for C++ hash_map implementation...")
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check_cxx_source_compiles("
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#include <ext/hash_map>
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int main() {
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__gnu_cxx::hash_map<int, int> t;
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}
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"
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HAVE_GNU_EXT_HASH_MAP
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)
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if(HAVE_GNU_EXT_HASH_MAP)
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message(STATUS "C++ hash_map found in 'ext' dir in namespace __gnu_cxx::")
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endif(HAVE_GNU_EXT_HASH_MAP)
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check_cxx_source_compiles("
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#include <ext/hash_map>
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int main() {
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std::hash_map<int, int> t;
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}
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"
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HAVE_STD_EXT_HASH_MAP
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)
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if(HAVE_STD_EXT_HASH_MAP)
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message(STATUS "C++ hash_map found in 'ext' dir in namespace std::")
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endif(HAVE_STD_EXT_HASH_MAP)
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check_cxx_source_compiles("
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#include <hash_map>
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int main() {
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hash_map<int, int> t;
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}
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"
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HAVE_GLOBAL_HASH_MAP
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)
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if(HAVE_GLOBAL_HASH_MAP)
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message(STATUS "C++ hash_map found in global namespace")
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endif(HAVE_GLOBAL_HASH_MAP)
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if(NOT HAVE_GNU_EXT_HASH_MAP)
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if(NOT HAVE_STD_EXT_HASH_MAP)
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if(NOT HAVE_GLOBAL_HASH_MAP)
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message(STATUS "C++ hash_map not found")
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endif(NOT HAVE_GLOBAL_HASH_MAP)
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endif(NOT HAVE_STD_EXT_HASH_MAP)
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endif(NOT HAVE_GNU_EXT_HASH_MAP)
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endmacro(CHECK_HASHMAP)
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