26 lines
1009 B
CMake
26 lines
1009 B
CMake
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if(CMAKE_CXX_STANDARD AND NOT DEFINED CMake_HAVE_CXX11_UNORDERED_MAP)
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message(STATUS "Checking if compiler supports C++11 unordered_map")
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try_compile(CMake_HAVE_CXX11_UNORDERED_MAP
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${CMAKE_CURRENT_BINARY_DIR}
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${CMAKE_CURRENT_LIST_DIR}/cm_cxx11_unordered_map.cpp
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CMAKE_FLAGS -DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}
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OUTPUT_VARIABLE OUTPUT
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)
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if(CMake_HAVE_CXX11_UNORDERED_MAP)
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message(STATUS "Checking if compiler supports C++11 unordered_map - yes")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if compiler supports C++11 unordered_map passed with the following output:\n"
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"${OUTPUT}\n"
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"\n"
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)
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else()
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message(STATUS "Checking if compiler supports C++11 unordered_map - no")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if compiler supports C++11 unordered_map failed with the following output:\n"
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"${OUTPUT}\n"
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"\n"
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)
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endif()
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endif()
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