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Matching clang.
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@ -67,8 +67,7 @@ else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
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endif(NOT CMAKE_CXX_FLAGS MATCHES "-Wextra")
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# Use -Werror for clang only.
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# There are many clang compiler ID's, but only one gcc.
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if(NOT CMAKE_CXX_COMPILER_ID STREQUAL "GCC")
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if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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if(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
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endif(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
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