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26 lines
625 B
CMake
26 lines
625 B
CMake
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# - Module that checks for supported C99 features.
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# macro to only add option once
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include (AddOptions)
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# try to use compiler flag -std=c99
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set (C_STD99_FLAGS "-std=c99")
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# incidently, the C++ test is so simple that it can be used to compile C as well
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include (CheckCCompilerFlag)
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check_c_compiler_flag (${C_STD99_FLAGS} HAVE_C99)
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# add option if we are capable
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if (HAVE_C99)
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add_options (C ALL_BUILDS "${C_STD99_FLAGS}")
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else (HAVE_C99)
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set (C_STD99_FLAGS)
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endif (HAVE_C99)
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# handle quiet and required
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include (FindPackageHandleStandardArgs)
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find_package_handle_standard_args (C99
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DEFAULT_MSG
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C_STD99_FLAGS
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)
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