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enable_language (C)
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include(CheckCCompilerFlag)
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set(C 1) # test that this is tolerated
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if(NOT CMAKE_C_COMPILER_ID STREQUAL "PathScale")
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set(DD --)
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endif()
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check_c_compiler_flag("${DD}-_this_is_not_a_flag_" C_BOGUS_FLAG)
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if(C_BOGUS_FLAG)
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message(SEND_ERROR "CHECK_C_COMPILER_FLAG() succeeded, but should have failed")
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endif()
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unset(C_BOGUS_FLAG CACHE)
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if(DEFINED C_BOGUS_FLAG)
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# Verify that CHECK_C_COMPILER_FLAG didn't construct a normal variable
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message(SEND_ERROR "CHECK_C_COMPILER_FLAG shouldn't construct C_BOGUS_FLAG as a normal variable")
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endif()
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_C_COMPILER_ID STREQUAL "LCC")
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unset(C_STRICT_PROTOTYPES CACHE)
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CHECK_C_COMPILER_FLAG("-Werror;-Wstrict-prototypes" C_STRICT_PROTOTYPES)
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if(NOT C_STRICT_PROTOTYPES)
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message(SEND_ERROR "CHECK_C_COMPILER_FLAG failed -Werror -Wstrict-prototypes")
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endif()
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endif()
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