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