cmake OPENMP_HAVE_WSIGN_COMPARE_FLAG examples

Lewuathe/mlir-hello thirdparty/llvm-project/openmp/cmake/config-ix.cmake :27

check_cxx_compiler_flag(-Wsign-compare OPENMP_HAVE_WSIGN_COMPARE_FLAG)

llvm-mirror/openmp cmake/config-ix.cmake :10

check_cxx_compiler_flag(-Wsign-compare OPENMP_HAVE_WSIGN_COMPARE_FLAG)