include(CheckCXXCompilerFlag)

check_cxx_compiler_flag(-Wall OPENMP_HAVE_WALL_FLAG)
check_cxx_compiler_flag(-Werror OPENMP_HAVE_WERROR_FLAG)

# Additional warnings that are not enabled by -Wall.
check_cxx_compiler_flag(-Wcast-qual OPENMP_HAVE_WCAST_QUAL_FLAG)
check_cxx_compiler_flag(-Wformat-pedantic OPENMP_HAVE_WFORMAT_PEDANTIC_FLAG)
check_cxx_compiler_flag(-Wimplicit-fallthrough OPENMP_HAVE_WIMPLICIT_FALLTHROUGH_FLAG)
check_cxx_compiler_flag(-Wsign-compare OPENMP_HAVE_WSIGN_COMPARE_FLAG)

# Warnings that we want to disable because they are too verbose or fragile.
check_cxx_compiler_flag(-Wno-extra OPENMP_HAVE_WNO_EXTRA_FLAG)
check_cxx_compiler_flag(-Wno-pedantic OPENMP_HAVE_WNO_PEDANTIC_FLAG)
check_cxx_compiler_flag(-Wno-maybe-uninitialized OPENMP_HAVE_WNO_MAYBE_UNINITIALIZED_FLAG)

check_cxx_compiler_flag(-std=gnu++14 OPENMP_HAVE_STD_GNUPP14_FLAG)
check_cxx_compiler_flag(-std=c++14 OPENMP_HAVE_STD_CPP14_FLAG)