__clang__          59 opal/include/opal_stdint.h #if defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 6)
__clang__          60 opal/mca/pmix/pmix4x/pmix/src/include/pmix_stdint.h #if defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 6)