__has_builtin     111 lib/intprops-internal.h #elif defined __has_builtin
__has_builtin     112 lib/intprops-internal.h # define _GL_HAS_BUILTIN_ADD_OVERFLOW __has_builtin (__builtin_add_overflow)
__has_builtin     136 lib/intprops-internal.h #elif defined __has_builtin
__has_builtin     137 lib/intprops-internal.h # define _GL_HAS_BUILTIN_OVERFLOW_P __has_builtin (__builtin_mul_overflow_p)