_GL_HAS_BUILTIN_UNREACHABLE  264 lib/verify.h   # define _GL_HAS_BUILTIN_UNREACHABLE 1
_GL_HAS_BUILTIN_UNREACHABLE  266 lib/verify.h   # define _GL_HAS_BUILTIN_UNREACHABLE __has_builtin (__builtin_unreachable)
_GL_HAS_BUILTIN_UNREACHABLE  268 lib/verify.h   # define _GL_HAS_BUILTIN_UNREACHABLE 0