return clone(fn, child_stack, CLONE_FILES | SIGCHLD, arg);
}
-#elif __FreeBSD__
+#elif defined(__FreeBSD__)
#include <unistd.h>
}
#else
-#error "Please add support for your OS into compat/clone.h."
+#error "Please add support for your OS."
#endif /* __linux__ , __FreeBSD__ */
#endif /* _COMPAT_CLONE_H */