I'm running an old copy version 4.0 and the compiler cl says unknown option. So at least new one is keeping up, doing it the right way I think, providing an non-default option only. But finally I got access to www.cyberspace.org to compile in OpenBSD now. The gcc compiler gives a warning there saying assignment of read-only location but compiles. There is a segmentation fault when you run the program. A little better than no warning and segmentation fault!