--- boehm-gc/include/gc_config.h.in.orig	2012-11-04 22:56:02 UTC
+++ boehm-gc/include/gc_config.h.in
@@ -27,6 +27,9 @@
 /* support for DB/UX on I386 threads */
 #undef GC_DGUX386_THREADS
 
+/* support BSDSUniX threads */
+#undef GC_BSDSUNIX_THREADS
+
 /* support FreeBSD threads */
 #undef GC_FREEBSD_THREADS