$OpenBSD$
--- src/boehm-gc/threadlibs.c.orig	Mon Feb 13 18:14:20 2006
+++ src/boehm-gc/threadlibs.c	Mon Apr 10 07:56:57 2006
@@ -17,6 +17,9 @@ int main()
 	|| defined(GC_DARWIN_THREADS) || defined(GC_AIX_THREADS)
         printf("-lpthread\n");
 #   endif
+#   if defined(GC_OPENBSD_PTHREADS)
+        printf("-pthread\n");
+#   endif
 #   if defined(GC_FREEBSD_THREADS)
 #       if (__FREEBSD_version >= 500000)
           printf("-lpthread\n");
