$OpenBSD: patch-boehm-gc_include_gc_config_macros_h,v 1.1 2011/11/14 12:45:55 pascal Exp $
--- boehm-gc/include/gc_config_macros.h.orig Sat Nov 12 09:56:59 2011
+++ boehm-gc/include/gc_config_macros.h Sat Nov 12 09:57:55 2011
@@ -55,6 +55,10 @@
# define GC_FREEBSD_THREADS
# define GC_PTHREADS
# endif
+# if !defined(GC_PTHREADS) && defined(__OpenBSD__)
+# define GC_FREEBSD_THREADS
+# define GC_PTHREADS
+# endif
# if defined(DGUX) && (defined(i386) || defined(__i386__))
# define GC_DGUX386_THREADS
# define GC_PTHREADS