$OpenBSD: patch-scm_posix_c,v 1.2 2001/02/03 20:42:47 espie Exp $
--- posix.c.orig	Thu Oct 14 05:46:15 1999
+++ posix.c	Tue Jan 30 14:14:04 2001
@@ -60,6 +60,10 @@
 # else
 #  ifdef linux
 #    include <unistd.h>
+#  else
+#   ifdef __OpenBSD__
+#    include <unistd.h>
+#   endif
 #  endif
 # endif
 #endif