diff --git a/databases/postgresql/patches/patch-configure_in b/databases/postgresql/patches/patch-configure_in
new file mode 100644
index 00000000000..5276b73280d
--- /dev/null
+++ b/databases/postgresql/patches/patch-configure_in
@@ -0,0 +1,11 @@
+$OpenBSD: patch-configure_in,v 1.1 2002/02/05 17:27:38 espie Exp $
+--- configure.in.orig	Tue Feb  5 18:16:24 2002
++++ configure.in	Tue Feb  5 18:16:32 2002
+@@ -21,6 +21,7 @@ define([infodir], [docdir])
+ AC_INIT(src/backend/access/common/heaptuple.c)
+ undefine([infodir])
+ undefine([info])
++undefine([unix])
+ 
+ AC_PREFIX_DEFAULT(/usr/local/pgsql)
+ AC_CONFIG_HEADER(src/include/config.h)