$NetBSD: patch-aj,v 1.1.1.1 2007/06/04 23:38:40 dmcmahill Exp $

--- libguile/_scm.h.orig	2005-09-05 16:15:00.000000000 +0200
+++ libguile/_scm.h
@@ -111,7 +111,9 @@
 # define SCM_SYSCALL(line) line;
 #endif /* ndef SCM_SYSCALL */
 
-#if !defined (MSDOS) && !defined (__MINGW32__)
+#include <errno.h>
+
+#if !defined (MSDOS) && !defined (__MINGW32__) && !defined(errno)
 # ifdef ARM_ULIB
     extern volatile int errno;
 # else