$NetBSD: patch-ac,v 1.1 2004/10/22 16:03:14 jmmv Exp $

--- calendar/libical/configure.orig	2004-10-11 21:08:22.000000000 +0200
+++ calendar/libical/configure
@@ -20764,7 +20764,7 @@ fi
 
 
 
-for ac_func in gmtime_r isspace iswspace strdup snprintf
+for ac_func in gmtime_r isspace iswspace strdup snprintf unsetenv
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5