$NetBSD: patch-lib_configure,v 1.3 2011/08/22 15:14:58 wiz Exp $

--- lib/configure.orig	2011-08-20 22:21:59.000000000 +0000
+++ lib/configure
@@ -17354,6 +17354,7 @@ else
   ZLIB_HAS_PKGCONFIG=n
 fi
 
+if false; then # there is no zlib.pc in pkgsrc
 if test x$ac_zlib != xno; then
   if test "$ZLIB_HAS_PKGCONFIG" = "y" ; then
     if test "x$GNUTLS_REQUIRES_PRIVATE" = "x"; then
@@ -17365,6 +17366,7 @@ if test x$ac_zlib != xno; then
     GNUTLS_ZLIB_LIBS_PRIVATE="$LTLIBZ"
   fi
 fi
+fi