Cleaned curl by using configcache list

network/curl/curl.conf

@@ -1,7 +1,8 @@
-# --- T2-COPYRIGHT-NOTE-BEGIN ---
+# --- SDE-COPYRIGHT-NOTE-BEGIN ---
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 # 
-# T2 SDE: package/.../curl/curl.conf
+# Filename: package/.../curl/curl.conf
+# Copyright (C) 2007 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 # 
@@ -11,13 +12,13 @@
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; version 2 of the License. A copy of the
 # GNU General Public License can be found in the file COPYING.
-# --- T2-COPYRIGHT-NOTE-END ---
+# --- SDE-COPYRIGHT-NOTE-END ---
 
 if ! atstage native; then
 	# work arround configure mess
 	confopt="$confopt --without-ssl"
-	hook_add preconf 5 "$preconf echo ac_cv_path_PKGCONFIG=/tmp/nothing >> \
-		config.cache"
+
+	var_append configcache ' ' 'ac_cv_path_PKGCONFIG=/tmp/nothing'
 fi
 
 if [ "$SDECFG_STATIC" = "1" ] ; then