pidgin: fixed to check if meanwhile nm avahi nss gnutls are installed effectively

gnome2/pidgin/pidgin.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../pidgin/pidgin.conf
-# Copyright (C) 2006 - 2009 The OpenSDE Project
+# Copyright (C) 2006 - 2011 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -16,7 +16,7 @@ var_append confopt ' ' "--disable-schemas-install"
 
 # we don't have meanwhile, NetworkManager or nss yet
 for x in meanwhile nm avahi nss gnutls; do
-	if ! pkginstalled "$x"; then
+	if ! pkginstalled -f "$x"; then
 		var_append extraconfopt ' ' "--disable-$x"
 	fi
 done