asterisk-addons: fixed to always use the same prefix asterisk is using

network/asterisk-addons/asterisk-addons.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../asterisk-addons/asterisk-addons.conf
-# Copyright (C) 2006 The OpenSDE Project
+# Copyright (C) 2006 - 2011 The OpenSDE Project
 # Copyright (C) 2006 The T2 SDE Project
 #
 # More information can be found in the files COPYING and README.
@@ -15,6 +15,10 @@
 
 pkgprefix -t asterisk
 
+# always use the prefix asterisk is using
+prefix="$(pkgprefix asterisk)"
+set_confopt
+
 var_append makeopt ' ' "ASTLIBDIR=$( pkgprefix libdir asterisk )"
 var_append makeinstopt ' ' "ASTLIBDIR=$( pkgprefix libdir asterisk )"