[arch-general] Objective C ABI version

Hi, I have a small question about ObjC ABI. (See openvpn-authldap-plugin: http://aur.archlinux.org/packages.php?ID=30584) This package can be built only with export OBJCFLAGS=-fobjc-abi-version=2 As I understand gcc-objc uses ABI version 0 by default, but this ABI support already dropped from libobjc. So I get "undefined reference to `objc_msgSend'" errors in default build. (like this: https://bugs.launchpad.net/ubuntu/+source/openvpn-auth-ldap/+bug/771029) Is there any way to fix default gcc-objc ABI version?