The ipkg in this directory have been built with the following SDK:

http://downloads.openwrt.org/snapshots/brcm-2.4/OpenWrt-SDK-brcm-2.4-for-Linux-i686.tar.bz2

I didn't test them yet.

A discussion about problems encountered when building it can be found here:

http://forum.openwrt.org/viewtopic.php?pid=59391