cross-building nixpkgs implementation, were not referenced anywhere.
This new busybox builds natively, and also cross-builds with uclibc.
I updated the uclibc config with a busybox defconfig requirement (something about RPC).
I made the gcc-cross-wrapper properly set the dynamic loader to programs.
After this, 'qemu-arm' can run the dynamically linked busybox cross built for armv5tel--linux-gnueabi.
svn path=/nixpkgs/trunk/; revision=20514