Well the quick answer is this, the compiler is looking for 32bit libraries/headers which are not available on tinycorepure64.
But it looks like this system is running 32bit userspace apps with a 64bit kernel. So if the app you're attempting to compile is destined for a 32bit system then compile on a pure 32bit system first.
I believe your build environment must be either x86 or x86_64, after your app is compiled you can then boot to the desired configuration and run your app
There's probably a better answer coming, but that should put you on the right track