This (v-2.0.3) of LuaJit is still generating Rpi compatible code (ARMv5-VFP).
Two articles This article (old, from LuaJit-2.0.0-Beta era):
http://cellux.github.io/articles/int...luajit-part-1/
Just use BR 2014.05 rather than the BR 2012.11.1 mentioned in the article.