Comment 18 for bug 1073932

1) This is marked in Progress - that means it is in progress. No need to pressure us, it won't go faster.
2) Lua 5.2 is a very different beast than 5.1 - not even the Lua community suggest replacing your usage of 5.1 with 5.2, only new projects should use 5.2. The versions are not even compatible on a syntax level - even less on a binary level. MacPorts are wrong if they *replaced* 5.1 with 5.2. They should bundle both versions. Go, complain to them instead.
3) homebrew offers lua 5.1 - you could use that.
4) Or just do the trivial install yourself. wget http://www.lua.org/ftp/lua-5.1.4.tar.gz && tar xzvf lua-5.1.4.tar.gz && cd lua-5.1.4 && make macosx && sudo make install

We will eventually use Lua 5.2, but this will break safegame compatibility, so we step carefully.