I've embedded this into my cmakelists as in readme and I see LuaJIT files compiling and headers generating, but build of my project fails with luajit.h: No such file or directory and if I provide path to luajit.h myself, it complains with
error: implicit declaration of function 'luaL_newstate'; did you mean 'lua_newstate'? [-Wimplicit-function-declaration]. Am I doing something wrong?