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> Hi Just a heads up as I havent seen any previous mention of this problem on the mailing list before. I started updating my project to switch from 5.1 to 5.2 but hit a pretty awkward showstopper problem. I use SWIG extensively to generate auto bindings. The SWIG auto generated code uses LUA_GLOBALSINDEX which no longer exists in 5.2. I found a recent Swig user post discussing the problem   It would be good if someone from the Lua team could confirm the best fix for this issue is to replace  the LUA_GLOBALS_INDEX line with  /* push the global table onto the stack */
> lua_getglobal(L,"_G") by "best" I mean a fix that works for both 5.1  & 5.2.  

I do not know Swig, so I cannot confirm whether the post suggestions are
"the best fix". But they seem sensible.

-- Roberto