# sol2 3.5.0 documentation

## compatibility.hpp

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# compatibility.hpp

Lua 5.3/5.2 compatibility for Lua 5.1/LuaJIT

This is a detail header used to maintain compatability with the 5.2 and 5.3+ APIs. It contains code from the MIT-Licensed Lua code in some places and also from the lua-compat repository by KeplerProject.

It is not fully documented as this header’s only purpose is for internal use to make sure sol compiles across all platforms / distributions with no errors or missing Lua functionality. If you think there’s some compatibility features we are missing or if you are running into redefinition errors, please make an issue in the issue tracker.

If you have this already in your project or you have your own compatibility layer, then please `#define SOL_NO_COMPAT 1` before including `sol.hpp` or pass this flag on the command line to turn off the compatibility wrapper.

For the licenses, see here