ANN: Power patches updated for Lua 5.3

[Reuben Thomas <rrt@...>]

I'm happy to announce that I've updated the two power patches I maintain for Lua 5.3, specifically, the improved signal handling patch (requires POSIX sigaction interface) and the distribution-friendly default search paths patch.

Find them in the new Lua 5.3 section at:

http://lua-users.org/wiki/LuaPowerPatches

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