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> I am not sure where the file 'compat', for use as a prelude with Lua
> 5.0(w0) to give compatibility with Lua 4.0, came from, but am I right in
> thinking that line 36 (in definition of "do_" ) should read
>      local a,b = pcall(f,nil)
> and not
>      local a,b = pcall(nil,f)

Yes, quite right. (Actually, the line is "local a,b = pcall(f)",
very close to your correction.) I'm afraid we put an old version of
compat.lua in the distribution :-(

-- Roberto