Re: Lua without stdio?

[Enrico Colombini <erix@...>]

Roberto Ierusalimschy wrote:
> Can't you use the relevant functions as macros? I guess some of these
> changes can be done through luaconf.h, with code like this:
>
>   #if defined(LUA_LIB)
>   #define fputs(s,f)	myownfputs(s,f)
>   #define fopen(f,o)	luaL_error(L, "file operations not available")
>   ...
>   #endif

I could... if they weren't already defined (and broken) in my system. I 
guess I'd get into linker trouble.
Besides, some parts of stdio are working (e.g. sprintf); it's those 
actually related to the filesystem that aren't: there is a proprietary, 
incompatible filesystem.

I acknowledge that my case is probably not very common, so usually your 
solution should work fine. Nethertheless, being able to compile Lua 
sources on any systems having stdio but not a filesystem could be 
useful. Many small embedded system libraries offer a reduced stdio that 
makes the #define trick... well, tricky :-)

  Enrico