[PATCH] Define __STDC__ as a macro rather than a builtin when possible (PR preprocessor/25717)

[Mark Mitchell]

Jakub Jelinek wrote:

> +	 value 0.  (b) and (c) is already checked in cpp_init_builtins. 

(b) and (c) *are* already checked.  (Number agreement.)

OK with that change.

Thanks,

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
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