Re: avoid gcc 4.6.2 'may be used before set' warnings in dfa.c

[Paul Eggert]

On 02/15/2012 10:54 AM, Aharon Robbins wrote:
> -  int c, c1, c2;
> +  int c = 0, c1 = 0, c2 = 0;

Sorry, I don't see why this patch (and the other) is needed.
grep's copy of src/dfa.h says this:

extern void dfaerror (const char *) __attribute__ ((noreturn));

and all paths to the first use of c or wc lead
through either an initialization of them, or a call
to dfaerror.

Also, all def-use paths for c1, c2, wc1, and wc2
seem sound, at least in grep's copy of dfa.c, so why
do they need to be initialized?