bug#17056: dfa.c patch for systems with no locale support

[Paul Eggert]

Aharon Robbins wrote:

> See the original report below

I downloaded the DJGPP sources.  LC_ALL is defined unless one compiles 
as a freestanding environment, in which case neither LC_ALL nor 
setlocale are declared.  So my guess is that your correspondent is using 
a freestanding environment somehow, and the patch that I suggested 
should work.  It's better to avoid #ifdefs inside functions so I 
installed this into the grep master (see attached) and am marking this 
as done; we can always resurrect it if my guess is wrong.

0001-dfa-port-to-freestanding-DJGPP-Bug-17056.patch
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