-fzero-initialized-in-bss again

[Eric Botcazou]

> The intent is to be compatible with C and do the same thing the C front
> end would do with a decl in the same situation.  I find the the change in
> the C front end in this regard between 2.8.1 and the present confusing.

If that's the only intent, let's follow Geoff's suggestion and simply delete 
the line from ada/utils.c (or at least make -fno-common the default).  AFAIK 
the problem .common is aimed at solving in C doesn't exist in Ada.

-- 
Eric Botcazou