Fix Makefile.in in data-directory

[Pedro Alves]

On Thursday 21 October 2010 01:10:14, Jie Zhang wrote:
> I don't think this is an issue. I think in the last more than 10 years, 
> no one did "make -j all install" since the same instance in 
> gdb/Makefile.in has been there since it was created. Actually if you do 
> that in current gdb, it will not install gdb at all. I usually issue
> 
> make -j4 all
> make install

FWIW, I got surprised before learning that "make -j4 install" misbehaves
like that.  I'd rather have it fixed.  It just sounds like a buglet people
got used to dealing with.

-- 
Pedro Alves