Wine uses the wrong pkg-config for 32 bit builds

[Francois Gouget]

On Tue, 6 Jun 2017, Alexandre Julliard wrote:
[...]
> It seems to me that you'd want to do this only in the specific case that
> we force 32-bit, other cases should be handled by the normal --host
> mechanism.

Yes, that's another possible approach.
Note though that:

* The modified version of WINE_CHECK_HOST_TOOL() honors the --host 
  mechanism (now I fixed the bug).

* If one runs 'configure --enable-win64' on a 32 bit platform, one would 
  want to make sure to use x86_64-${host_os}-pkg-config rather than 
  plain pkg-config.
  That can be accomplished by adding another AC_CHECK_PROGS in the 
  relevant 'case $host' branch but it led me to think that maybe a more 
  general mechanism would be better.

As a side note WINE_CHECK_HOST_TOOL() is only used once; to check for 
pkg-config. I'm not sure of the implications.


-- 
Francois Gouget <fgouget at codeweavers.com>