bug#18359: Macro expansion failure [MSYS2-MinGW64]

[Eli Zaretskii]

> Date: Sun, 31 Aug 2014 23:40:21 +0200
> From: Angelo Graziosi <angelo.graziosi@alice.it>
> CC: 18359@debbugs.gnu.org
> 
> I have used the lightweight tree since there was the transition CVS --> 
> BZR, and it worked just fine on Cygwin and GNU/Linux. It is only on 
> MSYS2-MinGW64 that there were these issues..

You are encouraged to investigate the reasons for these issues, if you
have time.

TIA