Re: Trunk r117046 fails on systems with older automake

[Eli Zaretskii]

> From: Óscar Fuentes <address@hidden>
> Date: Wed, 07 May 2014 13:33:22 +0200
> 
> Eli Zaretskii <address@hidden> writes:
> 
> >> The build failed with
> >> 
> >> ../../emacs/lib/dup2.c:38:26: fatal error: msvc-inval.h: No such file or 
> >> directory
> >>  #  include "msvc-inval.h"
> >>                           ^
> >> compilation terminated.
> >
> > lib/dup2.c is not supposed to be compiled in the MinGW build.  Check
> > your config.log for the reasons it is.
> 
> The problem was that on MSYS2 (when started with the mingw_shell.bat
> script) MSYSTEM contains MINGW whereas the configure script tests for
> either MINGW32 or MINGW64.

Patches to accommodate MSYS2 are welcome.