October MinGW patches

[Stef Walter]

On 04.10.2014 22:42, Michael Cronenworth wrote:
> 0001: As previously discussed, rename DATADIR.

Thanks. Pushed to git master.

> 0002: New inclusion of setenv() needs a define test to use Win32
> equivalent function.

Could you create a setenv() workalike in compat.h and compat.c and check
the presense of setenv() in configure.ac? This would be similar to other
functions for which we do the same thing here.

Thanks

Stef