[CMake] Interference between MSVC and g95

[Brad King]

Arjen Markus wrote:
> It means that a combination of MSVC and g95 in one project is
> impossible.

I think the problem is that the platform files for GNU and MSVC tools
are both getting loaded but they have been written assuming they are
always separate (which is the case in C-and C++-only projects).  Please
send me a tarball containing the entire build tree of your toy project
that reproduces the problem.

Thanks,
-Brad