[CMake] CXX incorrectly includes CMakeFortranInformation.cmake for MinGW/MSYS/Wine

[Alan W. Irwin]

On 2010-04-05 00:40-0700 Alan W. Irwin wrote:

> On 2010-04-04 21:28-0400 John Drescher wrote:
>
[...]
>> I believe the
>> issue is caused by wine pulling in at least some of environment
>> variables from the linux system.
>
> That idea of something leaking through from Linux to Wine to disrupt CMake
> might be possible [...] I hope the CMake developers can come up with
> some ideas about this hypothesis once they pinpoint exactly where things
> start to go wrong from my --trace results for an extremely simple project.

Other clues I should have emphasized are that pure C and pure Fortran simple
cases have no language interference issues at all.  Also if you combine C
and Fortran but exclude C++ for PLplot builds and tests, there are no such
language interference issues, and the tests look like they are working fine.
So it appears that something is being done in the pure CXX case to trigger
the Fortran interference that is unique compared to the pure C and pure
Fortran cases.

Alan
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Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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Linux-powered Science
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