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

[Alan W. Irwin]

On 2010-04-05 11:31-0400 Bill Hoffman wrote:

> Alan W. Irwin wrote:
>> 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.
>> 
>
> Have you run cmake --trace yet to figure out what is including what and 
> where?

Yes, as alluded to above
the complete result for cmake --trace --debug-output for
a CMakeLists.txt file consisting of just

project(test NONE)
enable_language(CXX)

was attached to my first post in this thread.  Part way through is starts
accessing CMakeFortranInformation.cmake which is the source of the trouble.

For your convenience I will attach that cmake output to this post as well.

Alan

__________________________
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).
__________________________

Linux-powered Science
__________________________
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