[CMake] Fortran

[Brad King]

Bill Hoffman wrote:
> Maik Beckmann wrote:
>> Hello CMake people
>>
>> I pushed myself during the last weekends to get more familiar with
>> CMakes codebase.  Not for fun only ;), but make me smart enough to
>> sketch an approach for handling fortrans module dependencies.
>>
>> Bill, Brad, Alex ... it would be very nice if you're take a look at
>>  -
>> http://www.cmake.org/Wiki/CMake_Fortran_Issues#Introduction_to_the_problem
>>
>>  - http://www.cmake.org/Wiki/CMake_Fortran_Issues#Abstract_solution
>>  - http://www.cmake.org/Wiki/CMake_Fortran_Issues#Concrete_solution
>>
>> I did some wild proof of concept coding, but its not ready be shown so
>> far. (see the class definitions at
>> http://www.cmake.org/Wiki/CMake_Fortran_Issues#Concrete_solution)
>>
>> Howevery, the process of
>>  - parsing sources and make the information persistent
>>     -> -E fortran_module_scan
>>  - reload the information and generate depend.make
>>     -> -E cmake_depends using the persistent information
>> works for a simple exe-target with an arbitrary number of sources
>> involving modules.  The next thing is to handle modules provided by
>> another target in the sourcetree.
>>
>> For convenience I'm temporary using boost.serialization for the
>> persistent part. If the hole thing is in shape I will work cmakeish
>> solution.
>>
>> The hardest thing for me is to decide how to alter the way Makefile(2)
>> is generated i.e. where to trigger the module extraction.  Some advice
>> on this would be very helpfull.
>>
>> I will do best to apply your advises. ASAP I will provide a patch to
>> make this issue less abstract. 
> 
> Brad is actually working on fortran support right now.

This is correct.  I'll add some comments to the wiki.

-Brad