[CMake] Fortran dependency fixes

[Arjen Markus]

Myers, Gary wrote:

> I have been using the Fortran dependency generator named makedepf90 
> (Erik Edelmann - 2.8.8) for years now.  Recently, we have encountered 
> a bug in this application (infinite loop within the parser).  I 
> noticed that Fortran dependencies are generated in cmake with the use 
> of an adaptation of makedepf90. Furthermore, I noticed that there 
> seems to be a patch in cmake indicating that the infinite loop problem 
> has been fixed. 
>  
> My problem is that there are significant differences between the 
> adaptation of makedepf90 in cmake from the original open source 
> (makedepf90 version 2.8.8) for me to back out the fix.  One solution 
> would be to just move over to the use of cmake, but this will not 
> happen within our established processes.  Is there a Fortran 
> dependencies guru who can explain the recent changes to the makedepf90 
> (lex/yacc) which enhanced the support of the Fortran dependencies in 
> cmake?

I do not know what the changes in the code actually are, but one major 
problem was that using the
word "use" in comments caused a false dependency. I do not know about 
infinite loops though.

Regards,

Arjen
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