[MOAB-dev] Building MOAB-based applications

[Tim Tautges]

Jason Kraftcheck wrote:
> Tim Tautges wrote:
>> As we approach a MOAB release, I think we need to clean this up some. 
>> In particular, it seems like the make variables that used to be defined
>> in moab.make and/or iMesh-Defs.inc have drifted some.  The general
>> overall goal should be to make simple things easy, without making more
>> complex things impossible.  To me, that means providing make variables
>> for compilers used by MOAB, and for libraries needed by applications
>> compiling against MOAB and iMesh. 
> 
> It is rather complicated to extract some of the variables used by libtool.
> Particularly with libtool 2.x, for which the actual libtool script isn't
> generated until after the configure script completes.  We'd probably end up
> re-writing a lot of the libtool configure functionality to correctly
> determine things like the equivalent of the -R link flag.
> 

The -R stuff I think we could live without, I'm talking more about what we used to do with gathering up libs needed to 
link to MOAB/CGM with any linker, e.g. the libs implied by linking with g++.  The intent of doing that was to take away 
another of the requirements for linking apps against our libs.  I think some of that is still there in our makefile 
support files, but I don't think it's consistent.  Although, maybe that's just needed in the iXxx-Defs.inc, since 
MOAB/CGM can't be used directly from C/Fortran?

>> I think we should also consider
>> installing somewhere the options used to configure MOAB, if they aren't
>> already (I can't remember seeing them anywhere). 
> 
> These are available in the build directory with './config.status --version'.
>  Depending on the format in which you want them in the installed directory,
> we could do something as simple as
>   './config.status --version > ${DISTDIR}${libdir}/moab.config'
> 

That sounds like a good solution.  Please make it so.

- tim

> - jason
> 

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              Tim Tautges            Argonne National Laboratory
          (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
          phone: (608) 263-8485      1500 Engineering Dr.
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