[SCIP] Building GCG after building SCIP with CMake

[Matthias Walter]

Dear Michael,

as far as I can tell, GCG shipped with previous releases can only be 
built when SCIP is also built using the Makefile (so without cmake). 
This will change with the next release (coming soon), in which GCG can 
be built with cmake, too.

Until then, the following workaround worked for me:

1. Compile gcg with `make SHARED=true`.
2. As long as this triggers any errors on missing SCIP-related shared 
libraries (such as libscip, libtpi*, liblpi*, libobjscip...), created 
the desired ones (for me it was looking in scip/lib/shared/ for them) as 
symlinks to the cmake-built shared library libscip.so.

This is really a hack, since the linker for GCG will link to libscip.so 
several times, but it seems to be clever enough to figure out the 
duplicates.

Sorry for the inconvenience, but I guess this will be better with the 
upcoming release!

Best,
Matthias

On 10.06.2018 00:06, Michael Gough wrote:
> Hello all,
>
> I am trying to build GCG. I build SCIP with CMake and it produced 
> sharable libraries. Now GCG make is looking for static libraries.
>
> Can anyone tell me their way of building SCIP with GCG?
>
> Michael Gough
>
>
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-- 
Dr. Matthias Walter
RWTH Aachen University
Chair of Operations Research
Kackertstraße 7, B243
52072 Aachen
Phone: +49 241 80 93390
E-Mail:walter at or.rwth-aachen.de

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