[Lemon-devel] Issues while building conda-forge package

[Francesco Biscani]

Hello,

I am writing here as I was unable to get an account on the trac website.
Apologies if this is the wrong list!

I am trying to create a conda-forge package for lemon, see here:

https://github.com/conda-forge/staged-recipes/pull/2964

In doing so, I ran in a couple of small issues. The first one is that the
Lemon build system tries to install, on windows, the glpk dlls, but on
conda we have a glpk package already available for windows, and thus this
step is not necessary. I have hence commented out the installation step of
glpk with this patch:

https://github.com/bluescarni/staged-recipes/blob/ba79a8432358f37b08d7a58ee31e946c94ba4ea5/recipes/lemon/glpk_win.diff

And lemon seems to build fine on windows linking to the glpk libs provided
by conda.

The second issue is that the lp_test is currently not building, at least
with the config options we have enabled for the conda package. The
compilation error is:

In file included from
/home/bluescarni/temp/lemon-1.3.1/test/lp_test.cc:43:0:
/home/bluescarni/temp/lemon-1.3.1/lemon/lp.h:89:11: error: ‘CbcMip’ does
not name a type
   typedef CbcMip Mip;

We have worked around this issue by not building this test, but I am not
completely sure if this is a symptom of a deeper problem?

Thanks for the help,

  Francesco.
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