Compiling GCO about gco_python HOT 6 CLOSED

sorry, I was a bit lazy there. Maybe I should just do that now.
There are some comments in my blog.

For example this should do:
``
gcc -fPIC -c GCoptimization.cpp LinkedBlockList.cpp graph.cpp maxflow.cpp

g++ -shared GCoptimization.o maxflow.o .o LinkedBlockList.o graph.o -o gco.so
``

There is also a CMakeLists.txt in my blog, but It didn't get around to add it.

from gco_python.

I just uploaded a somewhat better Makefile that does the downloading and compiling of gco. Feedback welcome.

from gco_python.

Thanks for that, but I'm still having problems. I'm thinking it might be something to do with my gcc version. Out of interest, what version of gcc works for you? I'm using Ubuntu/Linaro 4.6.3-1ubuntu5

The main problems (other than a whole host of warnings) seem to be:

In file included from gco_src/GCoptimization.cpp:4:0:
gco_src/GCoptimization.h: At global scope:
gco_src/GCoptimization.h:389:16: error: ‘ptrdiff_t’ does not name a type
gco_src/GCoptimization.h:414:16: error: ‘ptrdiff_t’ does not name a type
gco_src/GCoptimization.cpp:31:23: warning: ‘GCO_CLOCKS_PER_SEC’ initialized and declared ‘extern’ [enabled by default]
gco_src/GCoptimization.cpp: In member function ‘GCoptimization::SiteID GCoptimization::GreedyIter<GCoptimization::DataCostFnSparse>::feasibleSites() const’:
gco_src/GCoptimization.cpp:555:73: error: no match for ‘operator-’ in ‘((const GCoptimization::GreedyIter<GCoptimization::DataCostFnSparse>*)this)->GCoptimization::GreedyIter<GCoptimization::DataCostFnSparse>::m_siteend - ((const GCoptimization::GreedyIter<GCoptimization::DataCostFnSparse>*)this)->GCoptimization::GreedyIter<GCoptimization::DataCostFnSparse>::m_site’
gco_src/GCoptimization.cpp: In member function ‘GCoptimization::EnergyTermType GCoptimization::DataCostFnSparse::search(GCoptimization::DataCostFnSparse::DataCostBucket&, GCoptimization::SiteID)’:
gco_src/GCoptimization.cpp:1823:19: error: ‘cLinearSearchSize’ was not declared in this scope
In file included from gco_src/GCoptimization.h:109:0,
                 from gco_src/GCoptimization.cpp:4:

Probably headers being included in the wrong place or something in the gco code. Compiling an academic's code can often be a fun process :)

cheers for your help!

Tom

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Ok, I think I have sorted it, I just had to add:

#include <stddef.h>

To GCOptimization.h

it might be worth adding a note about this? or patching the gco code after it is downloaded.

from gco_python.

I'm pleased to say that example.py runs fine, thank you very much for your fast help!

Time to go put this to use..

Tom

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@trsaunders Thanks for your feedback. I added a note to the Readme shortly before your post and also notified upstream. It should be fixed soon.
Have fun and let me know if you have any interesting results ;)
Andy

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