[ome-devel] Building OmeroCpp

[josh.moore at gmx.de]

James Perry writes:
 > Hi Josh,
 > 
 > > If you've followed what's on both:
 > >
 > >   https://trac.openmicroscopy.org.uk/omero/wiki/BlitzBuild
 > >   https://trac.openmicroscopy.org.uk/omero/wiki/OmeroContributing
 > >
 > > then you can get started via the top level ant build:
 > >
 > >   cd OMERO_HOME
 > >   ant build-cpp
 > 
 > Many thanks. I got the C++ libraries to build successfully.

Whew. Good to hear.

 > I'm now trying to compile the simple example from the OmeroCpp page on  
 > TRAC but running into a problem. I had to comment out the  
 > "omero.closeOnDestroy();" line as the compiler complained about it,  

A typo. I've updated the page, but the essential change is that
closeOnDestroy() should be called on the proxy returned from
createSession:

    omero::api::ServiceFactoryPrx sf = omero.createSession();
    sf->closeOnDestroy();

 > and reverse the order of the common and client libraries in the  
 > makefile to get rid of hundreds of linker errors due to client  
 > depending on lots of things from common. 

Hmmm...that's an interesting one. I've never had an issue with that,
nor could I reproduce it just now. You may have already sent it, but
would you mind telling us your OS info again along with your version
of make and your compiler.

 > I'm still getting one linker  
 > error:
 > 
 > g++ -o omerotest omerotest.o -L/home/digs/trunk/dist/lib  
 > -L/home/digs/Ice/lib -lIce -lIceUtil -lGlacier2 -lOMERO_client  
 > -lOMERO_common -lstdc++
 > /home/digs/trunk/dist/lib/libOMERO_client.a(ObjectFactoryRegistrar.o):  
 > In function `omero::ObjectFactory::create(std::basic_string<char,  
 > std::char_traits<char>, std::allocator<char> >  
 > const&)':ObjectFactoryRegistrar.cpp:(.text+0xd16f): undefined  
 > reference to `omero::model::CommentAnnotationI::CommentAnnotationI()'
 > collect2: ld returned 1 exit status
 > make: *** [omerotest] Error 1
 > 
 > Any ideas what might be causing it?

Yes. Unfortunately, I do. The autoconf configuration requires all new
code-generated objects to be added (redundantly).  CommentAnnotation
wasn't. The simplest fix for you to finish testing is to add
CommentAnnotation.cpp and CommentAnnotationI.cpp to your build:

$ cp ../../components/tools/OmeroCpp/src/slice_generated/omero/model/CommentAnnotation.cpp .
$ cp ../../components/tools/OmeroCpp/target/temp/omero/model/CommentAnnotationI.cpp .    

and change:

yourcode.o: yourcode.cpp  -->   %.o: %.cpp
yourcode: yourcode.o  --->  yourcode: yourcode.o CommentAnnotation.o CommentAnnotationI.o


Sorry about that. I'll remove the currently unused CommentAnnotation
for a later release.

 > Thanks,
 > James

Best wishes,
~Josh.