I'm new to this forum, but I've seen it a few times while trying to search for a solution to this problem. I'm trying to generate KML files to use in Google Earth using a C++ API library I found for Ubuntu (libkml-dev_1.2.0-1ubuntu6_amd64). I installed the package using the command sudo apt-get install libkml-dev, came back successful. Afterwards, I used the command line terminal to navigate to the examples folder to try and execute the program 'helloworld.cc' with the command g++ helloworld.cc -o helloworld, but then got a slew of errors (mainly claiming that kmldom is an undefined reference). Sorry, I wanted to attach the text file, but don't know how so I included a sample of the error below. I've searched high and low all week, made sure the header files were indeed included in the download, and even contacted the Google Earth developers about the problem (and they responded that they have nothing to do with this and to redirect all questions regarding this issue to StackOverflow).
Does anyone know what is causing this problem(s) and what I can do to resolve this so I can move on please?
/tmp/cc5u2JyV.o: In function HelloKml(bool)': helloworld.cc:(.text+0x17): undefined reference to kmldom::KmlFactory::GetFactory()'
helloworld.cc:(.text+0x27): undefined reference to kmldom::KmlFactory::CreateCoordinates() const' helloworld.cc:(.text+0x328): undefined reference to kmldom::AsPoint(boost::intrusive_ptrkmldom::Element)'
/tmp/cc5u2JyV.o: In function boost::intrusive_ptr<kmldom::Coordinates>::intrusive_ptr(kmldom::Coordinates*, bool)': helloworld.cc:(.text._ZN5boost13intrusive_ptrIN6kmldom11CoordinatesEEC2EPS2_b[_ZN5boost13intrusive_ptrIN6kmldom11CoordinatesEEC5EPS2_b]+0x3d): undefined reference to kmlbase::intrusive_ptr_add_ref(kmlbase::Referent*)'
/tmp/cc5u2JyV.o: In function boost::intrusive_ptr<kmldom::Coordinates>::~intrusive_ptr()': helloworld.cc:(.text._ZN5boost13intrusive_ptrIN6kmldom11CoordinatesEED2Ev[_ZN5boost13intrusive_ptrIN6kmldom11CoordinatesEED5Ev]+0x23): undefined reference to kmlbase::intrusive_ptr_release(kmlbase::Referent*)'
/tmp/cc5u2JyV.o: In function boost::intrusive_ptr<kmldom::Geometry>::intrusive_ptr(boost::intrusive_ptr<kmldom::Geometry> const&)': helloworld.cc:(.text._ZN5boost13intrusive_ptrIN6kmldom8GeometryEEC2ERKS3_[_ZN5boost13intrusive_ptrIN6kmldom8GeometryEEC5ERKS3_]+0x35): undefined reference to kmlbase::intrusive_ptr_add_ref(kmlbase::Referent*)'
collect2: ld returned 1 exit status
When you compile application that uses library, you need to link it when your application compiles. So, try using this parameters:
To specify a directory to search for your libs, use -L:
-L/data[...]/lib
To specify the actual library name, use -l:
-labc (links abc.a or abc.so)
To specify a directory to search for include files, use -I:
-I/data[...]/lib