Created attachment 374408 [details]
The proposed patch (patch of patch, not sure if that's handled correctly)

Description of problem:
In libsgmodel.so, there are undefined references to functions defined in libOsgParticle. The attached patch to SimGear-1.9.1-shared.patch prevents this, by adding -losgparticle to the linker flags.

Version-Release number of selected component (if applicable):
SimGear-1.9.1-8.fc12.i686

How reproducible:
This problem shows up when trying to compile fgrun 1.5.1 against the current simgear. The patch fixes this. 

Actual results:
g++ -DLOCALEDIR=\"/usr/local/share/locale\" -g -O2   -o fgrun  wizard.o wizard_funcs.o advanced.o advanced_funcs.o AirportBrowser.o AirportTable.o Fl_Table.o Fl_Table_Row.o Fl_OSG.o Fl_Heading_Dial.o main.o io.o fgfsrc.o logwin.o parkingloader.o settings.o util.o run_posix.o fgrun_pty.o -lsgmodel -lsgmath -lsgscreen -lsgprops -lsgxml -lsgmisc -lsgdebug -lsgstructure -lsgutil -lplibsg -lplibul -losgSim -losgViewer -losgGA -losgText -losgDB -losgUtil -losg -lOpenThreads -lfltk_gl -lpthread  -lfltk -lXft -lGL -lXmu -lXt -lSM -lICE -lXi -lXext -lX11  -lm -lz -lutil -losgFX
/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../libsgmodel.so: undefined reference to `osgParticle::ModularEmitter::ModularEmitter()'
/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../libsgmodel.so: undefined reference to `osgParticle::ParticleSystem::ParticleSystem()'
/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../libsgmodel.so: undefined reference to `osgParticle::ParticleSystemUpdater::ParticleSystemUpdater()'
/usr/lib/libsgenvironment-1.9.1.so: undefined reference to `osgParticle::PrecipitationEffect::rain(float)'
/usr/lib/libsgenvironment-1.9.1.so: undefined reference to `osgParticle::PrecipitationEffect::snow(float)'
/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../libsgmodel.so: undefined reference to `osgParticle::MultiSegmentPlacer::MultiSegmentPlacer()'
/usr/lib/libsgenvironment-1.9.1.so: undefined reference to `osgParticle::PrecipitationEffect::PrecipitationEffect()'
/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../libsgmodel.so: undefined reference to `osgParticle::ParticleSystem::setDefaultAttributes(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool, bool, int)'
/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../libsgmodel.so: undefined reference to `osgParticle::FluidProgram::FluidProgram()'
/usr/lib/gcc/i686-redhat-linux/4.4.2/../../../libsgmodel.so: undefined reference to `osgParticle::ConnectedParticleSystem::ConnectedParticleSystem()'
collect2: ld returned 1 exit status
make[2]: *** [fgrun] Error 1
make[2]: Leaving directory `/home/stefan/flightgear/native/fgrun-1.5.1/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/stefan/flightgear/native/fgrun-1.5.1/src'
make: *** [all-recursive] Error 1


Expected results:
This should just link

Additional info:
The attached patch works fine, I haven't found any regressions.