[Solved] Problem linking CEGUISampleFramework (boost/OGRE)

[pav]

I'm getting the following error when building from Mercurial.

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[ 67%] Linking CXX executable ../bin/CEGUISampleFramework
/usr/bin/ld: CMakeFiles/CEGUISampleFramework.dir/src/SamplesFrameworkBase.cpp.o: undefined reference to symbol '_ZN5boost6system15system_categoryEv'
/usr/bin/ld: note: '_ZN5boost6system15system_categoryEv' is defined in DSO /usr/lib/libboost_system.so.1.50.0 so try adding it to the linker command line
/usr/lib/libboost_system.so.1.50.0: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
make[2]: *** [bin/CEGUISampleFramework] Error 1
make[1]: *** [samples_framework/CMakeFiles/CEGUISampleFramework.dir/all] Error 2


I'm using Archlinux. Here's two relevant topics: OGRE forums, Arch forums.
Question: Is this a problem with boost, OGRE, CEGUI or Archlinux? (yes, I'm a noob)

[Kulik]

This is a change in boost that they made in 1.50 release AFAIK. You have to link to boost_system now.

There is a more elaborate thread about this on the Ogre forums and elsewhere if you are interested in the "why"

[pav]

This is a change in boost that they made in 1.50 release AFAIK. You have to link to boost_system now.

So it's CEGUI's build script that has to be updated, right? Or Ogre's? (aka "How to fix without studying for 2 days and nights")

[Kulik]

CEGUI Ogre Renderer has to link to boost_system in this instance, so CEGUI's. However we refuse to introduce these hacks in our build systems because it's not us making a mistake We will have to figure out some clean solution. For the moment you can just adjust the flags to link to boost_system.

EDIT: Not CEGUIBase, CEGUIOgreRenderer!

[pav]

Thanks, I had to change the last line of "samples_framework/CMakeLists.txt" from:

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cegui_target_link_libraries(${CEGUI_TARGET_NAME} ${CEGUI_BASE_LIBNAME})

to

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cegui_target_link_libraries(${CEGUI_TARGET_NAME} ${CEGUI_BASE_LIBNAME} boost_system)