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The new linker coming with Ubuntu Oneiric is less tolerant regarding the order of linker flags than previous versions.

A quick and dirty way to have ar_pose compile & link is to run this command in the ar_pose directory:

sed '/^#rosbuild_gensrv\(\)/a set\(CMAKE_EXE_LINKER_FLAGS -Wl,--no-as-needed\)' -i CMakeLists.txt

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