Tim, all, I've run into more link problems in tdegraphics. This time I am fairly certain it is a gcc >= 4.6.2 problem. The error is: /usr/bin/ld: CMakeFiles/ksnapshot.dir/windowgrabber.cpp.o: undefined reference to symbol 'XShapeQueryExtension' /usr/bin/ld: note: 'XShapeQueryExtension' is defined in DSO /usr/lib/libXext.so.6 so try adding it to the linker command line This means I need to add '-lXext' to the LDADD lines for ksnapshot. But where in the CMake chain does this get added. I tried patching the makefile, but cmake ignores the patch, so it needs to go in a CMakeList file somewhere, but is that in tdegraphics or tdegraphics/ksnapshot? The changes needed are: -ksnapshot_LDADD = $(LIB_TDEPRINT) +ksnapshot_LDADD = $(LIB_TDEPRINT) -lXext The full error follows. Do we need to open bugs on the gcc linking issues when found? Full Error: [ 64%] Building CXX object ksnapshot/CMakeFiles/ksnapshot.dir/ksnapshotwidget.cpp.o cd /build/src/build/ksnapshot && /usr/bin/c++ -DHAVE_CONFIG_H -DKSNAPVERSION=\"0.7\" -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -D_FORTIFY_SOURCE=2 -DQT_NO_ASCII_CAST -DQT_CLEAN_NAMESPACE -DQT_NO_STL -DQT_NO_COMPAT -DQT_NO_TRANSLATION -DQT_THREAD_SUPPORT -D_REENTRANT -include tqt.h -I/build/src/build/ksnapshot -I/build/src/tdegraphics/ksnapshot -I/build/src/build -I/opt/trinity/include -I/opt/tqt3/include -I/opt/trinity/include/tqt -o CMakeFiles/ksnapshot.dir/ksnapshotwidget.cpp.o -c /build/src/build/ksnapshot/ksnapshotwidget.cpp Linking CXX executable ksnapshot cd /build/src/build/ksnapshot && /usr/bin/cmake -E cmake_link_script CMakeFiles/ksnapshot.dir/link.txt --verbose=1 /usr/bin/c++ -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -D_FORTIFY_SOURCE=2 -DQT_NO_ASCII_CAST -DQT_CLEAN_NAMESPACE -DQT_NO_STL -DQT_NO_COMPAT -DQT_NO_TRANSLATION -DQT_THREAD_SUPPORT -D_REENTRANT -include tqt.h -Wl,-O1,--sort-common,--as-needed,-z,relro,--hash-style=gnu CMakeFiles/ksnapshot.dir/ksnapshotiface_skel.cpp.o CMakeFiles/ksnapshot.dir/main.cpp.o CMakeFiles/ksnapshot.dir/ksnapshot.cpp.o CMakeFiles/ksnapshot.dir/regiongrabber.cpp.o CMakeFiles/ksnapshot.dir/windowgrabber.cpp.o CMakeFiles/ksnapshot.dir/ksnapshotwidget.cpp.o -o ksnapshot -rdynamic -L/opt/trinity/lib -L/opt/tqt3/lib /opt/trinity/lib/libtdeprint.so.4.2.0 /opt/trinity/lib/libkio.so.4.2.0 /opt/trinity/lib/libtdeui.so.4.2.0 -lfreetype -lfontconfig /opt/trinity/lib/libtdesu.so.4.2.0 -lutil /opt/trinity/lib/libkwalletclient.so.1.0.1 /opt/trinity/lib/libtdecore.so.4.2.0 /opt/trinity/lib/libDCOP.so.4.2.0 /opt/trinity/lib/libtdefx.so.4.2.0 -ltqt -ltqt-mt -lXrender -lX11 -lz -lidn -lXcomposite -lICE -lSM -Wl,-rpath,/opt/trinity/lib:/opt/tqt3/lib: /usr/bin/ld: CMakeFiles/ksnapshot.dir/windowgrabber.cpp.o: undefined reference to symbol 'XShapeQueryExtension' /usr/bin/ld: note: 'XShapeQueryExtension' is defined in DSO /usr/lib/libXext.so.6 so try adding it to the linker command line /usr/lib/libXext.so.6: could not read symbols: Invalid operation collect2: ld returned 1 exit status m -- David C. Rankin, J.D.,P.E.