CMake - how to add library to build?

All, How do I add a library to a build in TDE? For some reason, the tdegraphics cmake setup does not include libXext. I have patched Makefile.am with -lXext and it is not seen by cmake or used for the build?? (Eg. I patched ksnapshot Makefile.am as follows): ksnapshot_LDADD = $(LIB_TDEPRINT) -lXext However, the ksnapshot link still fails: /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 I have looked at ConfigureChecks.cmake and all it includes is: check_include_file( X11/extensions/shape.h HAVE_X11_EXTENSIONS_SHAPE_H ) Can I tell cmake to include the library here? Or should the library inclusion go elsewhere? If so where? Is there a link to the cmake functions available in a TDE build? That would be very helpful to help packages not familiar with cmake held debug, etc.. I have found tde_add_library, but I don't know if that can be used to add an existing system library or if that is just to tell cmake to build and link the library?? Also, there are several forms: tde_add_library( kfaximage STATIC_PIC AUTOMOC tde_add_library( kfaximage SHARED AUTOMOC tde_add_library( ksvg SHARED If I can add libXext with tde_add_library would it be SHARED, STATIC_PIC and with or without AUTOMOC? I'm also not convinced that the problem isn't with cmake not concatenating or forming the link string properly after the problem encountered with libkscan. Below in the full error, there are man files just listed without any -l or -L preceding them. Is this correct? The full error I get with the tdegraphics/ksnapshot build is: [ 66%] 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=i686 -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=i686 -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 make[2]: *** [ksnapshot/ksnapshot] Error 1 make[2]: Leaving directory `/build/src/build' make[1]: *** [ksnapshot/CMakeFiles/ksnapshot.dir/all] Error 2 make[1]: Leaving directory `/build/src/build' make: *** [all] Error 2 Thanks for any help you can offer. -- David C. Rankin, J.D.,P.E.