It is failing to build when passing -DKWIN_PLASMA_ACTIVE=true as build argument, even without patches applied. 

make -f kwin/effects/CMakeFiles/kwin4_effect_builtins.dir/build.make kwin/effects/CMakeFiles/kwin4_effect_builtins.dir/build
make[2]: Entering directory `/home/rodrigo/devel/sources/kde/kde-workspace/ubuntu/new/kde-workspace-4.8.2a/debian/build-kwin-active'
/usr/bin/cmake -E cmake_progress_report /home/rodrigo/devel/sources/kde/kde-workspace/ubuntu/new/kde-workspace-4.8.2a/debian/build-kwin-active/CMakeFiles 
[ 80%] Building CXX object kwin/effects/CMakeFiles/kwin4_effect_builtins.dir/screenshot/screenshot.o
cd kwin/effects && /usr/lib/icecc/bin/c++   -DMAKE_KWIN4_EFFECT_BUILTINS_LIB -D_BSD_SOURCE -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -DQT_NO_STL -DQT_NO_CAST_TO_ASCII -D_REENTRANT -DKDE_DEPRECATED_WARNINGS -DKDE4_CMAKE_TOPLEVEL_DIR_LENGTH=56 -DHAVE_CONFIG_H=1 -DQT_USE_FAST_CONCATENATION -DQT_USE_FAST_OPERATOR_PLUS -DDISABLE_NEPOMUK_LEGACY -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security  -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wformat-security -fno-exceptions -DQT_NO_EXCEPTIONS -fno-check-new -fno-common -Woverloaded-virtual -fno-threadsafe-statics -fvisibility=hidden -Werror=return-type -fvisibility-inlines-hidden -DNDEBUG -DQT_NO_DEBUG -fPIC -I. -I../../../../kwin/effects -I../../../../libs/kworkspace -I../../../../libs/kephal -I../../../../kwin/tabbox -I../../../../kwin/libkdecorations -I../../../../kwin/libkwineffects -I.. -I../libkwineffects -I../../../.. -I../.. -I../../../../libs -I/usr/include/KDE -I/usr/include/qt4/phonon -I/usr/include/qt4/QtXmlPatterns -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtWebKit -I/usr/include/qt4/QtUiTools -I/usr/include/qt4/QtTest -I/usr/include/qt4/QtSvg -I/usr/include/qt4/QtSql -I/usr/include/qt4/QtScriptTools -I/usr/include/qt4/QtScript -I/usr/include/qt4/QtOpenGL -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtHelp -I/usr/include/qt4/QtDesigner -I/usr/include/qt4/QtDeclarative -I/usr/include/qt4/QtDBus -I/usr/include/qt4/Qt3Support -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -I/usr/include/qt4/Qt -I/usr/share/qt4/mkspecs/default -I/usr/include/qt4    -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DKWIN_HAVE_OPENGL -o CMakeFiles/kwin4_effect_builtins.dir/screenshot/screenshot.o -c ../../../../kwin/effects/screenshot/screenshot.cpp
../../../../kwin/effects/screenshot/screenshot.cpp: In member function ‘virtual void KWin::ScreenShotEffect::postPaintScreen()’:
../../../../kwin/effects/screenshot/screenshot.cpp:130:41: error: ‘setXRenderOffscreen’ was not declared in this scope
../../../../kwin/effects/screenshot/screenshot.cpp:132:44: error: ‘xRenderOffscreenTarget’ was not declared in this scope
../../../../kwin/effects/screenshot/screenshot.cpp: In member function ‘QString KWin::ScreenShotEffect::blitScreenshot(const QRect&)’:
../../../../kwin/effects/screenshot/screenshot.cpp:223:37: error: ‘PictOpSrc’ was not declared in this scope
../../../../kwin/effects/screenshot/screenshot.cpp:224:112: error: ‘XRenderComposite’ was not declared in this scope
make[2]: *** [kwin/effects/CMakeFiles/kwin4_effect_builtins.dir/screenshot/screenshot.o] Error 1
make[2]: Leaving directory `/home/rodrigo/devel/sources/kde/kde-workspace/ubuntu/new/kde-workspace-4.8.2a/debian/build-kwin-active'
make[1]: *** [kwin/effects/CMakeFiles/kwin4_effect_builtins.dir/all] Error 2
make[1]: Leaving directory `/home/rodrigo/devel/sources/kde/kde-workspace/ubuntu/new/kde-workspace-4.8.2a/debian/build-kwin-active'
make: *** [all] Error 2