*fix remaining build issues KDE4Support no longer needed.

CMakeLists.txt

@@ -23,7 +23,7 @@ find_package(KF5DocTools ${KF5_MIN_VERSION} REQUIRED )
 # I don't need warnings about wired things in comments.
 SET(CLANG_WARNING_FLAGS -Wno-comment)
 SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
-SET(KDiff3_LIBRARIES KF5::I18n KF5::CoreAddons KF5::IconThemes)
+SET(KDiff3_LIBRARIES ${Qt5PrintSupport_LIBRARIES} KF5::I18n KF5::CoreAddons KF5::IconThemes)
 SET(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} ${CLANG_WARNING_FLAGS}")
 SET(CMAKE_C_FLAGS  "${CMAKE_C_FLAGS} ${CLANG_WARNING_FLAGS}")
 

src/optiondialog.cpp

@@ -17,7 +17,7 @@
  *   Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA.
  *
  */
-
+#include <QApplication>
 #include <QCheckBox>
 #include <QComboBox>
 #include <QLabel>
@@ -36,15 +36,15 @@
 #include <QVBoxLayout>
 #include <QFontDatabase>
 
-#include <kapplication.h>
-#include <kcolorbutton.h>
-#include <kfontdialog.h> // For KFontChooser
-#include <kiconloader.h>
-#include <kconfig.h>
-#include <kmessagebox.h>
-#include <kmainwindow.h> //For ktoolbar.h
-#include <ktoolbar.h>
+#include <KColorButton>
+#include <KFontChooser>
+#include <KIconLoader>
+#include <KSharedConfig>
+#include <KMessageBox>
+#include <KMainWindow> //For ktoolbar.h
+#include <KToolBar>
 #include <KHelpClient>
+#include <KLocalizedString>
 #include <map>
 
 #include "optiondialog.h"