diff --git a/sources/CMakeLists.txt b/sources/CMakeLists.txt
index 514eb63..fad0b9a 100644
--- a/sources/CMakeLists.txt
+++ b/sources/CMakeLists.txt
@@ -21,13 +21,17 @@ message (STATUS "Project: ${PROJECT_NAME}")
 message (STATUS "Version: ${PROJECT_VERSION}")
 message (STATUS "Build date: ${CURRENT_DATE}")
 
+option (BUILD_KDE4 "Build on KDE4" OFF)
+
 # flags
 if (CMAKE_COMPILER_IS_GNUCXX)
-    set (CMAKE_CXX_FLAGS "-Wall -Wno-cpp -std=c++11")
-    set (CMAKE_CXX_FLAGS_DEBUG "-g -O0")
-    set (CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG")
+  set (CMAKE_CXX_FLAGS "-Wall -Wno-cpp -std=c++11")
+  set (CMAKE_CXX_FLAGS_DEBUG "-g -O0")
+  set (CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG")
+  # avoid newer gcc warnings
+  add_definitions (-D_DEFAULT_SOURCE)
 else ()
-    message (STATUS "Unknown compiler")
+  message (STATUS "Unknown compiler")
 endif ()
 
 configure_file (${CMAKE_SOURCE_DIR}/version.h.in ${CMAKE_CURRENT_BINARY_DIR}/version.h)
diff --git a/sources/ext-sysmon/CMakeLists.txt b/sources/ext-sysmon/CMakeLists.txt
index 7867ba5..43171a4 100644
--- a/sources/ext-sysmon/CMakeLists.txt
+++ b/sources/ext-sysmon/CMakeLists.txt
@@ -4,16 +4,38 @@ set (PLUGIN_NAME ${SUBPROJECT})
 message (STATUS "Subproject ${SUBPROJECT}")
 
 # find required libaries
-find_package (KDE4 REQUIRED)
-include (KDE4Defaults)
+if (BUILD_KDE4)
+  find_package (KDE4 REQUIRED)
+  include (KDE4Defaults)
+
+  add_definitions (${QT_DEFINITIONS} ${KDE4_DEFINITIONS})
+  set (KDE_INCLUDE ${KDE4_INCLUDES})
+else ()
+  find_package (Qt5 REQUIRED COMPONENTS Widgets)
+  find_package (ECM 0.0.11 REQUIRED NO_MODULE)
+  set (CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
+  find_package(KF5 REQUIRED COMPONENTS Plasma Service)
+
+  include (KDEInstallDirs)
+  include (KDECMakeSettings)
+  include (KDECompilerSettings)
+
+  add_definitions (${Qt5Core_DEFINITIONS} ${Qt5Widgets_DEFINITIONS})
+  set (Qt_INCLUDE ${Qt5Core_INCLUDE_DIRS}
+                  ${Qt5Widgets_INCLUDE_DIRS})
+  set (KDE_INCLUDE ${ConfigCore_INCLUDE_DIR}
+                  ${CoreAddons_INCLUDE_DIR}
+                  ${Plasma_INCLUDE_DIR}
+                  ${Service_INCLUDE_DIR})
+endif ()
 
-add_definitions (${QT_DEFINITIONS} ${KDE4_DEFINITIONS})
 include_directories (${CMAKE_SOURCE_DIR}
                      ${CMAKE_BINARY_DIR}
-                     ${KDE4_INCLUDES}
                      ${CMAKE_CURRENT_BINARY_DIR}
                      ${CMAKE_CURRENT_BINARY_DIR}/../
-                     ${PROJECT_TRDPARTY_DIR})
+                     ${PROJECT_TRDPARTY_DIR}
+                     ${Qt_INCLUDE}
+                     ${KDE_INCLUDE})
 
 file (GLOB SUBPROJECT_DESKTOP_IN *.desktop)
 file (RELATIVE_PATH SUBPROJECT_DESKTOP ${CMAKE_SOURCE_DIR} ${SUBPROJECT_DESKTOP_IN})
@@ -27,13 +49,25 @@ set (SUBPROJECT_SCRIPTS ${CMAKE_CURRENT_SOURCE_DIR}/scripts)
 configure_file (${SUBPROJECT_DESKTOP_IN} ${CMAKE_CURRENT_BINARY_DIR}/${SUBPROJECT_DESKTOP})
 
 # make
-qt4_wrap_cpp (TASK_MOC_SOURCE ${TASK_HEADER})
-kde4_add_ui_files (SUBPROJECT_SOURCE ${SUBPROJECT_UI})
-kde4_add_plugin (${PLUGIN_NAME} ${SUBPROJECT_SOURCE} ${TASK_MOC_SOURCE})
-target_link_libraries (${PLUGIN_NAME} ${KDE4_KDECORE_LIBS} ${KDE4_PLASMA_LIBS})
+if (BUILD_KDE4)
+  qt4_wrap_cpp (TASK_MOC_SOURCE ${TASK_HEADER})
+  kde4_add_ui_files (SUBPROJECT_SOURCE ${SUBPROJECT_UI})
+  kde4_add_plugin (${PLUGIN_NAME} ${SUBPROJECT_SOURCE} ${TASK_MOC_SOURCE})
+  target_link_libraries (${PLUGIN_NAME} ${KDE4_KDECORE_LIBS} ${KDE4_PLASMA_LIBS})
+else ()
+  qt5_wrap_cpp (TASK_MOC_SOURCE ${TASK_HEADER})
+  qt5_wrap_ui (SUBPROJECT_UI_HEADER ${SUBPROJECT_UI})
+  add_library (${PLUGIN_NAME} MODULE ${SUBPROJECT_SOURCE} ${SUBPROJECT_UI_HEADER} ${TASK_MOC_SOURCE})
+  target_link_libraries (${PLUGIN_NAME} ${Plasma_LIBRARIES} ${Qt5Widgets_LIBRARIES})
+  kcoreaddons_desktop_to_json (${PLUGIN_NAME} ${CMAKE_CURRENT_BINARY_DIR}/${SUBPROJECT_DESKTOP})
+endif ()
 
 # install
-install (TARGETS ${PLUGIN_NAME} DESTINATION ${PLUGIN_INSTALL_DIR})
+if (BUILD_KDE4)
+  install (TARGETS ${PLUGIN_NAME} DESTINATION ${PLUGIN_INSTALL_DIR})
+else ()
+  install (TARGETS ${PLUGIN_NAME} DESTINATION ${PLUGIN_INSTALL_DIR}/plasma/dataengine)
+endif ()
 install (FILES ${CMAKE_CURRENT_BINARY_DIR}/${SUBPROJECT_DESKTOP} DESTINATION ${SERVICES_INSTALL_DIR})
 install (FILES ${SUBPROJECT_CONF} DESTINATION ${CONFIG_INSTALL_DIR})
-install (DIRECTORY ${SUBPROJECT_SCRIPTS} DESTINATION ${DATA_INSTALL_DIR}/${PLUGIN_NAME} USE_SOURCE_PERMISSIONS)
+install (DIRECTORY ${SUBPROJECT_SCRIPTS} DESTINATION ${DATA_INSTALL_DIR}/${PLUGIN_NAME})
diff --git a/sources/ext-sysmon/extsysmon.cpp b/sources/ext-sysmon/extsysmon.cpp
index 06ca695..1892b23 100644
--- a/sources/ext-sysmon/extsysmon.cpp
+++ b/sources/ext-sysmon/extsysmon.cpp
@@ -19,20 +19,27 @@
 #include "extsysmon.h"
 
 #include <Plasma/DataContainer>
-#include <KDE/KGlobal>
-#include <KDE/KStandardDirs>
-#include <KDE/KWindowSystem>
+#include <KWindowSystem>
+
 #include <QDebug>
 #include <QDir>
 #include <QFile>
 #include <QProcessEnvironment>
 #include <QRegExp>
 #include <QTextCodec>
-#include <QThread>
 
 #include <extscript.h>
 #include <pdebug/pdebug.h>
 #include <task/taskadds.h>
+#include <version.h>
+
+// KF5-KDE4 compability
+#ifdef BUILD_KDE4
+#include <KGlobal>
+#include <KStandardDirs>
+#else
+#include <QStandardPaths>
+#endif /* BUILD_KDE4 */
 
 
 ExtendedSysMon::ExtendedSysMon(QObject* parent, const QVariantList& args)
@@ -174,7 +181,7 @@ void ExtendedSysMon::readConfiguration()
     rawConfig[QString("PKGNULL")] = QString("0");
     rawConfig[QString("PLAYER")] = QString("mpris");
 
-    QString fileName = KGlobal::dirs()->findResource("config", "extsysmon.conf");
+    QString fileName = KGlobal::dirs()->findResource("config", "plasma-dataengine-extsysmon.conf");
     if (debug) qDebug() << PDEBUG << ":" << "Configuration file" << fileName;
     QFile configFile(fileName);
     if (!configFile.open(QIODevice::ReadOnly)) {
@@ -611,6 +618,10 @@ bool ExtendedSysMon::updateSourceEvent(const QString &source)
 }
 
 
+#ifdef BUILD_KDE4
 K_EXPORT_PLASMA_DATAENGINE(extsysmon, ExtendedSysMon)
+#else
+K_EXPORT_PLASMA_DATAENGINE_WITH_JSON(extsysmon, ExtendedSysMon, "plasma-dataengine-extsysmon.json")
+#endif /* BUILD_KDE4 */
 
 #include "extsysmon.moc"
diff --git a/sources/ext-sysmon/extsysmon.conf b/sources/ext-sysmon/plasma-dataengine-extsysmon.conf
similarity index 63%
rename from sources/ext-sysmon/extsysmon.conf
rename to sources/ext-sysmon/plasma-dataengine-extsysmon.conf
index 8b142b1..6f84816 100644
--- a/sources/ext-sysmon/extsysmon.conf
+++ b/sources/ext-sysmon/plasma-dataengine-extsysmon.conf
@@ -1,24 +1,16 @@
-# Configuration file for Extended Systemmonitor DataEngine
-# $kdehome/share/config/extsysmon.conf
-
+[Configuration]
 # ACPI devices
-#ACPIPATH=/sys/class/power_supply/
-
-# Set GPU device
+ACPIPATH=/sys/class/power_supply/
 # May be 'nvidia' (for nvidia), 'ati' (for ATI RADEON), 'disable' or 'auto'
-#GPUDEV=auto
-
+GPUDEV=auto
 # Set block device for hddtemp comma separated or use 'all' or 'disable'
-#HDDDEV=all
-
-# Set MPD settings
-#MPDADDRESS=localhost
-#MPDPORT=6600
-
+HDDDEV=all
+# mpd server settings
+MPDADDRESS=localhost
+MPDPORT=6600
 # MPRIS player name or 'auto'. In the most cases it should be a player name
-# DBus path is org.mpris.MediaPlayer2.amarok
-#MPRIS=auto
-
+## DBus path is org.mpris.MediaPlayer2.amarok
+MPRIS=auto
 # Package upgrade info
 ## from vicious
 ## Arch:        PKGCMD=pacman -Qu                       PKGNULL=0
@@ -27,10 +19,9 @@
 ## Fedora:      PKGCMD=yum list updates                 PKGNULL=3
 ## FreeBSD:     PKGCMD=pkg_version -I -l '<'            PKGNULL=0
 ## Mandriva:    PKGCMD=urpmq --auto-select              PKGNULL=0
-# Commands to run, comma separated
-#PKGCMD=pacman -Qu
-# Number of null lines for commands, comma separated
-#PKGNULL=0
-
+## Commands to run, comma separated
+PKGCMD=pacman -Qu
+## Number of null lines for commands, comma separated
+PKGNULL=0
 # Player name. Supported players are 'mpd', 'mpris'
-#PLAYER=mpris
+PLAYER=mpris
diff --git a/sources/version.h.in b/sources/version.h.in
index 4fc401c..143ca39 100644
--- a/sources/version.h.in
+++ b/sources/version.h.in
@@ -26,5 +26,6 @@
 // cmake properties
 #define CMAKE_BUILD_TYPE "@CMAKE_BUILD_TYPE@"
 #define CMAKE_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@"
+#cmakedefine BUILD_KDE4
 
 #endif /* VERSION_H */