diff --git a/CMakeLists.txt b/CMakeLists.txt
index e072427e..4221b29f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,17 +4,26 @@ cmake_minimum_required(VERSION 2.4.5)
 
 option(BUILD_TESTS "Create test" ON)
 
-set(LIB_SUFFIX "" CACHE STRING "Define suffix of directory name (32/64)" )
-
-set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}" CACHE STRING "Directory where lib will install")
-
-set(PKGCONFIG_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}/pkgconfig/" CACHE STRING "Base directory for pkgconfig files")
-
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules" )
 
-find_package(Qt4 REQUIRED)
-# properly set up compile flags (QT_DEBUG/QT_NO_DEBUG, ...)
-include(${QT_USE_FILE})
+find_package(Qt5Core QUIET)
+if (Qt5Core_FOUND)
+  message(STATUS "Building with Qt5 support")
+  find_package(ECM 0.0.6 REQUIRED NO_MODULE)
+  set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_MODULE_PATH})
+  find_package(Qt5Transitional REQUIRED Core Network)
+  include(GNUInstallDirs)
+  set(LIB_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}")
+else()
+  set(QT_MIN_VERSION "4.7.0")
+  find_package(Qt4 REQUIRED)
+  # properly set up compile flags (QT_DEBUG/QT_NO_DEBUG, ...)
+  include(${QT_USE_FILE})
+  set(LIB_SUFFIX "" CACHE STRING "Define suffix of directory name (32/64)" )
+  set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}" CACHE STRING "Directory where lib will install")
+endif()
+
+set(PKGCONFIG_INSTALL_PREFIX "${LIB_INSTALL_DIR}/pkgconfig/" CACHE STRING "Base directory for pkgconfig files")
 
 set(QCA_LIB_MAJOR_VERSION "2")
 set(QCA_LIB_MINOR_VERSION "0")
@@ -148,7 +157,7 @@ add_subdirectory(src)
 add_subdirectory(tools)
 add_subdirectory(plugins)
 
-if(BUILD_TESTS)
+if(BUILD_TESTS AND NOT Qt5Core_FOUND)
   enable_testing()
   add_subdirectory(unittest)
   add_subdirectory(examples)
diff --git a/cmake/modules/QcaMacro.cmake b/cmake/modules/QcaMacro.cmake
index 1c6a37f2..ec49bf2c 100644
--- a/cmake/modules/QcaMacro.cmake
+++ b/cmake/modules/QcaMacro.cmake
@@ -1,4 +1,16 @@
 
+IF (Qt5Core_FOUND)
+  # FindQt4.cmake wasn't used, so define it here
+  MACRO (QT4_GET_MOC_INC_DIRS _moc_INC_DIRS)
+     SET(${_moc_INC_DIRS})
+     GET_DIRECTORY_PROPERTY(_inc_DIRS INCLUDE_DIRECTORIES)
+
+     FOREACH(_current ${_inc_DIRS})
+        SET(${_moc_INC_DIRS} ${${_moc_INC_DIRS}} "-I" ${_current})
+     ENDFOREACH(_current ${_inc_DIRS})
+  ENDMACRO(QT4_GET_MOC_INC_DIRS)
+ENDIF()
+
 MACRO(MY_AUTOMOC _srcsList)
   QT4_GET_MOC_INC_DIRS(_moc_INCS)
   FOREACH (_current_FILE ${${_srcsList}})
diff --git a/src/support/synchronizer.cpp b/src/support/synchronizer.cpp
index 7c48db6c..458b2f49 100644
--- a/src/support/synchronizer.cpp
+++ b/src/support/synchronizer.cpp
@@ -258,7 +258,11 @@ private:
 			int id = timers[n].id;
 			for(int i = 0; i < edtimers.count(); ++i)
 			{
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+				if(edtimers[i].timerId == id)
+#else
 				if(edtimers[i].first == id)
+#endif
 				{
 					found = true;
 					break;
@@ -278,7 +282,11 @@ private:
 		// added?
 		for(int n = 0; n < edtimers.count(); ++n)
 		{
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+			int id = edtimers[n].timerId;
+#else
 			int id = edtimers[n].first;
+#endif
 			bool found = false;
 			for(int i = 0; i < timers.count(); ++i)
 			{
@@ -293,7 +301,11 @@ private:
 			{
 				TimerInfo info;
 				info.id = id;
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+				info.interval = edtimers[n].interval;
+#else
 				info.interval = edtimers[n].second;
+#endif
 				info.time.start();
 				timers += info;
 #ifdef TIMERFIXER_DEBUG
diff --git a/src/support/syncthread.cpp b/src/support/syncthread.cpp
index a885fb0f..f534cf9d 100644
--- a/src/support/syncthread.cpp
+++ b/src/support/syncthread.cpp
@@ -32,7 +32,11 @@ QByteArray methodReturnType(const QMetaObject *obj, const QByteArray &method, co
 	for(int n = 0; n < obj->methodCount(); ++n)
 	{
 		QMetaMethod m = obj->method(n);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+		QByteArray sig = m.methodSignature();
+#else
 		QByteArray sig = m.signature();
+#endif
 		int offset = sig.indexOf('(');
 		if(offset == -1)
 			continue;