Travis: Add missing packages

.travis/linux..install.sh

@@ -2,11 +2,13 @@
 
 PACKAGES="cmake libsndfile-dev fftw3-dev libvorbis-dev libogg-dev libmp3lame-dev
 	libasound2-dev libjack-dev libsdl-dev libsamplerate0-dev libstk0-dev
-	libfluidsynth-dev portaudio19-dev wine-dev g++-multilib libfltk1.3-dev
+	libfluidsynth-dev portaudio19-dev g++-multilib libfltk1.3-dev
 	libgig-dev libsoundio-dev"
 
+VST_PACKAGES="wine-dev libqt5x11extras5-dev qtbase5-private-dev libxcb-util-dev libxcb-keysyms1-dev"
+
 # Help with unmet dependencies
-PACKAGES="$PACKAGES libjack0"
+PACKAGES="$PACKAGES $VST_PACKAGES libjack0"
 
 if [ $QT5 ]; then
 	PACKAGES="$PACKAGES qtbase5-dev qttools5-dev-tools qttools5-dev"

src/gui/CMakeLists.txt

@@ -91,7 +91,7 @@ SET(LMMS_SRCS
 	PARENT_SCOPE
 )
 
-IF(QT5)
+IF(QT5 AND LMMS_BUILD_LINUX)
     add_library(x11embedcontainer STATIC
         X11EmbedContainer
     )