diff --git a/source/backend/native/Makefile b/source/backend/native/Makefile
index 3c42d7b86..5f1732ad1 100644
--- a/source/backend/native/Makefile
+++ b/source/backend/native/Makefile
@@ -11,7 +11,7 @@ include ../Makefile.mk
 BUILD_CXX_FLAGS += -I. -I../../libs/distrho -I../../widgets
 
 ifeq ($(HAVE_QT5),true)
-BUILD_CXX_FLAGS += $(shell pkg-config --cflags Qt5Core Qt5Widgets)
+BUILD_CXX_FLAGS += $(shell pkg-config --cflags Qt5Core Qt5Gui Qt5Widgets)
 else
 BUILD_CXX_FLAGS += $(shell pkg-config --cflags QtCore QtGui)
 endif
@@ -187,7 +187,7 @@ distrho-notes.cpp.o: distrho-notes.cpp notes/DistrhoPluginNotes.cpp notes/Distrh
 midi-file.cpp.o: midi-file.cpp
 	$(CXX) $< $(MF_CXX_FLAGS) -c -o $@
 
-zynaddsubfx.cpp.o: zynaddsubfx.cpp $(ZYN_UI_FILES_CPP)
+zynaddsubfx.cpp.o: zynaddsubfx.cpp $(ZYN_UI_FILES_H)
 	$(CXX) $< $(ZYN_CXX_FLAGS) -c -o $@
 
 zynaddsubfx-src.cpp.o: zynaddsubfx-src.cpp
@@ -204,6 +204,9 @@ moc_DistrhoUINotes.cpp: notes/DistrhoUINotes.hpp
 zynaddsubfx/UI/%.cpp: zynaddsubfx/UI/%.fl
 	ntk-fluid -c -o zynaddsubfx/UI/$*.cpp -h zynaddsubfx/UI/$*.h $<
 
+zynaddsubfx/UI/%.h: zynaddsubfx/UI/%.fl
+	ntk-fluid -c -o zynaddsubfx/UI/$*.cpp -h zynaddsubfx/UI/$*.h $<
+
 # --------------------------------------------------------------
 
 ../libs/%:
diff --git a/source/backend/plugin/Makefile b/source/backend/plugin/Makefile
index a0ab65e96..67dc70b69 100644
--- a/source/backend/plugin/Makefile
+++ b/source/backend/plugin/Makefile
@@ -42,6 +42,9 @@ OBJS = \
 	FluidSynthPlugin.cpp.o \
 	LinuxSamplerPlugin.cpp.o
 
+FILES = \
+	moc_CarlaPluginGui.cpp
+
 TARGET = ../libcarla_plugin.a
 
 # --------------------------------------------------------------
@@ -49,7 +52,7 @@ TARGET = ../libcarla_plugin.a
 all: $(TARGET)
 
 clean:
-	rm -f $(OBJS) $(TARGET)
+	rm -f $(OBJS) $(FILES) $(TARGET)
 
 debug:
 	$(MAKE) DEBUG=true
diff --git a/source/bridges/Makefile b/source/bridges/Makefile
index 59f6a5f63..aff662402 100644
--- a/source/bridges/Makefile
+++ b/source/bridges/Makefile
@@ -30,7 +30,7 @@ LINK_FLAGS      += $(shell pkg-config --libs liblo QtCore)
 # Plugin bridges
 
 BUILD_PLUGIN_FLAGS  = $(BUILD_CXX_FLAGS)
-BUILD_PLUGIN_FLAGS += -DBUILD_BRIDGE_PLUGIN -DBRIDGE_PLUGIN -DWANT_JACK
+BUILD_PLUGIN_FLAGS += -DBUILD_BRIDGE_PLUGIN -DBRIDGE_PLUGIN
 BUILD_PLUGIN_FLAGS += -DWANT_LADSPA -DWANT_DSSI -DWANT_LV2 -DWANT_VST
 BUILD_PLUGIN_FLAGS += -I../backend/engine -I../backend/plugin -I../libs -I../theme
 BUILD_PLUGIN_FLAGS += $(QT_UI_FLAGS) $(shell pkg-config --cflags QtXml)
@@ -285,6 +285,12 @@ carla-bridge-vst-x11: $(OBJS_UI_VST_X11)
 %__vst-x11.o: %.cpp
 	$(CXX) $< $(BUILD_UI_VST_X11_FLAGS) -c -o $@
 
+# --------------------------------------------------------------
+# plugin common
+
+FILES = \
+	../backend/plugin/moc_CarlaPluginGui.cpp
+
 # --------------------------------------------------------------
 # native
 
@@ -325,8 +331,8 @@ OBJS_NATIVE += \
 	../libs/rtmempool.a \
 	../libs/widgets.a
 
-carla-bridge-native: $(OBJS_NATIVE)
-	$(CXX) $^ $(NATIVE_LINK_FLAGS) -o $@ && $(STRIP) $@
+carla-bridge-native: $(FILES) $(OBJS_NATIVE)
+	$(CXX) $(OBJS_NATIVE) $(NATIVE_LINK_FLAGS) -o $@ && $(STRIP) $@
 
 %__native.o: %.cpp
 	$(CXX) $< $(NATIVE_BUILD_FLAGS) -c -o $@
@@ -369,8 +375,8 @@ OBJS_POSIX32 += \
 	../libs/lilv.posix32.a \
 	../libs/rtmempool.posix32.a
 
-carla-bridge-posix32: $(OBJS_POSIX32)
-	$(CXX) $^ $(POSIX_LINK_FLAGS) $(POSIX_32BIT_FLAGS) -o $@ && $(STRIP) $@
+carla-bridge-posix32: $(FILES) $(OBJS_POSIX32)
+	$(CXX) $(OBJS_POSIX32) $(POSIX_LINK_FLAGS) $(POSIX_32BIT_FLAGS) -o $@ && $(STRIP) $@
 
 %__posix32.o: %.cpp
 	$(CXX) $< $(POSIX_BUILD_FLAGS) $(POSIX_32BIT_FLAGS) -c -o $@
@@ -413,8 +419,8 @@ OBJS_POSIX64 += \
 	../libs/lilv.posix64.a \
 	../libs/rtmempool.posix64.a
 
-carla-bridge-posix64: $(OBJS_POSIX64)
-	$(CXX) $^ $(POSIX_LINK_FLAGS) $(POSIX_64BIT_FLAGS) -o $@ && $(STRIP) $@
+carla-bridge-posix64: $(FILES) $(OBJS_POSIX64)
+	$(CXX) $(OBJS_POSIX64) $(POSIX_LINK_FLAGS) $(POSIX_64BIT_FLAGS) -o $@ && $(STRIP) $@
 
 %__posix64.o: %.cpp
 	$(CXX) $< $(POSIX_BUILD_FLAGS) $(POSIX_64BIT_FLAGS) -c -o $@
@@ -457,7 +463,7 @@ OBJS_WIN32 += \
 	../libs/lilv.win32.a \
 	../libs/rtmempool.win32.a
 
-carla-bridge-win32.exe: $(OBJS_WIN32)  ../libs/jackbridge-win32.dll
+carla-bridge-win32.exe: $(FILES) $(OBJS_WIN32)  ../libs/jackbridge-win32.dll
 	$(CXX) $(OBJS_WIN32) $(WIN_32BIT_FLAGS) $(WIN_LINK_FLAGS) -ljackbridge-win32 -o $@ && $(STRIP) $@
 
 %__win32.o: %.cpp
@@ -501,7 +507,7 @@ OBJS_WIN64 += \
 	../libs/lilv.win64.a \
 	../libs/rtmempool.win64.a
 
-carla-bridge-win64.exe: $(OBJS_WIN64) ../libs/jackbridge-win64.dll
+carla-bridge-win64.exe: $(FILES) $(OBJS_WIN64) ../libs/jackbridge-win64.dll
 	$(CXX) $(OBJS_WIN64) $(WIN_64BIT_FLAGS) $(WIN_LINK_FLAGS) -ljackbridge-win64 -o $@ && $(STRIP) $@
 
 %__win64.o: %.cpp
@@ -509,6 +515,11 @@ carla-bridge-win64.exe: $(OBJS_WIN64) ../libs/jackbridge-win64.dll
 
 # --------------------------------------------------------------
 
+../backend/plugin/moc_%.cpp: ../backend/plugin/%.hpp
+	$(MOC) $< -DMOC_PARSING -o $@
+
+# --------------------------------------------------------------
+
 ../backend/libcarla_native.a:
 	$(MAKE) -C ../backend/native