diff --git a/Common/Makefile b/Common/Makefile
index 82950b9..3539288 100644
--- a/Common/Makefile
+++ b/Common/Makefile
@@ -7,14 +7,19 @@ OBJECTS = AMBEFEC.o AnnouncementUnit.o ArduinoController.o BeaconUnit.o Callsign
 	  SlowDataDecoder.o SlowDataEncoder.o SoundCardController.o SoundCardReaderWriter.o SplitController.o TCPReaderWriter.o \
 	  Timer.o UDPReaderWriter.o UDRCController.o URIUSBController.o Utils.o
 
+.PHONY: all
 all:		Common.a
 
 Common.a:	$(OBJECTS)
 		$(AR) rcs Common.a $(OBJECTS)
 
+-include $(OBJECTS:.o=.d)
+
 %.o: %.cpp
 		$(CXX) -DwxUSE_GUI=0 $(CFLAGS) -c -o $@ $<
+		$(CXX) -MM -DwxUSE_GUI=0 $(CFLAGS) $< > $*.d
 
+.PHONY: clean
 clean:
 		$(RM) Common.a *.o *.d *.bak *~
 
diff --git a/DStarRepeater/Makefile b/DStarRepeater/Makefile
index bfc7826..8f65cf9 100644
--- a/DStarRepeater/Makefile
+++ b/DStarRepeater/Makefile
@@ -1,17 +1,23 @@
 OBJECTS = DStarRepeaterApp.o DStarRepeaterLogRedirect.o DStarRepeaterRXThread.o DStarRepeaterStatusData.o \
 	  DStarRepeaterThread.o DStarRepeaterTRXThread.o DStarRepeaterTXRXThread.o DStarRepeaterTXThread.o
 
+.PHONY: all
 all:		dstarrepeaterd
 
-dstarrepeaterd:	$(OBJECTS)
+dstarrepeaterd:	$(OBJECTS) ../Common/Common.a
 		$(CXX) $(OBJECTS) ../Common/Common.a $(LDFLAGS) $(LIBS) -o dstarrepeaterd
 
+-include $(OBJECTS:.o=.d)
+
 %.o: %.cpp
 		$(CXX) -DwxUSE_GUI=0 $(CFLAGS) -I../Common -c -o $@ $<
+		$(CXX) -MM -DwxUSE_GUI=0 $(CFLAGS) -I../Common $< > $*.d
 
+.PHONY: install
 install:
 		install -g bin -o root -m 0775 dstarrepeaterd $(BINDIR)
 
 clean:
 		$(RM) dstarrepeaterd *.o *.d *.bak *~
 
+../Common/Common.a:
diff --git a/DStarRepeater/MakefileGUI b/DStarRepeater/MakefileGUI
index aba746c..9df8212 100644
--- a/DStarRepeater/MakefileGUI
+++ b/DStarRepeater/MakefileGUI
@@ -3,15 +3,21 @@ OBJECTS = DStarRepeaterApp.o DStarRepeaterFrame.o DStarRepeaterLogRedirect.o DSt
 
 all:		dstarrepeater
 
-dstarrepeater:	$(OBJECTS)
+dstarrepeater:	$(OBJECTS) ../Common/Common.a ../GUICommon/GUICommon.a
 		$(CXX) $(OBJECTS) ../Common/Common.a ../GUICommon/GUICommon.a $(LDFLAGS) $(GUILIBS) -o dstarrepeater
 
 %.o: %.cpp
 		$(CXX) $(CFLAGS) -I../Common -I../GUICommon -c -o $@ $<
+		$(CXX) -MM $(CFLAGS) -I../Common -I../GUICommon $< > $*.d
 
+.PHONY: install
 install:
 		install -g bin -o root -m 0775 dstarrepeater $(BINDIR)
 
+.PHONY: clean
 clean:
 		$(RM) dstarrepeater *.o *.d *.bak *~
 
+../Common/Common.a:
+../GUICommon/GUICommon.a:
+
diff --git a/DStarRepeaterConfig/Makefile b/DStarRepeaterConfig/Makefile
index 588f005..b74b9e5 100644
--- a/DStarRepeaterConfig/Makefile
+++ b/DStarRepeaterConfig/Makefile
@@ -5,17 +5,25 @@ OBJECTS = DStarRepeaterConfigActiveHangSet.o DStarRepeaterConfigAnnouncementSet.
 	  DStarRepeaterConfigIcomSet.o DStarRepeaterConfigMMDVMSet.o DStarRepeaterConfigModemSet.o DStarRepeaterConfigNetworkSet.o \
 	  DStarRepeaterConfigSoundCardSet.o DStarRepeaterConfigSplitSet.o DStarRepeaterConfigTimesSet.o
 
+.PHONY: all
 all:		dstarrepeaterconfig
 
-dstarrepeaterconfig:	$(OBJECTS)
+dstarrepeaterconfig:	$(OBJECTS) ../GUICommon/GUICommon.a ../Common/Common.a
 		$(CXX) $(OBJECTS) ../GUICommon/GUICommon.a ../Common/Common.a $(LDFLAGS) $(GUILIBS) -o dstarrepeaterconfig
 
+-include $(OBJECTS:.o=.d)
+
 %.o: %.cpp
 		$(CXX) $(CFLAGS) -I../GUICommon -I../Common -c -o $@ $<
+		$(CXX) -MM $(CFLAGS) -I../GUICommon -I../Common $< > $*.d
 
+.PHONY: install
 install:
 		install -g bin -o root -m 0775 dstarrepeaterconfig $(BINDIR)
 
+.PHONY: install
 clean:
 		$(RM) dstarrepeaterconfig *.o *.d *.bak *~
 
+../GUICommon/GUICommon.a:
+../Common/Common.a:
diff --git a/GUICommon/Makefile b/GUICommon/Makefile
index cd9a158..7c7c0c9 100644
--- a/GUICommon/Makefile
+++ b/GUICommon/Makefile
@@ -1,13 +1,18 @@
 OBJECTS = AddressTextCtrl.o CallsignTextCtrl.o MessageTextCtrl.o PortTextCtrl.o RestrictedTextCtrl.o
 
+.PHONY: all
 all:		GUICommon.a
 
 GUICommon.a:	$(OBJECTS)
 		$(AR) rcs GUICommon.a $(OBJECTS)
 
+-include $(OBJECTS:.o=.d)
+
 %.o: %.cpp
 		$(CXX) $(CFLAGS) -c -o $@ $<
+		$(CXX) -MM $(CFLAGS) $< > $*.d
 
+.PHONY: clean
 clean:
 		$(RM) GUICommon.a *.o *.d *.bak *~
 
diff --git a/Makefile b/Makefile
index 40858b1..993212e 100644
--- a/Makefile
+++ b/Makefile
@@ -11,26 +11,32 @@ export LDFLAGS :=
 
 all:	DStarRepeater/dstarrepeaterd DStarRepeaterConfig/dstarrepeaterconfig
 
-DStarRepeater/dstarrepeaterd:	Common/Common.a
-	make -C DStarRepeater
+DStarRepeater/dstarrepeaterd:	Common/Common.a force
+	$(MAKE) -C DStarRepeater
 
-DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a force
+	$(MAKE) -C DStarRepeaterConfig
 
-GUICommon/GUICommon.a:
-	make -C GUICommon
+GUICommon/GUICommon.a: force
+	$(MAKE) -C GUICommon
 
-Common/Common.a:
-	make -C Common
+Common/Common.a: force
+	$(MAKE) -C Common
 
+.PHONY: install
 install:	all
-	make -C Data install
-	make -C DStarRepeater install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater install
+	$(MAKE) -C DStarRepeaterConfig install
 
+.PHONY: clean
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater clean
-	make -C DStarRepeaterConfig clean
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater clean
+	$(MAKE) -C DStarRepeaterConfig clean
+
+.PHONY: force
+force:
+	@true
 
diff --git a/Makefile.Pi b/Makefile.Pi
index 9a8f23f..951c283 100644
--- a/Makefile.Pi
+++ b/Makefile.Pi
@@ -11,26 +11,31 @@ export LDFLAGS :=
 
 all:	DStarRepeater/dstarrepeaterd DStarRepeaterConfig/dstarrepeaterconfig
 
-DStarRepeater/dstarrepeaterd:	Common/Common.a
-	make -C DStarRepeater
+DStarRepeater/dstarrepeaterd:	Common/Common.a force
+	$(MAKE) -C DStarRepeater
 
-DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a force
+	$(MAKE) -C DStarRepeaterConfig
 
-GUICommon/GUICommon.a:
-	make -C GUICommon
+GUICommon/GUICommon.a: force
+	$(MAKE) -C GUICommon
 
-Common/Common.a:
-	make -C Common
+Common/Common.a: force
+	$(MAKE) -C Common
 
+.PHONY:
 install:	all
-	make -C Data install
-	make -C DStarRepeater install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater install
+	$(MAKE) -C DStarRepeaterConfig install
 
+.PHONY: clean
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater clean
-	make -C DStarRepeaterConfig clean
-
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater clean
+	$(MAKE) -C DStarRepeaterConfig clean
+
+.PHONY: force
+force:
+	@true
diff --git a/MakefileGUI b/MakefileGUI
index 4774fb4..67f33ff 100644
--- a/MakefileGUI
+++ b/MakefileGUI
@@ -11,26 +11,31 @@ export LDFLAGS :=
 
 all:	DStarRepeater/dstarrepeater DStarRepeaterConfig/dstarrepeaterconfig
 
-DStarRepeater/dstarrepeater:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeater -f MakefileGUI
+DStarRepeater/dstarrepeater:	GUICommon/GUICommon.a Common/Common.a force
+	$(MAKE) -C DStarRepeater -f MakefileGUI
 
-DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a force
+	$(MAKE) -C DStarRepeaterConfig
 
-GUICommon/GUICommon.a:
-	make -C GUICommon
+GUICommon/GUICommon.a: force
+	$(MAKE) -C GUICommon
 
-Common/Common.a:
-	make -C Common
+Common/Common.a: force
+	$(MAKE) -C Common
 
+.PHONY: install
 install:	all
-	make -C Data install
-	make -C DStarRepeater -f MakefileGUI install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater -f MakefileGUI install
+	$(MAKE) -C DStarRepeaterConfig install
 
+.PHONY: clean
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater -f MakefileGUI clean
-	make -C DStarRepeaterConfig clean
-
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater -f MakefileGUI clean
+	$(MAKE) -C DStarRepeaterConfig clean
+
+.PHONY: force
+force:
+	@true
diff --git a/MakefileGUIPi b/MakefileGUIPi
index 201a0e0..b6f2834 100644
--- a/MakefileGUIPi
+++ b/MakefileGUIPi
@@ -11,26 +11,31 @@ export LDFLAGS :=
 
 all:	DStarRepeater/dstarrepeater DStarRepeaterConfig/dstarrepeaterconfig
 
-DStarRepeater/dstarrepeater:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeater -f MakefileGUI
+DStarRepeater/dstarrepeater:	GUICommon/GUICommon.a Common/Common.a force
+	$(MAKE) -C DStarRepeater -f MakefileGUI
 
-DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a
-	make -C DStarRepeaterConfig
+DStarRepeaterConfig/dstarrepeaterconfig:	GUICommon/GUICommon.a Common/Common.a force
+	$(MAKE) -C DStarRepeaterConfig
 
-GUICommon/GUICommon.a:
-	make -C GUICommon
+GUICommon/GUICommon.a: force
+	$(MAKE) -C GUICommon
 
-Common/Common.a:
-	make -C Common
+Common/Common.a: force
+	$(MAKE) -C Common
 
+.PHONY: install
 install:	all
-	make -C Data install
-	make -C DStarRepeater -f MakefileGUI install
-	make -C DStarRepeaterConfig install
+	$(MAKE) -C Data install
+	$(MAKE) -C DStarRepeater -f MakefileGUI install
+	$(MAKE) -C DStarRepeaterConfig install
 
+.PHONY: clean
 clean:
-	make -C Common clean
-	make -C GUICommon clean
-	make -C DStarRepeater clean
-	make -C DStarRepeaterConfig clean
-
+	$(MAKE) -C Common clean
+	$(MAKE) -C GUICommon clean
+	$(MAKE) -C DStarRepeater clean
+	$(MAKE) -C DStarRepeaterConfig clean
+
+.PHONY: force
+force:
+	@true