diff --git a/sw/ground_segment/tmtc/Makefile b/sw/ground_segment/tmtc/Makefile
index 93bb2bbe3f..977de67274 100644
--- a/sw/ground_segment/tmtc/Makefile
+++ b/sw/ground_segment/tmtc/Makefile
@@ -38,7 +38,7 @@ VAR = ../../../var
 all: link server messages settings dia diadec $(VAR)/boa.conf ivy_tcp_aircraft ivy_tcp_controller broadcaster ivy2udp ivy_serial_bridge
 
 clean:
-	rm -f link server messages settings dia diadec *.bak *~ core *.o .depend *.opt *.out *.cm* ivy_tcp_aircraft ivy_tcp_controller broadcaster ivy2udp
+	rm -f link server messages settings dia diadec *.bak *~ core *.o .depend *.opt *.out *.cm* ivy_tcp_aircraft ivy_tcp_controller broadcaster ivy2udp ivy_serial_bridge gpsd2ivy
 
 OCAMLC = ocamlc
 OCAMLOPT = ocamlopt
@@ -139,20 +139,27 @@ GLIB_LDFLAGS =  `pkg-config glib-2.0 --libs` -lglibivy -lpcre $(FPIC)
 GTK_CFLAGS  = -Wall  `pkg-config gtk+-2.0 --cflags` $(FPIC)
 GTK_LDFLAGS =  `pkg-config gtk+-2.0 --libs` -lglibivy -lpcre $(FPIC)
 
+UNAME = $(shell uname -s)
+
+ifeq ("$(UNAME)","Darwin")
+  C_LIBRARYS = $(shell if test -d /opt/paparazzi/lib; then echo "-L/opt/paparazzi/lib"; elif test -d /opt/local/lib; then echo "-L/opt/local/lib"; fi)
+  C_INCLUDES = $(shell if test -d /opt/paparazzi/include; then echo "-I/opt/paparazzi/include"; elif test -d /opt/local/include; then echo "-I/opt/local/include"; fi)
+endif
+
 gpsd2ivy: gpsd2ivy.c
-	$(CC) $(GLIB_CFLAGS) -o $@ $< $(GLIB_LDFLAGS) -lgps
+	$(CC) $(GLIB_CFLAGS) $(C_LIBRARYS) $(C_INCLUDES) -o $@ $< $(GLIB_LDFLAGS) -lgps
 
 c_ivy_client_example_1: c_ivy_client_example_1.c
-	$(CC) $(GLIB_CFLAGS) -o $@ $< $(GLIB_LDFLAGS)
+	$(CC) $(GLIB_CFLAGS) $(C_LIBRARYS) $(C_INCLUDES) -o $@ $< $(GLIB_LDFLAGS)
 
 c_ivy_client_example_2: c_ivy_client_example_2.c
-	$(CC) $(GLIB_CFLAGS) -o $@ $< $(GLIB_LDFLAGS)
+	$(CC) $(GLIB_CFLAGS) $(C_LIBRARYS) $(C_INCLUDES) -o $@ $< $(GLIB_LDFLAGS)
 
 c_ivy_client_example_3: c_ivy_client_example_3.c
-	$(CC) $(GTK_CFLAGS) -o $@ $< $(GTK_LDFLAGS)
+	$(CC) $(GTK_CFLAGS) $(C_LIBRARYS) $(C_INCLUDES) -o $@ $< $(GTK_LDFLAGS)
 
 ivy_serial_bridge: ivy_serial_bridge.c
-	$(CC) $(GTK_CFLAGS) -o $@ $< $(GTK_LDFLAGS)
+	$(CC) $(GTK_CFLAGS) $(C_LIBRARYS) $(C_INCLUDES) -o $@ $< $(GTK_LDFLAGS)
 
 
 #