diff --git a/conf/firmwares/subsystems/fixedwing/autopilot.makefile b/conf/firmwares/subsystems/fixedwing/autopilot.makefile
index 4b4b08358b..f52b13f9a2 100644
--- a/conf/firmwares/subsystems/fixedwing/autopilot.makefile
+++ b/conf/firmwares/subsystems/fixedwing/autopilot.makefile
@@ -228,7 +228,7 @@ jsbsim.CFLAGS 		+= -DSITL -DUSE_JSBSIM
 jsbsim.srcs 		+= $(SIMDIR)/sim_ac_jsbsim.c $(SIMDIR)/sim_ac_fw.c $(SIMDIR)/sim_ac_flightgear.c
 
 # external libraries
-jsbsim.CFLAGS 		+= -I/usr/include $(shell pkg-config glib-2.0 --cflags)
+jsbsim.CFLAGS 		+= -I/usr/include $(shell pkg-config glib-2.0 --cflags) $(shell pcre-config --libs)
 jsbsim.LDFLAGS		+= $(shell pkg-config glib-2.0 --libs) -lglibivy -lm
 
 jsbsim.CFLAGS 		+= -DDOWNLINK -DPERIODIC_TELEMETRY -DDOWNLINK_TRANSPORT=IvyTransport
diff --git a/conf/firmwares/subsystems/fixedwing/fdm_crrcsim.makefile b/conf/firmwares/subsystems/fixedwing/fdm_crrcsim.makefile
index 9e6d5a42da..a529ca4778 100644
--- a/conf/firmwares/subsystems/fixedwing/fdm_crrcsim.makefile
+++ b/conf/firmwares/subsystems/fixedwing/fdm_crrcsim.makefile
@@ -22,7 +22,7 @@ nps.srcs    += $(fbw_srcs) $(ap_srcs)
 
 nps.CFLAGS  += -DSITL -DUSE_NPS
 nps.CFLAGS  += $(shell pkg-config glib-2.0 --cflags)
-nps.LDFLAGS += $(shell pkg-config glib-2.0 --libs) -lm -lglibivy -lpcre -lgsl -lgslcblas
+nps.LDFLAGS += $(shell pkg-config glib-2.0 --libs) -lm -lglibivy $(shell pcre-config --libs) -lgsl -lgslcblas
 nps.CFLAGS  += -I$(NPSDIR) -I$(SRC_FIRMWARE) -I$(SRC_BOARD) -I../simulator -I$(PAPARAZZI_HOME)/conf/simulator/nps
 nps.LDFLAGS += $(shell sdl-config --libs)
 
diff --git a/conf/firmwares/subsystems/fixedwing/fdm_jsbsim.makefile b/conf/firmwares/subsystems/fixedwing/fdm_jsbsim.makefile
index 6d1a04f232..40c5f276eb 100644
--- a/conf/firmwares/subsystems/fixedwing/fdm_jsbsim.makefile
+++ b/conf/firmwares/subsystems/fixedwing/fdm_jsbsim.makefile
@@ -26,7 +26,7 @@ nps.srcs    += $(fbw_srcs) $(ap_srcs)
 
 nps.CFLAGS  += -DSITL -DUSE_NPS
 nps.CFLAGS  += $(shell pkg-config glib-2.0 --cflags)
-nps.LDFLAGS += $(shell pkg-config glib-2.0 --libs) -lm -lglibivy -lpcre -lgsl -lgslcblas
+nps.LDFLAGS += $(shell pkg-config glib-2.0 --libs) -lm -lglibivy $(shell pcre-config --libs) -lgsl -lgslcblas
 nps.CFLAGS  += -I$(NPSDIR) -I$(SRC_FIRMWARE) -I$(SRC_BOARD) -I../simulator -I$(PAPARAZZI_HOME)/conf/simulator/nps
 nps.LDFLAGS += $(shell sdl-config --libs)
 
diff --git a/conf/firmwares/subsystems/rotorcraft/fdm_jsbsim.makefile b/conf/firmwares/subsystems/rotorcraft/fdm_jsbsim.makefile
index 069a8cfabc..ffb90f843c 100644
--- a/conf/firmwares/subsystems/rotorcraft/fdm_jsbsim.makefile
+++ b/conf/firmwares/subsystems/rotorcraft/fdm_jsbsim.makefile
@@ -22,7 +22,7 @@ nps.MAKEFILE = nps
 
 nps.CFLAGS  += -DSITL -DUSE_NPS
 nps.CFLAGS  += $(shell pkg-config glib-2.0 --cflags)
-nps.LDFLAGS += $(shell pkg-config glib-2.0 --libs) -lm -lglibivy -lpcre -lgsl -lgslcblas
+nps.LDFLAGS += $(shell pkg-config glib-2.0 --libs) -lm -lglibivy $(shell pcre-config --libs) -lgsl -lgslcblas
 nps.CFLAGS  += -I$(NPSDIR) -I$(SRC_FIRMWARE) -I$(SRC_BOARD) -I../simulator -I$(PAPARAZZI_HOME)/conf/simulator/nps
 nps.LDFLAGS += $(shell sdl-config --libs)
 
diff --git a/sw/ground_segment/cockpit/Makefile b/sw/ground_segment/cockpit/Makefile
index dc832fa4ed..8a38286eb7 100644
--- a/sw/ground_segment/cockpit/Makefile
+++ b/sw/ground_segment/cockpit/Makefile
@@ -97,8 +97,8 @@ clean:
 
 
 CC = gcc
-CFLAGS=-g -O2 -Wall `pkg-config gtk+-2.0 --cflags` -fPIC
-LDFLAGS=`pkg-config gtk+-2.0 --libs` -s -lglibivy
+CFLAGS=-g -O2 -Wall $(shell pkg-config gtk+-2.0 --cflags) -fPIC
+LDFLAGS=$(shell pkg-config gtk+-2.0 --libs) -s -lglibivy
 
 
 ant_track : ant_track.c
diff --git a/sw/ground_segment/tmtc/GSM/Makefile b/sw/ground_segment/tmtc/GSM/Makefile
index b4a17b6b54..75ded860ec 100644
--- a/sw/ground_segment/tmtc/GSM/Makefile
+++ b/sw/ground_segment/tmtc/GSM/Makefile
@@ -4,7 +4,7 @@ Q=@
 all: SMS_GS
 
 SMS_GS: SMS_Ground_UDtest_final.c
-	gcc -g -O2 -Wall `pkg-config --cflags glib-2.0 gtk+-2.0` -L/usr/lib -lglibivy -o SMS_GS SMS_Ground_UDtest_final.c `pkg-config --libs glib-2.0 gtk+-2.0` -lglibivy
+	gcc -g -O2 -Wall $(shell pkg-config --cflags glib-2.0 gtk+-2.0) -L/usr/lib -lglibivy -o SMS_GS SMS_Ground_UDtest_final.c $(shell pkg-config --libs glib-2.0 gtk+-2.0) -lglibivy
 
 clean:
 	$(Q)rm -f SMS_GS
diff --git a/sw/ground_segment/tmtc/Makefile b/sw/ground_segment/tmtc/Makefile
index d8422d7e21..77a51e6cd6 100644
--- a/sw/ground_segment/tmtc/Makefile
+++ b/sw/ground_segment/tmtc/Makefile
@@ -126,10 +126,10 @@ settings.cmo : ../cockpit/page_settings.cmi
 
 
 CC = gcc
-GLIB_CFLAGS  = -Wall  `pkg-config glib-2.0 --cflags` -fPIC
-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
+GLIB_CFLAGS  = -Wall $(shell pkg-config glib-2.0 --cflags) -fPIC
+GLIB_LDFLAGS =  $(shell pkg-config glib-2.0 --libs) -lglibivy $(shell pcre-config --libs) -fPIC
+GTK_CFLAGS  = -Wall $(shell pkg-config gtk+-2.0 --cflags) -fPIC
+GTK_LDFLAGS =  $(shell pkg-config gtk+-2.0 --libs) -lglibivy $(shell pcre-config --libs) -fPIC
 
 UNAME = $(shell uname -s)
 
diff --git a/sw/in_progress/button/Makefile b/sw/in_progress/button/Makefile
index bfec52d75c..293b592504 100644
--- a/sw/in_progress/button/Makefile
+++ b/sw/in_progress/button/Makefile
@@ -70,10 +70,10 @@ gtk_export.ml : export.glade
 pt : ahrsview imuview ahrs2fg
 
 CC = gcc
-CFLAGS=-g -O2 -Wall `pkg-config gtk+-2.0 --cflags`
-LDFLAGS=`pkg-config gtk+-2.0 --libs` -s -lgtkdatabox -lglibivy
+CFLAGS=-g -O2 -Wall $(shell pkg-config gtk+-2.0 --cflags)
+LDFLAGS=$(shell pkg-config gtk+-2.0 --libs) -s -lgtkdatabox -lglibivy
 
-MORE_FLAGS = -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include -rdynamic  /usr/lib/libgtkgl.so -L/usr/lib -L/usr/X11R6/lib /usr/lib/libgtk.so /usr/lib/libgdk.so /usr/lib/libgmodule.so /usr/lib/libglib.so -ldl -lXi -lXext -lX11 -lm -lGLU -lGL  -Wl,--rpath -Wl,/usr/local/lib -lglibivy `pcre-config --libs`
+MORE_FLAGS = -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include -rdynamic  /usr/lib/libgtkgl.so -L/usr/lib -L/usr/X11R6/lib /usr/lib/libgtk.so /usr/lib/libgdk.so /usr/lib/libgmodule.so /usr/lib/libglib.so -ldl -lXi -lXext -lX11 -lm -lGLU -lGL  -Wl,--rpath -Wl,/usr/local/lib -lglibivy $(shell pcre-config --libs)
 
 MORE_CFLAGS = -DHAVE_DLFCN_H=1 -DSTDC_HEADERS=1  -I. -I.  -I..    -g -O2 -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include
 
@@ -107,7 +107,7 @@ FGFS_ARGS = $(FGFS_COMMON_ARGS) $(FGFS_IN_GUI_ARGS)
 #FGFS_GAME_ARGS)
 
 panic: panic.c
-	gcc -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy -lhid
+	gcc -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy -lhid
 
 #
 # Dependencies
diff --git a/sw/in_progress/fdm/Makefile b/sw/in_progress/fdm/Makefile
index 265f34be4f..e8838c11a4 100644
--- a/sw/in_progress/fdm/Makefile
+++ b/sw/in_progress/fdm/Makefile
@@ -26,11 +26,11 @@ Q=@
 all: fdm_step
 
 fdm_step: fdm_step.c
-	gcc -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy
+	gcc -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy
 
 
 fms_steps_attitude: fms_steps_attitude.c
-	gcc -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy
+	gcc -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy
 
 
 
diff --git a/sw/in_progress/inertial/C/Makefile b/sw/in_progress/inertial/C/Makefile
index c0e8483ea6..e21ba15fde 100644
--- a/sw/in_progress/inertial/C/Makefile
+++ b/sw/in_progress/inertial/C/Makefile
@@ -2,14 +2,14 @@
 # Quiet compilation
 Q=@
 
-CFLAGS = -g -Wall  `pkg-config glib-2.0 --cflags`
-LDFLAGS = `pkg-config glib-2.0 --libs` -lm
+CFLAGS = -g -Wall  $(shell pkg-config glib-2.0 --cflags)
+LDFLAGS = $(shell pkg-config glib-2.0 --libs) -lm
 
 %.o: %.c
 	gcc -c -Wall $(CFLAGS) -o $@ $<
 
-CFLAGS += `pkg-config gtk+-2.0 --cflags`
-LDFLAGS += `pkg-config gtk+-2.0 --libs` -lgtkdatabox
+CFLAGS += $(shell pkg-config gtk+-2.0 --cflags)
+LDFLAGS += $(shell pkg-config gtk+-2.0 --libs) -lgtkdatabox
 
 #
 #
diff --git a/sw/in_progress/ir_calibration/Makefile b/sw/in_progress/ir_calibration/Makefile
index 662e015cf3..9ea82a8d2d 100644
--- a/sw/in_progress/ir_calibration/Makefile
+++ b/sw/in_progress/ir_calibration/Makefile
@@ -4,8 +4,8 @@ Q=@
 
 
 CC = gcc
-CFLAGS=-g -O2 -Wall `pkg-config gtk+-2.0 --cflags`
-LDFLAGS=`pkg-config gtk+-2.0 --libs` -lglibivy -lm -lgtkdatabox
+CFLAGS=-g -O2 -Wall $(shell pkg-config gtk+-2.0 --cflags)
+LDFLAGS=$(shell pkg-config gtk+-2.0 --libs) -lglibivy -lm -lgtkdatabox
 
 ir_calib : main.c calibrator.c gui.c
 	$(CC) $(CFLAGS) -g -o $@ $^ $(LDFLAGS)
diff --git a/sw/in_progress/motor_bench/Makefile b/sw/in_progress/motor_bench/Makefile
index f103caabec..760e85cb6b 100644
--- a/sw/in_progress/motor_bench/Makefile
+++ b/sw/in_progress/motor_bench/Makefile
@@ -2,8 +2,8 @@
 Q=@
 
 CC = gcc
-CFLAGS=-g -O2 -Wall `pkg-config gtk+-2.0 --cflags` -I../../../var/MB
-LDFLAGS=`pkg-config gtk+-2.0 --libs` -s -lglibivy
+CFLAGS=-g -O2 -Wall $(shell pkg-config gtk+-2.0 --cflags) -I../../../var/MB
+LDFLAGS=$(shell pkg-config gtk+-2.0 --libs) -s -lglibivy
 
 motor_bench : main.c
 	$(CC) $(CFLAGS) -g -o $@ $^ $(LDFLAGS)
diff --git a/sw/in_progress/satcom/Makefile b/sw/in_progress/satcom/Makefile
index a45c21e257..6e035235ed 100644
--- a/sw/in_progress/satcom/Makefile
+++ b/sw/in_progress/satcom/Makefile
@@ -8,9 +8,9 @@ email2udp: email2udp.c
 udp2tcp: udp2tcp.c
 	gcc -g -O2 -Wall -o $@ $^
 tcp2ivy: tcp2ivy.c
-	gcc -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy -lm
+	gcc -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy -lm
 tcp2ivy_generic: tcp2ivy_generic.c
-	gcc -g -O2 -Wall `pkg-config glib-2.0 --cflags` -I../../../var/${AIRCRAFT} -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy -lm
+	gcc -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -I../../../var/${AIRCRAFT} -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy -lm
 
 clean:
 	$(Q)rm -f email2udp udp2tcp tcp2ivy
diff --git a/sw/in_progress/wind_tunnel/Makefile b/sw/in_progress/wind_tunnel/Makefile
index b96cb01933..cfa55d232c 100644
--- a/sw/in_progress/wind_tunnel/Makefile
+++ b/sw/in_progress/wind_tunnel/Makefile
@@ -3,8 +3,8 @@
 Q=@
 
 CC = gcc
-GLIB_CFLAGS  = -Wall  `pkg-config glib-2.0 --cflags`
-GLIB_LDFLAGS =  `pkg-config glib-2.0 --libs` -lglibivy -lpcre
+GLIB_CFLAGS  = -Wall $(shell pkg-config glib-2.0 --cflags)
+GLIB_LDFLAGS = $(shell pkg-config glib-2.0 --libs) -lglibivy $(shell pcre-config --libs)
 
 main: main.c serial_port.c
 	$(CC) $(GLIB_CFLAGS) -o $@ main.c serial_port.c $(GLIB_LDFLAGS)
diff --git a/sw/logalizer/Makefile b/sw/logalizer/Makefile
index 33d00f0ed9..3b817667b8 100644
--- a/sw/logalizer/Makefile
+++ b/sw/logalizer/Makefile
@@ -96,8 +96,8 @@ gtk_export.ml : export.glade
 pt : ahrsview imuview ahrs2fg
 
 CC = gcc
-CFLAGS=-g -O2 -Wall `pkg-config gtk+-2.0 --cflags`
-LDFLAGS=`pkg-config gtk+-2.0 --libs` -s -lgtkdatabox -lglibivy
+CFLAGS=-g -O2 -Wall $(shell pkg-config gtk+-2.0 --cflags)
+LDFLAGS=$(shell pkg-config gtk+-2.0 --libs) -s -lgtkdatabox -lglibivy
 
 motor_bench : motor_bench.c sliding_plot.c
 	$(CC) $(CFLAGS) -g -o $@ $^ $(LDFLAGS)
@@ -122,7 +122,7 @@ ifeq ("$(UNAME)","Darwin")
   IVY_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
 
-MORE_FLAGS = -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include -rdynamic  /usr/lib/libgtkgl.so -L/usr/lib -L/usr/X11R6/lib /usr/lib/libgtk.so /usr/lib/libgdk.so /usr/lib/libgmodule.so /usr/lib/libglib.so -ldl -lXi -lXext -lX11 -lm -lGLU -lGL  -Wl,--rpath -Wl,/usr/local/lib -lglibivy `pcre-config --libs`
+MORE_FLAGS = -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include -rdynamic  /usr/lib/libgtkgl.so -L/usr/lib -L/usr/X11R6/lib /usr/lib/libgtk.so /usr/lib/libgdk.so /usr/lib/libgmodule.so /usr/lib/libglib.so -ldl -lXi -lXext -lX11 -lm -lGLU -lGL  -Wl,--rpath -Wl,/usr/local/lib -lglibivy $(shell pcre-config --libs)
 
 MORE_CFLAGS = -DHAVE_DLFCN_H=1 -DSTDC_HEADERS=1  -I. -I.  -I..    -g -O2 -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include
 
@@ -132,7 +132,7 @@ disp3d: disp3d.c
 
 plotprofile: plotprofile.c
 	@echo CC $@
-	$(Q)$(CC) $(IVY_C_LIBRARYS) $(IVY_C_INCLUDES) -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy -lpcre
+	$(Q)$(CC) $(IVY_C_LIBRARYS) $(IVY_C_INCLUDES) -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy $(shell pcre-config --libs)
 
 test1: test1.c
 	@echo CC $@
@@ -179,16 +179,16 @@ test_samere: test_samere.c network.c flight_gear.c utils.c
 	$(CC) $(CFLAGS) -I../airborne -I../airborne/test -I../include -g -o $@ $^ $(LDFLAGS)
 
 ivy_example: ivy_example.c
-	$(CC) $(IVY_C_LIBRARYS) $(IVY_C_INCLUDES) -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy
+	$(CC) $(IVY_C_LIBRARYS) $(IVY_C_INCLUDES) -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy
 
 tmclient: tmclient.c
-	$(CC) $(IVY_C_LIBRARYS) $(IVY_C_INCLUDES) -g -O1 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy
+	$(CC) $(IVY_C_LIBRARYS) $(IVY_C_INCLUDES) -g -O1 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy
 
 ffjoystick: ffjoystick.c
-	$(CC) -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy -lm
+	$(CC) -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy -lm
 
 ctrlstick: ctrlstick.c
-	$(CC) -g -O2 -Wall `pkg-config glib-2.0 --cflags` -o $@ $^ `pkg-config glib-2.0 --libs` -lglibivy
+$(CC) -g -O2 -Wall $(shell pkg-config glib-2.0 --cflags) -o $@ $^ $(shell pkg-config glib-2.0 --libs) -lglibivy
 
 clean:
 	$(Q)rm -f *.opt *.out *~ core *.o *.bak .depend *.cm* play ahrsview imuview ahrs2fg plot plotter gtk_export.ml openlog2tlm disp3d plotprofile test1 test3 test_samere ivy_example tmclient ffjoystick ctrlstick sd2log motor_bench