CC = gcc
-CFLAGS = -Wall -Os
-CPPFLAGS = `pkg-config --cflags dbus-glib-1`
-LDFLAGS = `pkg-config --libs dbus-glib-1`
+CFLAGS = -Wall -Os $(EXTRA_CFLAGS)
+CPPFLAGS = `pkg-config --cflags dbus-glib-1` $(EXTRA_CPPFLAGS)
+LDFLAGS = `pkg-config --libs dbus-glib-1` $(EXTRA_LDFLAGS)
PREFIX = /usr
APP = browser-switchboard