Update makefiles, fixes build on Arch

Makefile

@@ -149,18 +149,18 @@ src/resources_rc.py: resources/resources.qrc
 
 # ------------------------------------------------------------------------------------------------------------------------------------------------------
 
-CPP: carla_backend carla_bridge carla_discovery carla_lilv jackmeter xycontroller
+CPP: carla-backend carla-bridge carla-discovery carla-lilv jackmeter xycontroller
 
-carla_backend: carla_lilv
+carla-backend: carla-lilv
 	$(MAKE) -C c++/carla-backend
 
-carla_bridge: carla_lilv
+carla-bridge: carla-lilv
 	$(MAKE) -C c++/carla-bridge
 
-carla_discovery:
+carla-discovery:
 	$(MAKE) -C c++/carla-discovery NATIVE=1
 
-carla_lilv:
+carla-lilv:
 	$(MAKE) -C c++/carla-lilv
 
 jackmeter:

c++/carla-discovery/Makefile

@@ -57,7 +57,7 @@ win64:   carla-discovery-win64.exe
 OBJS = carla-discovery.cpp
 
 carla-discovery-native: carla-discovery.cpp ../carla-lilv/carla_lilv.a
-	$(CXX) $^ $(BUILD_FLAGS) $(LINK_FLAGS) -o $@ && $(STRIP) $@
+	$(CXX) $^ $(POSIX_BUILD_FLAGS) $(POSIX_LINK_FLAGS) -o $@ && $(STRIP) $@
 
 carla-discovery-posix32: $(OBJS) ../carla-lilv/carla_lilv_posix32.a
 	$(CXX) $^ $(POSIX_BUILD_FLAGS) $(POSIX_32BIT_FLAGS) $(POSIX_LINK_FLAGS) -o $@ && $(STRIP) $@