Merge pull request #131 from oliverschmidt/master

Two minor retro-specific changes.

cpu/6502/Makefile.6502

@@ -83,7 +83,7 @@ CUSTOM_RULE_C_TO_CO = 1
 	$(CC) -c -o $@ $(CFLAGS) -DAUTOSTART_ENABLE --create-dep $(@:.o=.d) $<
 
 CUSTOM_RULE_LINK = 1
-%.$(TARGET): %.co contiki-$(TARGET).a
+%.$(TARGET): %.co $(PROJECT_OBJECTFILES) $(PROJECT_LIBRARIES) contiki-$(TARGET).a
 	$(LD) -o $@ $(LDFLAGS) -u _main $^ $(TARGET).lib
 
 %.eth: $(OBJECTDIR)/%.o