make: make NG_NETIF_NUMOF available in build system

8 years ago · e1842869da
1 changed files with 8 additions and 0 deletions
--- a/Makefile.include
+++ b/Makefile.include
@ -130,6 +130,14 @@ endif
 include $(RIOTBASE)/Makefile.modules
 include $(RIOTBOARD)/$(BOARD)/Makefile.include
 include $(RIOTCPU)/$(CPU)/Makefile.include
+
+# get number of interfaces straight before resolving dependencies
+NG_NETIF_NUMOF ?= 1
+
+ifneq ($(NG_NETIF_NUMOF),1)
+  CFLAGS += -DNG_NETIF_NUMOF=$(NG_NETIF_NUMOF)
+endif
+
 include $(RIOTBASE)/Makefile.dep

 USEMODULE += $(filter-out $(DISABLE_MODULE), $(DEFAULT_MODULE))