Fix initial build

Makefile

@@ -179,7 +179,7 @@ config: FORCE
 		echo '$(patsubst %,CONFIG_PACKAGE_%=m,$(sort $(filter-out -%,$(GLUON_DEFAULT_PACKAGES) $(GLUON_SITE_PACKAGES) $(PROFILE_PACKAGES))))' \
 			| sed -e 's/ /\n/g'; \
 	) > $(BOARD_BUILDDIR)/config
-	+$(NO_TRACE_MAKE) scripts/config/conf
+	+$(NO_TRACE_MAKE) scripts/config/conf OPENWRT_BUILD=0
 	scripts/config/conf -D $(BOARD_BUILDDIR)/config -w $(BOARD_BUILDDIR)/config Config.in
 
 	ln -sf $(BOARD_BUILDDIR)/config .config