Contribs: build microdns when needed

Author: jbkempf

contrib/src/microdns/rules.mak

@@ -3,8 +3,11 @@
 LIBMICRODNS_VERSION := 0.0.2
 LIBMICRODNS_URL := https://github.com/videolabs/libmicrodns/releases/download/$(LIBMICRODNS_VERSION)/microdns-$(LIBMICRODNS_VERSION).tar.gz
 
+ifdef BUILD_NETWORK
+PKGS += microdns
+endif
 ifeq ($(call need_pkg,"microdns >= 0.0.1"),)
-PKGS_FOUND += libmicrodns
+PKGS_FOUND += microdns
 endif
 
 $(TARBALLS)/microdns-$(LIBMICRODNS_VERSION).tar.gz: