deprecated readdir_r with readdir

docker/Dockerfile

@@ -40,8 +40,6 @@ RUN apt-get update && apt-get install -y \
   libfcgi-dev \
   libcurl4-openssl-dev
 
-RUN groupadd clicon
-
 # Create a directory to hold source-code, dependencies etc
 RUN mkdir /clixon
 WORKDIR /clixon

docker/Makefile.in

@@ -56,6 +56,7 @@ distclean: clean
 
 docker:
 	sudo docker build -t $(IMAGE) .
+	@echo "cd ../example; make docker to build example application"
 
 push:
 	sudo docker push $(IMAGE)