Makefile

@@ -5,6 +5,13 @@ help: ## Print the help message
 		sort | \
 		column -s ':' -t
 
+.PHONY: check
+check: ## Check you have all dependencies
+	@command -v graph-easy >/dev/null || { echo "Install perl-graph-easy" && exit 1 ;}
+	@command -v recsel >/dev/null || { echo "Install recutils" && exit 1 ;}
+	@command -v lowdown >/dev/null || { echo "Install lowdown" && exit 1 ;}
+	@echo "All dependencies installed"
+
 ########## Network Map ##########
 
 graph_cmd = graph-easy --boxart