From 3203bdc98d63b1a08dd43b0ac9cb39307daef8d9 Mon Sep 17 00:00:00 2001
From: Martin Kennedy <hurricos@gmail.com>
Date: Tue, 24 May 2022 17:08:38 -0400
Subject: [PATCH] fix: make: pre-mkdir the target build directory

---
 Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile b/Makefile
index 70959b2..3ff390b 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,7 @@ export
 # A container is built based on a given Dockerfile.
 # We mark a sentinel when a container is built.
 ${docker_src}/built/%.sentinel: ${docker_src}/%.dockerfile
+	mkdir -p $(dir $@);
 	grep -e '^FROM' $< | awk '{print $$2}' \
 		| tr : _ | xargs -I{} $(MAKE) ${docker_src}/built/{}.sentinel;
 	cd ${docker_src}; docker build -f $< --tag $* .;