makefile: rebuild backend when source changes

1 files changed, 4 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 7da056a..acd4c49 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 CMD = $(wildcard back/cmd/*)
 BIN = $(addprefix bin/, $(notdir ${CMD}))
+SRC = $(shell find back -name '*.go')
 
 all: doc public ${BIN}
 
@@ -9,10 +10,12 @@ public:
 ${BIN}: bin/%: back/cmd/%
 	go build -o $@ ./$<
 
+${BIN}: ${SRC}
+
 doc: doc/arch.png
 
 doc/arch.png: doc/arch.dot
 	dot -Tpng <$< >$@
 
 clean:
-	rm -rf bin public
+	rm -rf bin public tmp