fix firmware rebuild

diff --git a/Makefile b/Makefile
index 8517dff17235979a2c41d874c73973cd57d816d2..48f22a45b8d2d1d66a8c72b1ab58f3ac5efcbf40 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 all: firmware
 
 firmware: src/firmware
-       ln -s $^ $@
+       ln -sf $^ $@
 
 src/firmware:
        $(MAKE) -C src firmware
@@ -10,4 +10,4 @@ clean:
        rm -f firmware
        $(MAKE) -C src clean
 
-.PHONY: all clean
+.PHONY: all clean src/firmware