Don't error out if build/ directory already exists.

11 years ago · 5830fae26f
1 changed files with 1 additions and 1 deletions
--- a/stm/Makefile
+++ b/stm/Makefile
@ -162,7 +162,7 @@ $(BUILD)/flash.elf: $(OBJ)
 	arm-none-eabi-size $@

 $(BUILD):
-	mkdir $@
+	mkdir -p $@

 $(BUILD)/%.o: %.s
 	$(AS) -o $@ $<