build: give an error if PX4_ROOT not defined for PX4 build

12 years ago · 92605a63ea
1 changed files with 5 additions and 0 deletions
--- a/mk/px4_targets.mk
+++ b/mk/px4_targets.mk
@ -11,4 +11,9 @@ px4-clean:
				@@ -11,4 +11,9 @@ px4-clean:
 px4-upload:
 	make -C $(PX4_ROOT) EXTERNAL_APPS=$(PWD) upload

+else
+
+px4:
+	$(error ERROR: You need to add PX4_ROOT to your config.mk)
+
 endif