From ab09354c5cd91404e7de0111dfb82e0b58e963a7 Mon Sep 17 00:00:00 2001
From: Dean <Dean@d5102386-fcda-11dd-9fdb-3debd5008f28>
Date: Mon, 4 Jun 2012 15:38:05 +0000
Subject: Add emergency aborts to the recursive makefiles to prevent system
 failures due to infinite recursion if something happens while building the
 project lists.

git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@2303 d5102386-fcda-11dd-9fdb-3debd5008f28
---
 Demos/Device/LowLevel/makefile | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'Demos/Device/LowLevel')

diff --git a/Demos/Device/LowLevel/makefile b/Demos/Device/LowLevel/makefile
index 4673bfe5..639b2530 100644
--- a/Demos/Device/LowLevel/makefile
+++ b/Demos/Device/LowLevel/makefile
@@ -15,6 +15,13 @@
 
 PROJECT_DIRECTORIES = $(shell ls -d *)
 
+# This makefile is potentially infinitely recursive if something really bad
+# happens when determining the set of project directories - hard-abort if
+# more than 10 levels deep to avoid angry emails.
+ifeq ($(MAKELEVEL), 10)
+   $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
+endif
+
 all:
 	@$(foreach PROJECT, $(PROJECT_DIRECTORIES), $(MAKE) -s -C $(PROJECT) clean all;)
 
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