From 9b57f660aeb9f8b94893d546d703b95928cb3640 Mon Sep 17 00:00:00 2001
From: Dean <Dean@d5102386-fcda-11dd-9fdb-3debd5008f28>
Date: Mon, 30 Jul 2012 17:17:40 +0000
Subject: Tag the LUFA 120730 release.

git-svn-id: http://lufa-lib.googlecode.com/svn/tags/LUFA-120730@2428 d5102386-fcda-11dd-9fdb-3debd5008f28
---
 Demos/DualRole/ClassDriver/makefile | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

(limited to 'Demos/DualRole/ClassDriver/makefile')

diff --git a/Demos/DualRole/ClassDriver/makefile b/Demos/DualRole/ClassDriver/makefile
index 28e06a3c..6d16493e 100644
--- a/Demos/DualRole/ClassDriver/makefile
+++ b/Demos/DualRole/ClassDriver/makefile
@@ -13,9 +13,34 @@
 # custom LUFA library build options are reflected in the compiled
 # code.
 
-all:
-	$(MAKE) -s -C MouseHostDevice clean all
+PROJECT_DIRECTORIES := $(shell ls -d */)
 
-%:
-	$(MAKE) -s -C MouseHostDevice $@
+# This makefile is potentially infinitely recursive if something really bad
+# happens when determining the set of project directories - hard-abort if
+# more than 10 levels deep to avoid angry emails.
+ifeq ($(MAKELEVEL), 10)
+   $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
+endif
 
+# Need to special-case building without a per-project object directory
+ifeq ($(OBJDIR),)
+   # If no target specified, force "clean all" and disallow parallel build   
+   ifeq ($(MAKECMDGOALS),)
+      MAKECMDGOALS := clean all
+      .NOTPARALLEL:
+   endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
+   ifneq ($(findstring all, $(MAKECMDGOALS)),)
+      MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
+   endif
+endif
+
+%: $(PROJECT_DIRECTORIES)
+	@echo . > /dev/null
+
+$(PROJECT_DIRECTORIES):
+	@$(MAKE) -C $@ $(MAKECMDGOALS)
+    
+.PHONY: $(PROJECT_DIRECTORIES)
-- 
cgit v1.2.3