X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/56e792c95b1a29e61d9204a8f7f305d7f33261f1..da42e8840d760b79462071ff84cdce4ff823ad2c:/Demos/Host/LowLevel/makefile

diff --git a/Demos/Host/LowLevel/makefile b/Demos/Host/LowLevel/makefile
index 8c32dc327..3cab43dd3 100644
--- a/Demos/Host/LowLevel/makefile
+++ b/Demos/Host/LowLevel/makefile
@@ -1,6 +1,6 @@
 #
 #             LUFA Library
-#     Copyright (C) Dean Camera, 2012.
+#     Copyright (C) Dean Camera, 2013.
 #
 #  dean [at] fourwalledcubicle [dot] com
 #           www.lufa-lib.org
@@ -13,36 +13,34 @@
 # custom LUFA library build options are reflected in the compiled
 # code.
 
-all:
-	$(MAKE) -s -C AndroidAccessoryHost clean all
-	$(MAKE) -s -C AudioInputHost clean all
-	$(MAKE) -s -C AudioOutputHost clean all
-	$(MAKE) -s -C GenericHIDHost clean all
-	$(MAKE) -s -C JoystickHostWithParser clean all
-	$(MAKE) -s -C KeyboardHost clean all
-	$(MAKE) -s -C MassStorageHost clean all
-	$(MAKE) -s -C MIDIHost clean all
-	$(MAKE) -s -C MouseHost clean all
-	$(MAKE) -s -C MouseHostWithParser clean all
-	$(MAKE) -s -C PrinterHost clean all
-	$(MAKE) -s -C RNDISEthernetHost clean all
-	$(MAKE) -s -C StillImageHost clean all
-	$(MAKE) -s -C VirtualSerialHost clean all
-
-%:
-	$(MAKE) -s -C AndroidAccessoryHost $@
-	$(MAKE) -s -C AudioInputHost $@
-	$(MAKE) -s -C AudioOutputHost $@
-	$(MAKE) -s -C GenericHIDHost $@
-	$(MAKE) -s -C JoystickHostWithParser $@
-	$(MAKE) -s -C KeyboardHost $@
-	$(MAKE) -s -C KeyboardHostWithParser $@
-	$(MAKE) -s -C MassStorageHost $@
-	$(MAKE) -s -C MIDIHost $@
-	$(MAKE) -s -C MouseHost $@
-	$(MAKE) -s -C MouseHostWithParser $@
-	$(MAKE) -s -C PrinterHost $@
-	$(MAKE) -s -C RNDISEthernetHost $@
-	$(MAKE) -s -C StillImageHost $@
-	$(MAKE) -s -C VirtualSerialHost $@
+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)
+   $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
+endif
+
+# Need to special-case building without a per-project object directory
+ifeq ($(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)