Add check and error to the BUILD module if OBJDIR option is set but object filenames...

[pub/USBasp.git] / Demos / Host / ClassDriver / makefile

diff --git a/Demos/Host/ClassDriver/makefile b/Demos/Host/ClassDriver/makefile
index ace1874..a2b14c8 100644 (file)
--- a/Demos/Host/ClassDriver/makefile
+++ b/Demos/Host/ClassDriver/makefile
@@ -13,62 +13,32 @@
 # custom LUFA library build options are reflected in the compiled
 # code.
 
-all:
-       $(MAKE) -C AndroidAccessoryHost clean
-       $(MAKE) -C AndroidAccessoryHost all
-
-       $(MAKE) -C AudioInputHost clean
-       $(MAKE) -C AudioInputHost all
-
-       $(MAKE) -C AudioOutputHost clean
-       $(MAKE) -C AudioOutputHost all
-
-       $(MAKE) -C JoystickHostWithParser clean
-       $(MAKE) -C JoystickHostWithParser all
-
-       $(MAKE) -C KeyboardHost clean
-       $(MAKE) -C KeyboardHost all
-
-       $(MAKE) -C KeyboardHostWithParser clean
-       $(MAKE) -C KeyboardHostWithParser all
-
-       $(MAKE) -C MassStorageHost clean
-       $(MAKE) -C MassStorageHost all
-
-       $(MAKE) -C MIDIHost clean
-       $(MAKE) -C MIDIHost all
-
-       $(MAKE) -C MouseHost clean
-       $(MAKE) -C MouseHost all
-
-       $(MAKE) -C MouseHostWithParser clean
-       $(MAKE) -C MouseHostWithParser all
-
-       $(MAKE) -C PrinterHost clean
-       $(MAKE) -C PrinterHost all
-
-       $(MAKE) -C RNDISEthernetHost clean
-       $(MAKE) -C RNDISEthernetHost all
-
-       $(MAKE) -C StillImageHost clean
-       $(MAKE) -C StillImageHost all
-
-       $(MAKE) -C VirtualSerialHost clean
-       $(MAKE) -C VirtualSerialHost all
-
-%:
-       $(MAKE) -C AndroidAccessoryHost $@
-       $(MAKE) -C AudioInputHost $@
-       $(MAKE) -C AudioOutputHost $@
-       $(MAKE) -C JoystickHostWithParser $@
-       $(MAKE) -C KeyboardHost $@
-       $(MAKE) -C KeyboardHostWithParser $@
-       $(MAKE) -C MassStorageHost $@
-       $(MAKE) -C MIDIHost $@
-       $(MAKE) -C MouseHost $@
-       $(MAKE) -C MouseHostWithParser $@
-       $(MAKE) -C PrinterHost $@
-       $(MAKE) -C RNDISEthernetHost $@
-       $(MAKE) -C StillImageHost $@
-       $(MAKE) -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)
+   $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
+endif
+
+# If building without a per-project object directory, we can't build in parallel
+ifeq ($(OBJDIR),)
+   .NOTPARALLEL:
+
+   # Ensure projects are pre-cleaned if the target is the default or "all"
+   ifeq ($(MAKECMDGOALS),)
+      MAKECMDGOALS := clean all
+   endif
+   ifneq ($(findstring all, $(MAKECMDGOALS)),)
+      MAKECMDGOALS := clean $(MAKECMDGOALS)
+   endif
+endif
+
+%: $(PROJECT_DIRECTORIES)
+       @echo . > /dev/null
+
+$(PROJECT_DIRECTORIES):
+       @$(MAKE) -C $@ $(MAKECMDGOALS)
+    
+.PHONY: $(PROJECT_DIRECTORIES)