X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/be9d0a5aa97c84cc8723f69f2b88576965e386aa..5b6bae3445d81a00f0dddf5759aa38d011f90cef:/Bootloaders/makefile

diff --git a/Bootloaders/makefile b/Bootloaders/makefile
index 1083587f7..003069b9a 100644
--- a/Bootloaders/makefile
+++ b/Bootloaders/makefile
@@ -1,29 +1,46 @@
-#
-#             LUFA Library
-#     Copyright (C) Dean Camera, 2009.
-#              
-#  dean [at] fourwalledcubicle [dot] com
-#      www.fourwalledcubicle.com
-#
-
-# Makefile to build all the LUFA USB Bootloaders. Call with "make all" to
-# rebuild all bootloaders.
-
-# Bootloaders are pre-cleaned before each one is built, to ensure any
-# custom LUFA library build options are reflected in the compiled
-# code.
-
-all:
-	make -C 'DFU/' clean
-	make -C 'DFU/' all
-
-	make -C 'CDC/' clean
-	make -C 'CDC/' all
-	
-	make -C 'TeensyHID/' clean
-	make -C 'TeensyHID/' all
-
-%:
-	make -C 'DFU/' $@
-	make -C 'CDC/' $@
-	make -C 'TeensyHID/' $@
+#
+#             LUFA Library
+#     Copyright (C) Dean Camera, 2012.
+#
+#  dean [at] fourwalledcubicle [dot] com
+#           www.lufa-lib.org
+#
+
+# Makefile to build all the LUFA USB Bootloaders. Call with "make all" to
+# rebuild all bootloaders.
+
+# Bootloaders are pre-cleaned before each one is built, to ensure any
+# custom LUFA library build options are reflected in the compiled
+# code.
+
+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)