X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/e331b531c6e6d93eb0eee42b9002074e8090ad18..refs/heads/ProMicro:/Bootloaders/makefile

diff --git a/Bootloaders/makefile b/Bootloaders/makefile
index 0fa1fcfd1..0efe52420 100644
--- a/Bootloaders/makefile
+++ b/Bootloaders/makefile
@@ -1,29 +1,35 @@
-#
-#             LUFA Library
-#     Copyright (C) Dean Camera, 2010.
-#              
-#  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, 2021.
+#
+#  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
+
+# Build each directory sequentially, even if we are building using multiple
+# cores within each project
+.NOTPARALLEL:
+
+%: $(PROJECT_DIRECTORIES)
+	@echo . > /dev/null
+
+$(PROJECT_DIRECTORIES):
+	@$(MAKE) -C $@ $(MAKECMDGOALS)
+
+.PHONY: $(PROJECT_DIRECTORIES)