X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/1d433d4506113c95285f633e3553ff62d4cfd05d..refs/heads/ProMicro:/Bootloaders/makefile

diff --git a/Bootloaders/makefile b/Bootloaders/makefile
index ed855ce6a..0efe52420 100644
--- a/Bootloaders/makefile
+++ b/Bootloaders/makefile
@@ -1,6 +1,6 @@
 #
 #             LUFA Library
-#     Copyright (C) Dean Camera, 2011.
+#     Copyright (C) Dean Camera, 2021.
 #
 #  dean [at] fourwalledcubicle [dot] com
 #           www.lufa-lib.org
@@ -13,14 +13,23 @@
 # custom LUFA library build options are reflected in the compiled
 # code.
 
-all:
-	$(MAKE) -C DFU clean
-	$(MAKE) -C DFU all
+PROJECT_DIRECTORIES := $(shell ls -d */)
 
-	$(MAKE) -C CDC clean
-	$(MAKE) -C CDC all
+# This makefile is potentially infinitely recursive if something really bad
+# happens when determining the set of project directories - hard-abort if
+# more than 10 levels deep to avoid angry emails.
+ifeq ($(MAKELEVEL), 10)
+   $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
+endif
 
-%:
-	$(MAKE) -C DFU $@
-	$(MAKE) -C CDC $@
+# 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)