Add script reading bootloader flags

[pub/lufa.git] / Bootloaders / makefile

diff --git a/Bootloaders/makefile b/Bootloaders/makefile
index 78af34d..0efe524 100644 (file)
--- a/Bootloaders/makefile
+++ b/Bootloaders/makefile
@@ -1,29 +1,35 @@
-#\r
-#             LUFA Library\r
-#     Copyright (C) Dean Camera, 2009.\r
-#              \r
-#  dean [at] fourwalledcubicle [dot] com\r
-#      www.fourwalledcubicle.com\r
-#\r
-\r
-# Makefile to build all the LUFA USB Bootloaders. Call with "make all" to\r
-# rebuild all bootloaders.\r
-\r
-# Bootloaders are pre-cleaned before each one is built, to ensure any\r
-# custom LUFA library build options are reflected in the compiled\r
-# code.\r
-\r
-all:\r
-       make -C 'DFU/' clean\r
-       make -C 'DFU/' all\r
-\r
-       make -C 'CDC/' clean\r
-       make -C 'CDC/' all\r
-\r
-       make -C 'TeensyHID/' clean\r
-       make -C 'TeensyHID/' all\r
-\r
-%:\r
-       make -C 'DFU/' $@\r
-       make -C 'CDC/' $@\r
-       make -C 'TeensyHID/' $@\r
+#
+#             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)