summaryrefslogtreecommitdiffstats
path: root/lib/lufa/Bootloaders/makefile
diff options
context:
space:
mode:
Diffstat (limited to 'lib/lufa/Bootloaders/makefile')
-rw-r--r--lib/lufa/Bootloaders/makefile46
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/lufa/Bootloaders/makefile b/lib/lufa/Bootloaders/makefile
new file mode 100644
index 0000000000..e030ad44ab
--- /dev/null
+++ b/lib/lufa/Bootloaders/makefile
@@ -0,0 +1,46 @@
+#
+# LUFA Library
+# Copyright (C) Dean Camera, 2017.
+#
+# 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)