Add OBJDIR optional build variable to the BULD build system module, to allow the...

[pub/USBasp.git] / Bootloaders / makefile

diff --git a/Bootloaders/makefile b/Bootloaders/makefile
index c9f4941..bffee42 100644 (file)
--- a/Bootloaders/makefile
+++ b/Bootloaders/makefile
@@ -13,18 +13,19 @@
 # custom LUFA library build options are reflected in the compiled
 # code.
 
-all:
-       $(MAKE) -C CDC clean
-       $(MAKE) -C CDC all
+PROJECT_DIRECTORIES = $(shell ls -d */)
 
-       $(MAKE) -C HID clean
-       $(MAKE) -C HID all
+# This makefile is potentially infinitely recursive if something really bad
+# happens when determining the set of project directories - hard-abort if
+# more than 10 levels deep to avoid angry emails.
+ifeq ($(MAKELEVEL), 10)
+   $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
+endif
 
-       $(MAKE) -C DFU clean
-       $(MAKE) -C DFU all
+all:
+ifeq ($(OBJDIR),)
+       @$(foreach PROJECT, $(PROJECT_DIRECTORIES), $(MAKE) -s -C $(PROJECT) clean all;)
+endif
 
 %:
-       $(MAKE) -C CDC $@
-       $(MAKE) -C DFU $@
-       $(MAKE) -C HID $@
-
+       @$(foreach PROJECT, $(PROJECT_DIRECTORIES), $(MAKE) -s -C $(PROJECT) $@;)