Demos/Device/LowLevel/makefile

   1 #
   2 #             LUFA Library
   3 #     Copyright (C) Dean Camera, 2018.
   4 #
   5 #  dean [at] fourwalledcubicle [dot] com
   6 #           www.lufa-lib.org
   7 #
   8
   9 # Makefile to build all the LUFA Device Demos. Call with "make all" to
  10 # rebuild all Device demos.
  11
  12 # Projects are pre-cleaned before each one is built, to ensure any
  13 # custom LUFA library build options are reflected in the compiled
  14 # code.
  15
  16 PROJECT_DIRECTORIES := $(shell ls -d */)
  17
  18 # This makefile is potentially infinitely recursive if something really bad
  19 # happens when determining the set of project directories - hard-abort if
  20 # more than 10 levels deep to avoid angry emails.
  21 ifeq ($(MAKELEVEL), 10)
  22    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
  23 endif
  24
  25 # Build each directory sequentially, even if we are building using multiple
  26 # cores within each project
  27 .NOTPARALLEL:
  28
  29 %: $(PROJECT_DIRECTORIES)
  30         @echo . > /dev/null
  31
  32 $(PROJECT_DIRECTORIES):
  33         @$(MAKE) -C $@ $(MAKECMDGOALS)
  34
  35 .PHONY: $(PROJECT_DIRECTORIES)