makefile

   1 ifneq ($(SECOND_CALL),true)
   2
   3 # if this is the top level instantiation of make, call back into itself with
   4 # the implicit rules option turned off. There has to be a simpler way
   5 # to do this, but I havne't figured it out.
   6 MKFLAGS := -r
   7
   8 .PHONY: all
   9 all:
  10         @SECOND_CALL=true $(MAKE) $(MKFLAGS) -f makefile
  11
  12 %:
  13         @SECOND_CALL=true $(MAKE) $(MKFLAGS) -f makefile $@
  14
  15 else
  16
  17 ifeq ($(MAKEFILE_LIST),)
  18 $(warning This build system requires the MAKEFILE_LIST feature,)
  19 $(warning which was added to GNU make in version 3.80.)
  20 $(warning You are running $(MAKE_VERSION).)
  21 $(error Required make feature missing)
  22 endif
  23
  24 # figures out the system
  25 include make.syscfg
  26
  27 # include top level macros
  28 include macros.mk
  29
  30 # sub-makefiles have to fill these in
  31 ALL_DEPS =
  32 CLEAN =
  33 FINAL =
  34 TOOLS =
  35 ALL_OBJS =
  36
  37 FINAL := $(call TOBUILDDIR, final)
  38 #$(warning FINAL = $(FINAL))
  39
  40 final: $(FINAL)
  41
  42 # includes the config of the build
  43 include config/make.config
  44
  45 include apps/makefile
  46 include kernel/makefile
  47 include kernel/addons/makefile
  48 include tools/makefile
  49 include lib/makefile
  50 include boot/$(PLATFORM)/makefile
  51
  52 clean: $(CLEAN)
  53         rm -f $(ALL_OBJS)
  54         rm -f $(ALL)
  55         rm -f $(FINAL)
  56
  57 depsclean:
  58         rm -f $(ALL_DEPS)
  59
  60 appsclean:
  61         rm -rf $(APPS_BUILD_DIR)
  62
  63 allclean: depsclean clean
  64         rm -f $(TOOLS)
  65
  66 spotless:
  67         rm -rf $(BUILD_DIR)
  68
  69 #$(warning ALL_OBJS = $(ALL_OBJS))
  70 #$(warning ALL_DEPS = $(ALL_DEPS))
  71
  72 ifeq ($(filter $(MAKECMDGOALS), allclean), )
  73 -include $(ALL_DEPS)
  74 endif
  75
  76 endif
  77