post.mk

   1 #
   2 # Make no subdirs by default
   3 #
   4 ifndef SUBDIRS
   5 SUBDIRS=
   6 endif
   7
   8 .PHONY: $(SUBDIRS) all clean rebuild help doc
   9
  10 all: $(SUBDIRS)
  11 clean: $(SUBDIRS)
  12 rebuild: $(SUBDIRS)
  13
  14 help:
  15         @echo "***      Available targets      ***"
  16         @echo ""
  17         @echo "help:    prints this help"
  18         @echo ""
  19         @echo "doc:     builds (only) the documentation"
  20         @echo ""
  21         @echo "clean:   cleans current directory and all subdirectories"
  22         @echo ""
  23         @echo "all:     make current directory and all subdirectories"
  24         @echo ""
  25         @echo "rebuild: does clean and all"
  26         @echo ""
  27         @echo "The default silent output could be turned off by defining"
  28         @echo "'VERBOSE' shell variable as 'VERBOSE=1 make'"
  29         @echo ""
  30
  31 doc:
  32         cd doc && make
  33
  34 #
  35 # Determine mode (eg do not generate anything if not in compile mode
  36 #
  37 COMPILE=no
  38
  39 ifeq ($(MAKECMDGOALS),all)
  40 COMPILE=yes
  41 endif
  42
  43 ifeq ($(MAKECMDGOALS),)
  44 COMPILE=yes
  45 endif
  46
  47 ifeq ($(MAKECMDGOALS),rebuild)
  48 COMPILE=yes
  49 endif
  50
  51 #
  52 # 1. Generate and include dependencies for all C sources
  53 # 2. Generate OBJECTS list from CSOURCES list
  54 # 3. Adds OBJECTS to CLEAN list
  55 #
  56 ifdef CSOURCES
  57 DEPFILES=$(subst .c,.dep,$(CSOURCES))
  58 ifeq ($(COMPILE),yes)
  59 -include $(DEPFILES)
  60 endif
  61 CLEAN+=$(subst .c,.dep,$(CSOURCES))
  62 OBJECTS+=$(CSOURCES:.c=.o)
  63 CLEAN+=$(OBJECTS)
  64 endif
  65
  66 #
  67 # Automatically include library headers
  68 #
  69 ifdef LIBNAME
  70 INCLUDE+=$(LIBNAME)
  71 endif
  72
  73 #
  74 # If there was anything in INCLUDE list, create CFLAGS for each entry
  75 #
  76 ifdef INCLUDE
  77 CFLAGS+=$(addprefix -I$(TOPDIR)/include/, $(INCLUDE))
  78 endif
  79
  80 #
  81 # Walk trought SUBDIRS, this code works even for -jX
  82 #
  83 $(SUBDIRS):
  84 ifdef VERBOSE
  85         $(MAKE) -C $@ $(MAKECMDGOALS) TOP_MAKE=$(TOP_MAKE)
  86 else
  87         @export CURSUBDIR="$$CURSUBDIR/$@" && echo "DIR  $$CURSUBDIR" &&\
  88         $(MAKE) --no-print-directory -C $@ $(MAKECMDGOALS) TOP_MAKE=$(TOP_MAKE)
  89 endif
  90
  91 #
  92 # Actual make rules
  93 #
  94 $(DEPFILES): %.dep: %.c
  95 ifdef VERBOSE
  96         $(CC) -MM $(CFLAGS) $< -o $@
  97 else
  98         @echo "DEP  -I(include $(INCLUDE)) $@"
  99         @$(CC) -MM $(CFLAGS) $< -o $@
 100 endif
 101
 102 $(OBJECTS): %.o: %.c
 103 ifdef VERBOSE
 104         $(CC) $(CFLAGS) -c $< -o $@
 105 else
 106         @echo "CC   -I(include $(INCLUDE)) $@"
 107         @$(CC) $(CFLAGS) -c $< -o $@
 108 endif
 109
 110 ifdef CLEAN
 111 clean:
 112 ifdef VERBOSE
 113         rm -f $(CLEAN)
 114 else
 115         @echo "RM   $(CLEAN)"
 116         @rm -f $(CLEAN)
 117 endif
 118 endif
 119
 120 compile: $(DEPFILES) $(OBJECTS) $(ALL)
 121
 122 rebuild: clean
 123         @$(MAKE) --no-print-directory all