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 install
   9
  10 all: $(SUBDIRS)
  11 clean: $(SUBDIRS)
  12 distclean: $(SUBDIRS)
  13 rebuild: $(SUBDIRS)
  14 install: $(SUBDIRS)
  15
  16 help:
  17         @echo "***        Available targets        ***"
  18         @echo ""
  19         @echo "help:      prints this help"
  20         @echo ""
  21         @echo "doc:       builds (only) the documentation"
  22         @echo ""
  23         @echo "clean:     cleans current directory and all subdirectories"
  24         @echo ""
  25         @echo "distclean: cleans all generated files including possible"
  26         @echo "           leftovers caused by deleted files"
  27         @echo ""
  28         @echo "all:       make current directory and all subdirectories"
  29         @echo ""
  30         @echo "rebuild:   does clean and all"
  31         @echo ""
  32         @echo "The default silent output could be turned off by defining"
  33         @echo "'VERBOSE' shell variable as 'VERBOSE=1 make'"
  34         @echo ""
  35
  36 doc:
  37         cd doc && make
  38
  39 #
  40 # Determine mode (eg do not generate anything if not in compile mode
  41 #
  42 COMPILE=no
  43
  44 ifeq ($(MAKECMDGOALS),all)
  45 COMPILE=yes
  46 endif
  47
  48 ifeq ($(MAKECMDGOALS),)
  49 COMPILE=yes
  50 endif
  51
  52 ifeq ($(MAKECMDGOALS),rebuild)
  53 COMPILE=yes
  54 endif
  55
  56 #
  57 # 1. Generate and include dependencies for all C sources
  58 # 2. Generate OBJECTS list from CSOURCES list
  59 # 3. Adds OBJECTS to CLEAN list
  60 #
  61 ifdef CSOURCES
  62 DEPFILES=$(subst .c,.dep,$(CSOURCES))
  63 ifeq ($(COMPILE),yes)
  64 -include $(DEPFILES)
  65 endif
  66 CLEAN+=$(subst .c,.dep,$(CSOURCES))
  67 OBJECTS+=$(CSOURCES:.c=.o)
  68 CLEAN+=$(OBJECTS)
  69 endif
  70
  71 #
  72 # Automatically include library headers
  73 #
  74 ifdef LIBNAME
  75 INCLUDE+=$(LIBNAME)
  76 endif
  77
  78 #
  79 # If there was anything in INCLUDE list, create CFLAGS for each entry
  80 #
  81 ifdef INCLUDE
  82 CFLAGS+=$(addprefix -I$(TOPDIR)/include/, $(INCLUDE))
  83 endif
  84
  85 #
  86 # Walk trought SUBDIRS, this code works even for -jX
  87 #
  88 $(SUBDIRS):
  89 ifdef VERBOSE
  90         $(MAKE) -C $@ $(MAKECMDGOALS) TOP_MAKE=$(TOP_MAKE)
  91 else
  92         @export CURSUBDIR="$$CURSUBDIR/$@" && echo "DIR  $$CURSUBDIR" &&\
  93         $(MAKE) --no-print-directory -C $@ $(MAKECMDGOALS) TOP_MAKE=$(TOP_MAKE)
  94 endif
  95
  96 #
  97 # Actual make rules
  98 #
  99 $(DEPFILES): %.dep: %.c
 100 ifdef VERBOSE
 101         $(CC) -MM $(CFLAGS) $< -o $@
 102 else
 103         @echo "DEP  -I(include $(INCLUDE)) $@"
 104         @$(CC) -MM $(CFLAGS) $< -o $@
 105 endif
 106
 107 $(OBJECTS): %.o: %.c
 108 ifdef VERBOSE
 109         $(CC) $(CFLAGS) -c $< -o $@
 110 else
 111         @echo "CC   -I(include $(INCLUDE)) $@"
 112         @$(CC) $(CFLAGS) -c $< -o $@
 113 endif
 114
 115 ifdef CLEAN
 116
 117 ifeq ($(MAKECMDGOALS),distclean)
 118 CLEAN+=*.o *.dep *.gen.c *.gen.h
 119 endif
 120
 121 distclean: clean
 122
 123 clean:
 124 ifdef VERBOSE
 125         rm -f $(CLEAN)
 126 else
 127         @echo "RM   $(CLEAN)"
 128         @rm -f $(CLEAN)
 129 endif
 130 endif
 131
 132 compile: $(DEPFILES) $(OBJECTS) $(ALL)
 133
 134 rebuild: clean
 135         @$(MAKE) --no-print-directory all