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 "check:     do pre-commit check"
  33         @echo "           (currently checks for exported symbols)"
  34         @echo ""
  35         @echo "The default silent output could be turned off by defining"
  36         @echo "'VERBOSE' shell variable as 'VERBOSE=1 make'"
  37         @echo ""
  38
  39 doc:
  40         @cd $(TOPDIR)/doc && make
  41
  42 check:
  43         @cd $(TOPDIR)/build && ./check_symbols.sh
  44
  45 #
  46 # Determine mode (eg do not generate anything if not in compile mode
  47 #
  48 COMPILE=no
  49
  50 ifeq ($(MAKECMDGOALS),all)
  51 COMPILE=yes
  52 endif
  53
  54 ifeq ($(MAKECMDGOALS),)
  55 COMPILE=yes
  56 endif
  57
  58 ifeq ($(MAKECMDGOALS),rebuild)
  59 COMPILE=yes
  60 endif
  61
  62 #
  63 # 1. Generate and include dependencies for all C sources
  64 # 2. Generate OBJECTS list from CSOURCES list
  65 # 3. Adds OBJECTS to CLEAN list
  66 #
  67 ifdef CSOURCES
  68 DEPFILES=$(subst .c,.dep,$(CSOURCES))
  69 ifeq ($(COMPILE),yes)
  70 -include $(DEPFILES)
  71 endif
  72 CLEAN+=$(subst .c,.dep,$(CSOURCES))
  73 OBJECTS+=$(CSOURCES:.c=.o)
  74 CLEAN+=$(OBJECTS)
  75 endif
  76
  77 #
  78 # Automatically include library headers
  79 #
  80 ifdef LIBNAME
  81 INCLUDE+=$(LIBNAME)
  82 endif
  83
  84 #
  85 # If there was anything in INCLUDE list, create CFLAGS for each entry
  86 #
  87 ifdef INCLUDE
  88 CFLAGS+=$(addprefix -I$(TOPDIR)/include/, $(INCLUDE))
  89 endif
  90
  91 #
  92 # Walk trought SUBDIRS, this code works even for -jX
  93 #
  94 $(SUBDIRS):
  95 ifdef VERBOSE
  96         $(MAKE) -C $@ $(MAKECMDGOALS) TOP_MAKE=$(TOP_MAKE)
  97 else
  98         @export CURSUBDIR="$$CURSUBDIR/$@" && echo "DIR  $$CURSUBDIR" &&\
  99         $(MAKE) --no-print-directory -C $@ $(MAKECMDGOALS) TOP_MAKE=$(TOP_MAKE)
 100 endif
 101
 102 #
 103 # Actual make rules
 104 #
 105 $(DEPFILES): %.dep: %.c
 106 ifdef VERBOSE
 107         $(CC) -MM $(CFLAGS) $< -o $@
 108 else
 109         @echo "DEP  -I(include $(INCLUDE)) $@"
 110         @$(CC) -MM $(CFLAGS) $< -o $@
 111 endif
 112
 113 $(OBJECTS): %.o: %.c
 114 ifdef VERBOSE
 115         $(CC) $(CFLAGS) -c $< -o $@
 116 else
 117         @echo "CC   -I(include $(INCLUDE)) $@"
 118         @$(CC) $(CFLAGS) -c $< -o $@
 119 endif
 120
 121 ifdef CLEAN
 122
 123 ifeq ($(MAKECMDGOALS),distclean)
 124 CLEAN+=*.o *.dep *.gen.c *.gen.h
 125 endif
 126
 127 distclean: clean
 128
 129 clean:
 130 ifdef VERBOSE
 131         rm -f $(CLEAN)
 132 else
 133         @echo "RM   $(CLEAN)"
 134         @rm -f $(CLEAN)
 135 endif
 136 endif
 137
 138 compile: $(DEPFILES) $(OBJECTS) $(ALL)
 139
 140 rebuild: clean
 141         @$(MAKE) --no-print-directory all