Makefile

   1 ################################################################################
   2 # Desc:   APC make script
   3 # Author: kgr
   4 # Date:   2016
   5 ################################################################################
   6 # This makefile builds APC, the Asset Package Compiler for Henge, on the system.
   7 ################################################################################
   8 # Yacc
   9 YACC   := bison
  10 YFLAGS ?= -v -d -Wall
  11 YCMD    = $(YACC) $(YFLAGS) $<
  12
  13 # Ragel
  14 RLC     ?= ragel
  15 RLFALGS ?= -C
  16 RLCMD    = $(RLC) $(RLFLAGS) -o $@ $<
  17
  18 # C
  19 CC     ?= gcc
  20 CFLAGS ?= -Wall
  21 CCMD    = $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
  22
  23 # Linker
  24 LD        ?= ld
  25 LDFLAGS   ?=
  26 LDLIBS    ?= -lunistring
  27 apcLIBS   ?=
  28 apc-dLIBS ?=
  29 LDCMD      = $(LD) $(LDFLAGS) $(LDLIBS) $($1LIBS) -o $@ $^
  30
  31 # APC is built from Ragel, Bison and C source code only.
  32 ySRC  := $(shell find ./src -type f -name '*.y')
  33 rlSRC := $(shell find ./src -type f -name '*.rl')
  34 cSRC  := $(shell find ./src -type f -name '*.c')
  35
  36 # Generated files from Yacc/Bison and Ragel
  37 hGEN  := $(ySRC:%.y=%.tab.h)
  38 cGEN  := $(strip $(ySRC:%.y=%.tab.c) $(rlSRC:%.rl=%.c))
  39
  40 # Deps generation function
  41 cGENDEP = $(if $(wildcard $1),$(subst $(dir $1),,$(filter-out $1 \ %:,$(shell $(CC) -MM -MG $1))),$(info <$1>))
  42
  43 # Driver sources
  44 DRIVERS  := apc testapc
  45 $(foreach drv,$(DRIVERS),\
  46 $(eval $(drv)SRC   := $(patsubst %.c,%.o,$(filter-out $(patsubst %,src/%.c,$(filter-out $(drv),$(DRIVERS))),$(cSRC) $(cGEN))))\
  47 $(eval $(drv)-dSRC := $(patsubst %.o,%-d.o,$($(drv)SRC))))
  48
  49 # Rules
  50 .SECONDEXPANSION:
  51 $(DRIVERS:%=%-d) $(DRIVERS): $$($$@SRC) | $(hGEN)
  52         $(strip $(call LDCMD,$@))
  53
  54 %-d.o: CFLAGS+= -Og -ggdb
  55 %.o %-d.o: %.c $$(call cGENDEP,$$(dir $$@)%.c)
  56         $(strip $(CCMD))
  57
  58 %.tab.h %.tab.c: %.y
  59         $(strip $(YCMD))
  60         mv $(notdir $(<:%.y=%.tab.[ch])) $(dir $@)
  61
  62 %.c: %.rl
  63         $(strip $(RLCMD))
  64
  65 clean: $(wildcard $(cGEN) $(hGEN) $(apcSRC) $(apc-dSRC))
  66         $(if $^,rm $^)