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 LDCMD    = $(LD) $(LDFLAGS) $(LDLIBS) -o $@ $^
  28
  29 # APC is built from Ragel, Bison and C source code only.
  30 ySRC  := $(shell find ./src -type f -name '*.y')
  31 rlSRC := $(shell find ./src -type f -name '*.rl')
  32 cSRC  := $(shell find ./src -type f -name '*.c')
  33
  34 # Generated files from Yacc/Bison and Ragel
  35 hGEN  := $(ySRC:%.y=%.tab.h)
  36 cGEN  := $(strip $(ySRC:%.y=%.tab.c) $(rlSRC:%.rl=%.c))
  37
  38 # Functions
  39 cGENDEP = $(if $(wildcard $1),$(subst src/,,$(filter-out $1 \ %:,$(shell $(CC) -MM -MG $1))),$(info <$1>))
  40 ldFLAGS = $(strip $(LDFLAGS) $(LDLIBS) $(VA_ARGS))
  41
  42 # Rules
  43 apcSRC   := $(patsubst %.c,%.o,$(cSRC) $(cGEN))
  44 apc-dSRC := $(patsubst %.o,%-d.o,$(apcSRC))
  45
  46 .SECONDEXPANSION:
  47 apc-d apc: $$($$@SRC) | $(hGEN)
  48         $(strip $(LDCMD))
  49
  50 %-d.o: CFLAGS+= -Og -ggdb
  51 %.o %-d.o: %.c $$(call cGENDEP,$$(dir $$@)%.c)
  52         $(strip $(CCMD))
  53
  54 %.tab.h %.tab.c: %.y
  55         $(strip $(YCMD))
  56         mv $(notdir $(<:%.y=%.tab.[ch])) $(dir $@)
  57
  58 %.c: %.rl
  59         $(strip $(RLCMD))
  60
  61 clean: $(wildcard $(cGEN) $(hGEN) $(apcSRC) $(apc-dSRC))
  62         rm $^