#	$NetBSD: Makefile,v 1.80 2005/06/26 19:10:49 christos Exp $
#	@(#)Makefile	8.4 (Berkeley) 5/5/95
SMALLPROG = 1

OBJDIR ?= obj

PROG=sh
SHSRCS=	alias.c cd.c echo.c error.c eval.c exec.c expand.c \
	histedit.c input.c jobs.c mail.c main.c memalloc.c miscbltin.c \
	mystring.c options.c parser.c redir.c show.c trap.c output.c var.c \
	test.c kill.c syntax.c yywrap.c
GENSRCS=arith.c arith_lex.c builtins.c init.c nodes.c
GENHDRS=$(OBJDIR)/arith.h $(OBJDIR)/builtins.h $(OBJDIR)/nodes.h $(OBJDIR)/token.h
SRCS=	${SHSRCS} ${GENSRCS}

DPSRCS+=${GENHDRS}

CC        = gcc
CFLAGS    = -g -Zomf -Dlint -DSHELL -DEXEC_HASH_BANG_SCRIPT -DPC_OS2_LIBPATHS -DPC_PATH_SEP -DPC_DRIVE_LETTERS -DPC_EXE_EXTS -I$(OBJDIR) -I. # (the last is because of error.h)
# for debug:
LD        = gcc
LDFLAGS   = -Zomf -Zmap -Zstack 384 -Zfork
#LDFLAGS += -Wl,-static -static
YACC      = yacc
LEX       = flex

ifneq ($(BUILD_TYPE),release)
CFLAGS  += -g -DDEBUG=2 -O0
LDFLAGS += -g
else
CFLAGS += -O2 -march=i586 -mcpu=i586 -fno-strength-reduce  -fomit-frame-pointer
endif

ifdef SMALLPROG
CFLAGS += -DSMALL
else
CFLAGS += -Ilibedit
SRCS   += printf.c
endif

LFLAGS=	-8	# 8-bit lex scanner for arithmetic
YFLAGS=	-d
ifdef CRUNCHEDPROG
LFLAGS+=-L
YFLAGS+=-l
endif


all: ash-dyn.exe ash-static.exe

CLEANFILES+= ${GENSRCS} ${GENHDRS} y.tab.h
CLEANFILES+= trace

$(OBJDIR)/token.h: mktokens | $(OBJDIR)
	bash $^
	mv -f token.h $@.tmp
	mv -f $@.tmp $@

$(OBJDIR)/builtins.h: $(OBJDIR)/builtins.c | $(OBJDIR)

$(OBJDIR)/builtins.c: mkbuiltins shell.h builtins.def | $(OBJDIR)
	bash $^ $(OBJDIR)
	[ -f $(OBJDIR)/builtins.h ]

$(OBJDIR)/init.c: mkinit.sh $(foreach src,$(SHSRCS),$(firstword $(wildcard ./$(src) ./funcs/$(src) ./bltin/$(src)) $(src))) | $(OBJDIR)
	bash $^
	mv -f init.c $@.tmp
	mv -f $@.tmp $@

$(OBJDIR)/nodes.h: $(OBJDIR)/nodes.c | $(OBJDIR)

$(OBJDIR)/nodes.c: mknodes.sh nodetypes nodes.c.pat | $(OBJDIR)
	bash $^ $(OBJDIR)
	[ -f $(OBJDIR)/nodes.h ]

$(OBJDIR)/arith.h $(OBJDIR)/arith.c: arith.y | $(OBJDIR)
	$(YACC) $(YFLAGS) $^
	mv -f y.tab.c $(OBJDIR)/arith.c
	mv -f y.tab.h $(OBJDIR)/arith.h

$(OBJDIR)/arith_lex.c: arith_lex.l | $(OBJDIR)
	$(LEX) $(LFLAGS) -o$@ $^

#######

OBJS :=

define def_compile

$(eval s := $(firstword $(wildcard ./$(src) ./funcs/$(src) ./bltin/$(src)) $(src)))
$(eval o := $(OBJDIR)/$(patsubst %.c,%.o,$(src)))
$(eval OBJS += $(o))

$(o): $(s) | $(GENHDRS) $(OBJDIR)
	$$(CC) -c $$(CFLAGS) -o $$@ $(s)

endef

$(foreach src,$(SHSRCS),$(eval $(def_compile)))

define def_compile_gen

$(eval o := $(patsubst %.c,%.o,$(src)))
$(eval OBJS += $(o))

$(o): $(src) | $(OBJDIR)
	$$(CC) -c $$(CFLAGS) -o $$@ $(src)

endef

$(foreach src,$(addprefix $(OBJDIR)/,$(GENSRCS)),$(eval $(def_compile_gen)))

$(OBJDIR):
	mkdir -p $@

#######

ash-dyn.exe: $(OBJS)
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS)
#	lxlite /X /F /APP:4096 /S /T $@

ash-static.exe: $(OBJS)
	$(CC) $(CFLAGS) -Wl,-static -static $(LDFLAGS) -lc_omf386 -o $@ $(OBJS)
#	lxlite /X /F /APP:4096 /S /T $@

#%.exe: %.c
#	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $<

#echo.o: bltin/echo.c
#	$(CC) -c -o $@ $(CFLAGS) $<
#test.o: bltin/test.c
#	$(CC) -c -o $@ $(CFLAGS) $<

clean:
	rm -f core *.o $(CLEAN_FILES)