#	Makefile.linux

PROG=	ash
SRCS=	alias.c arith.c arith_lex.c \
	builtins.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 nodes.c options.c parser.c printf.c redir.c \
	show.c syntax.c trap.c output.c var.c test.c kill.c

OBJ1 =	init.o
OBJ2 =	alias.o arith.o arith_lex.o \
	builtins.o cd.o echo.o error.o eval.o exec.o expand.o \
	histedit.o input.o jobs.o mail.o main.o memalloc.o miscbltin.o \
	mystring.o nodes.o options.o parser.o printf.o redir.o \
	show.o syntax.o trap.o output.o var.o test.o kill.o

OBJS =	$(OBJ1) $(OBJ2)

YACC =	bison -y
LEX  =	flex -l

SHELL_DEFS = -DSHELL -DSMALL
SRC_DEFS =  -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -D__BIT_TYPES_DEFINED__
OPTFLAGS = -g -O2 -pipe
INCLUDES = -I.
CFLAGS = $(SHELL_DEFS) $(SRC_DEFS) $(OPTFLAGS) $(INCLUDES)
LDFLAGS =

CLEANFILES =\
	builtins.c builtins.h init.c mkinit mknodes mksyntax \
	nodes.c nodes.h syntax.c syntax.h signames.c token.h \
	arith.c arith.h arith_lex.c \
	printf.c test.c echo.c kill.c

all:	$(OBJS)
	$(CC) -o $(PROG) $(OBJS) $(LDFLAGS)
	$(CC) -static -o $(PROG).static $(OBJS) $(LDFLAGS)

install: all
	install -d $(DESTDIR)/bin
	install $(PROG) $(DESTDIR)/bin/$(PROG)
	install $(PROG).static $(DESTDIR)/bin/$(PROG).static
	install -d $(DESTDIR)/usr/share/man/man1
	install -m 644 sh.1 $(DESTDIR)/usr/share/man/man1/ash.1

parser.o: token.h

token.h: mktokens
	sh ./mktokens

builtins.h builtins.c: mkbuiltins shell.h builtins.def
	sh ./mkbuiltins shell.h builtins.def . "$(CFLAGS)"

init.c: mkinit $(SRCS)
	./mkinit $(SRCS)
	touch init.c

mkinit: mkinit.c
	$(CC) $(CFLAGS) $(LDFLAGS) mkinit.c -o $@ $(LDADD)

nodes.c nodes.h: mknodes nodetypes nodes.c.pat
	./mknodes nodetypes nodes.c.pat

mknodes: mknodes.c
	$(CC) $(CFLAGS) $(LDFLAGS) mknodes.c -o $@ $(LDADD)

syntax.c syntax.h: mksyntax
	./mksyntax

mksyntax: mksyntax.c parser.h
	$(CC) $(CFLAGS) $(LDFLAGS) mksyntax.c -o $@ $(LDADD)

signames.c: mksignames
	./mksignames

echo.c: bltin/echo.c
	ln -s $< $@

test.c: bltin/test.c
	ln -s $< $@

kill.c: bltin/kill.c
	ln -s $< $@

printf.c: bltin/printf.c
	ln -s $< $@

arith.c: arith.y
	$(YACC) $<
	mv y.tab.c $@

arith_lex.o: arith_lex.c arith.h

arith_yylex.o: arith_yylex.c arith.h

arith_lex.c: arith_lex.l
	$(LEX) $<
	mv lex.yy.c $@

arith.h: arith.c
	sed -n '/^#define ARITH/p' $< > $@

clean:
	rm -f core $(CLEANFILES) $(PROG) $(PROG).static $(OBJS)