# $Id: Makefile.kmk 785 2007-01-24 22:21:56Z bird $
## @file
# Sub-makefile for kmk_ash.
#

#
# Copyright (c) 2005-2008 knut st. osmundsen <bird-kBuild-spam@anduin.net>
#
# This file is part of kBuild.
#
# kBuild is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# kBuild is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with kBuild; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#
#

SUB_DEPTH = ../..
include $(KBUILD_PATH)/subheader.kmk

#INSTALLS = ash.man

PROGRAMS += kmk_ash
kmk_ash_TEMPLATE = BIN
kmk_ash_DEFS = lint SHELL SMALL KMK
if "$(USER)" == "bird"
kmk_ash_DEFS.debug = DEBUG=2
endif
kmk_ash_DEFS.linux = BSD
kmk_ash_DEFS.solaris = BSD
kmk_ash_DEFS.win = \
	BSD PC_PATH_SEP PC_DRIVE_LETTERS PC_EXE_EXTS PC_SLASHES
kmk_ash_DEFS.os2 = \
	HAVE_SYS_SIGNAME HAVE_SYSCTL_H HAVE_SETPROGNAME \
	EXEC_HASH_BANG_SCRIPT PC_OS2_LIBPATHS PC_PATH_SEP PC_DRIVE_LETTERS PC_EXE_EXTS PC_SLASHES
kmk_ash_DEFS.darwin = \
	HAVE_SYS_SIGNAME HAVE_SYSCTL_H HAVE_SETPROGNAME
kmk_ash_DEFS.dragonfly = \
	HAVE_SYS_SIGNAME HAVE_SYSCTL_H HAVE_SETPROGNAME
kmk_ash_DEFS.freebsd = \
	HAVE_SYS_SIGNAME HAVE_SYSCTL_H HAVE_SETPROGNAME
kmk_ash_INCS = $(PATH_kmk_ash) . # (the last is because of error.h)
kmk_ash_CFLAGS.win = -I. ## @todo kBuild bug?
kmk_ash_INCS.win = win
kmk_ash_SOURCES = \
	alias.c \
	cd.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 \
	output.c \
	parser.c \
	redir.c \
	show.c \
	syntax.c \
	trap.c \
	var.c \
	bltin/echo.c \
	bltin/kill.c \
	bltin/test.c \
	$(PATH_kmk_ash)/arith.c \
	$(PATH_kmk_ash)/builtins.c \
	$(PATH_kmk_ash)/init.c \
	$(PATH_kmk_ash)/nodes.c
kmk_ash_SOURCES.linux = \
	sys_signame.c \
	strlcpy.c \
	setmode.c
kmk_ash_SOURCES.win = \
	win/mscfakes.c \
	win/err.c \
	win/dirent.c \
	sys_signame.c \
	strlcpy.c \
	setmode.c
kmk_ash_SOURCES.solaris = \
	sys_signame.c \
	strlcpy.c \
	setmode.c

kmk_ash_INTERMEDIATES = \
	$(PATH_kmk_ash)/arith.h \
	$(PATH_kmk_ash)/builtins.h \
	$(PATH_kmk_ash)/nodes.h \
	$(PATH_kmk_ash)/token.h
kmk_ash_CLEAN = \
	$(kmk_ash_INTERMEDIATES) \
	$(PATH_kmk_ash)/arith.c \
	$(PATH_kmk_ash)/arith_lex.c \
	$(PATH_kmk_ash)/builtins.c \
	$(PATH_kmk_ash)/init.c \
	$(PATH_kmk_ash)/nodes.c

kmk_ash.man_TEMPLATE = usr.bin.man
kmk_ash.man_SOURCES = \
	sh.1=>ash.1
#ash.man_SYMLINKS = \
#	ash.1.gz=>sh.1

if1of ($(KBUILD_TARGET), win nt)
#
# Use the pregenerated code.
#
kmk_ash_DEPS :=
kmk_ash_SOURCES += $(PATH_kmk_ash)/arith_lex.c

include $(FILE_KBUILD_SUB_FOOTER)

define def_copy_generated
$(PATH_kmk_ash)/$(src): generated/$(src)
	$$(RM) -f $$@
	$$(CP) -f $$^ $$@
endef

$(foreach src, arith.h arith.c arith_lex.c builtins.h builtins.c nodes.h nodes.c token.h init.c,\
$(eval $(def_copy_generated)))


else
#
# Generate the code on the fly.
#

ifeq (1,2) #disabled for now.
kmk_ash_USES = lex #yacc
kmk_ash_SOURCES += arith_lex.l
kmk_ash_LEXTOOL = FLEX
kmk_ash_LEXFLAGS = -8
else
kmk_ash_SOURCES += $(PATH_kmk_ash)/arith_lex.c
endif

include $(FILE_KBUILD_SUB_FOOTER)

#
# ATTENTION! ATTENTION! ATTENTION!
#
# Older ash versions has trouble with some of these scripts, great.
# Kudos to the NetBSD guys for this clever move. ;)
#
# So, when building for the frist time, setting BOOSTRAP_SHELL=/bin/bash is good idea.
#
BOOTSTRAP_SHELL ?= $(SHELL)
ifndef YACC
 YACC := $(firstword $(which byacc) $(which yacc) yacc)
endif

$(PATH_kmk_ash)/arith.h + $(PATH_kmk_ash)/arith.c: $(kmk_ash_PATH)/arith.y | $(call DIRDEP,$(PATH_kmk_ash))
	$(YACC) -ld $^
	$(MV) -f y.tab.c $(PATH_kmk_ash)/arith.c
	$(MV) -f y.tab.h $(PATH_kmk_ash)/arith.h

ifndef kmk_ash_LEXTOOL
$(PATH_kmk_ash)/arith_lex.c: $(kmk_ash_PATH)/arith_lex.l | $(call DIRDEP,$(PATH_kmk_ash))
	flex -8 -o$@ $^                     # 8-bit lex scanner for arithmetic
endif

$(PATH_kmk_ash)/builtins.h + $(PATH_kmk_ash)/builtins.c: \
		$(kmk_ash_PATH)/mkbuiltins \
		$(kmk_ash_PATH)/shell.h \
		$(kmk_ash_PATH)/builtins.def \
		| $(call DIRDEP,$(PATH_kmk_ash))
	$(BOOTSTRAP_SHELL) $+ $(dir $@)
	[ -f $(PATH_kmk_ash)/builtins.h ]

$(PATH_kmk_ash)/nodes.h + $(PATH_kmk_ash)/nodes.c: \
		$(kmk_ash_PATH)/mknodes.sh \
		$(kmk_ash_PATH)/nodetypes \
		$(kmk_ash_PATH)/nodes.c.pat \
		| $(call DIRDEP,$(PATH_kmk_ash))
	$(BOOTSTRAP_SHELL) $+ $(dir $@)
	[ -f $(dir $@)/nodes.h ]

$(PATH_kmk_ash)/token.h: $(kmk_ash_PATH)/mktokens | $(call DIRDEP,$(PATH_kmk_ash))
	$(BOOTSTRAP_SHELL) $+
	$(MV) token.h $@

$(PATH_kmk_ash)/init.c: \
		$(kmk_ash_PATH)/mkinit.sh \
		$(abspathex $(filter-out $(PATH_kmk_ash)/%,$(kmk_ash_SOURCES)), $(kmk_ash_PATH)) \
		| $(call DIRDEP,$(PATH_kmk_ash))
	$(BOOTSTRAP_SHELL) $+
	$(MV) init.c $@

endif # generate on the fly