# Top-level Makefile for Emacs under MS-DOS/DJGPP v2.0 or higher. -*-makefile-*-

# Copyright (C) 1996,1997,1998,1999,2000,2001,2002
#  Free Software Foundation, Inc.

# This file is part of GNU Emacs.

# GNU Emacs 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, or (at your option)
# any later version.

# GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

# make all	to compile and build Emacs.
# make install	to install it.
# make TAGS	to update tags tables.
#
# make clean  or  make mostlyclean
#      Delete all files from the current directory that are normally
#      created by building the program.	 Don't delete the files that
#      record the configuration.  Also preserve files that could be made
#      by building, but normally aren't because the distribution comes
#      with them.
#
#      Delete `.dvi' files here if they are not part of the distribution.
# 
# make distclean
#      Delete all files from the current directory that are created by
#      configuring or building the program.  If you have unpacked the
#      source and built the program without creating any other files,
#      `make distclean' should leave only the files that were in the
#      distribution.
# 
# make realclean
#      Delete everything from the current directory that can be
#      reconstructed with this Makefile.  This typically includes
#      everything deleted by distclean, plus more: C source files
#      produced by Bison, tags tables, info files, and so on.
#
# make extraclean
#      Still more severe - delete backup and autosave files, too.

# This gork is required for those who use a Unix-style shell, and
# have SHELL in the environment pointing to it.  Here we force
# Make to use COMMAND.COM instead.  This Makefile won't work otherwise.
# (The /xyzzy directory is used to minimize the chance that someone
# actually has such a directory with an incompatible command.com.  We
# used to have /dos there, but some Windows installations have an old
# version of DOS stashed in that directory, and command.com from there
# won't run on Windows, complaining about "Incorrect DOS version".
# Make will look up PATH for the shell executable, so the directory name
# is not important.)
SHELL=/xyzzy/command
MAKESHELL=/xyzzy/command

# Generate a full pathname of the top-level installation directory
top_srcdir := $(subst \,/,$(shell cd))

# Find out which version of Emacs this is.
version := ${shell sed -n -e '/(defconst emacs-version/s/^[^"]*\("[^"]*"\).*/\1/p' lisp/version.el}

all:	maybe_bootstrap lib-src src man lispref lispintro

lib-src: FRC
	cd lib-src
	$(MAKE) top_srcdir=${top_srcdir} version=${version}
	cd ..

src: FRC
	cd src
	$(MAKE) top_srcdir=${top_srcdir}
	djecho -s '/-geometry/s,^.*,set environment HOME $(top_srcdir),' \
	          '/environment *TERM/s/^.*/set environment TERM internal/' \
	          '/x_error_quitter/s/^.*/set environment NAME root/' >gdb.sed
	sed -f gdb.sed _gdbinit >gdb.tmp
	djecho -a gdb.tmp -s 'set environment USER root' \
	                     'set environment EMACSPATH $(top_srcdir)/bin' \
	                     'set environment SHELL $(subst \,/,$(COMSPEC))' \
	                     'set environment PATH $(subst \,/,$(PATH))'
	update gdb.tmp gdb.ini
	rm -f gdb.tmp gdb.sed
	cd ..
	if exist leim\Makefile redir $(MAKE) -C leim top_srcdir=${top_srcdir}

man lispref lispintro:	FRC
	cd $@
	$(MAKE) top_srcdir=${top_srcdir}
	cd ..

install: all
	if not exist bin\nul md bin
	cd lib-src
	command.com /c >/dev/null for %p in (hexl etags ctags b2m ebrowse) do\
	   if exist %p.exe mv -f %p.exe ../bin
	if exist fns.el update fns.el ../bin/fns.el
	cd ..
	cd src
	stubify emacs
	stubedit emacs.exe minstack=512k
	mv -f emacs.exe ../bin/
	cd ..
	djecho -s "(if (fboundp 'normal-top-level-add-subdirs-to-load-path)" \
	          "    (normal-top-level-add-subdirs-to-load-path))" \
	    > ./subdirs.el
	if not exist .\site-lisp\subdirs.el \
	   update ./subdirs.el ./site-lisp/subdirs.el
	rm -f ./subdirs.el

FRC:

# We cannot use [a-zA-Z]* like the mainline distribution does, because
# that causes all file names to be returned in upper-case on DOS...
TAGS tags:	lib-src FRC
	cd lib-src
	if exist etags.exe mv -f etags.exe ../bin
	cd ..
	cd lisp
	../bin/etags .../*.el
	cd ..
	cd src
	../bin/etags --include=../lisp/TAGS \
	'--regex=/[ 	]*DEFVAR_[A-Z_ 	(]+"\([^"]+\)"/' *.c *.h s/msdos.h m/intel386.h
	cd ..
	./bin/etags --include=src/TAGS

check:
	@echo "We don't have any tests for GNU Emacs yet."

clean:
	cd lib-src
	$(MAKE) clean
	cd ..
	cd src
	$(MAKE) clean
	cd ..
	cd oldxmenu
	-$(MAKE) clean
	cd ..
	cd leim
	if exist Makefile redir $(MAKE) clean
	cd ..

.PHONY: bootstrap bootstrap-lisp-1 boostrap-src bootstrap-lisp bootstrap-clean
.PHONY: maybe_bootstrap

maybe_bootstrap:
	@if not exist lisp\abbrev.elc djecho \
	 "Some *.elc files are missing.  You should do a `make bootstrap'."
	@if not exist lisp\abbrev.elc redir -e /dev/null -oe redir fail-this-make.exe

bootstrap: bootstrap-clean-before bootstrap-lisp-1 bootstrap-src bootstrap-lisp bootstrap-clean-after all info

bootstrap-lisp-1:
	cd lisp; $(MAKE) $(MFLAGS) bootstrap-clean

bootstrap-lisp:
	cd lisp; $(MAKE) $(MFLAGS) bootstrap EMACS=../src/b-emacs.exe

bootstrap-src:
	cd src; $(MAKE) $(MFLAGS) bootstrap

### Used for `bootstrap' to avoid deleting existing dumped Emacs executables.
bootstrap-clean-before: FRC
	cd src;      $(MAKE) $(MFLAGS) mostlyclean
	cd lib-src;  $(MAKE) $(MFLAGS) clean
	cd leim;     $(MAKE) $(MFLAGS) clean

bootstrap-clean-after:
	cd src; $(MAKE) $(MFLAGS) mostlyclean