#!/usr/bin/make -f
# -*- makefile -*-

# This file is licensed under the terms of the Gnu Public License.
# With the one additional provision that Ian Jackson's name may not be
# removed from the file.

# Copyright 1994,1995 Ian Jackson
# Copyright 2004-2005 Jrme Marant <jerome@debian.org>
# Copyright 1998-2010 Rob Browning <rlb@defaultvalue.org>

# Originally copied from the GNU Hello Debian rules file (1.3).
# Modified for emacs by Mark Eichin <eichin@kitten.gen.ma.us>.
# Debhelper support added via one of Joey Hess' example files.
# See the debian/changelog for further historical information.

# TODO:
#
#   Figure out what happened to fns-*.elc
#   Should we set defaults for things like xsupport at the top here?
#   Deal with build_binary_pkg and continue integration.

# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1

SHELL := /bin/bash

quilt := QUILT_PATCHES=debian/patches quilt

pf := set -o pipefail

# This package uses debian/source/format 3.0 (quilt).

# For now we assume that emacs' versioning scheme is always
# MAJOR.MINORtinyrev where MAJOR and MINOR are integers and tinyrev is
# an optional lowercase letter (or letters).  We also assume that
# upstream uses a numbering scheme that sorts in a "Debian friendly"
# way.  So far that's always been true.  If it becomes false, some of
# the values below will have to be set manually.

# As you might expect, a "debian/rules clean" should always get you
# back to the state you were in before "debian/rules build".  In order
# to accomplish that, this rules file actually performs three
# independent builds to produce the emacsXY, emacsXY-nox, and
# emacsXY-lucid packages.  The source is actually copied into separate
# debian/build-* directories and built there.  Certain aspects of the
# upstream build process have led to this approach.

# For example, the original upstream source ships the .elc files, but
# we need to re-build them when we patch the corresponding .el files.
# The situation is further complicated by the fact that any of these
# .el files may have macros, and if those are changed, then any other
# .el files that use those macros must also be recompiled.  Over the
# years, we've tried various ways to handle this issue, originally by
# trying to keep track of which files need to be recompiled and only
# recompiling those, then later by just re-building all the .elc files
# with "make bootstrap".  In either case, if you don't want to have
# diff bloat, you have to do something to keep track of the original
# .elc files so you can restore them during make clean.

# All of this was a lot of work, and was using quite a bit of
# unnecessary storage both in the .orig.tar.gz.  To avoid that, and to
# simplify the process, we now just remove the .elc files from the
# upstream distribution whenever we create the debian .orig.tar.gz
# file for a given upstream release.  Since we were always clobbering
# the .elc files during the package build, that was no great loss.

# (You might imagine that a VPATH build would allow us to avoid having
#  to copy the entire source tree for each of the three builds, but it
#  turns out that without additional complexity, VPATH builds will
#  cause diff bloat.  That's because the emacs build process doesn't
#  completely respect the .elc files; some are modified in srcdir, not
#  builddir.)

# Copying the source to a separate build directory and building there
# is much simpler than previous approaches, it makes cleaning trivial,
# and it avoids any diff bloat.

# If the source tree ever ends up in an untenable "can't go forward,
# can't go back" state with respect to patching, you can always start
# over by just moving the current debian directory to a newly unpacked
# orig.tar.gz tree.  Note that if you were in the process of editing a
# patch, you will lose those edits, but you shouldn't lose anything
# else.  This process just reverts all of the upstream files and
# abandons the volatile "what's been done to the current tree" state
# that quilt maintains in ./.pc.  All of the actual patches are stored
# in debian/patches and should be unharmed.

######################################################################
# Important top-level targets:
#
# check-vars - displays how the version number has been parsed.
# buildpackage - build binary packages via dpkg-buildpackage w/suitable args
# prepare-release - prepare and check debs for upload.
#
######################################################################

# The name of the Debian source package
src_name := $(shell $(pf); dpkg-parsechangelog | egrep '^Source:')
src_name := $(shell $(pf); echo $(src_name) | perl -pe 's/Source:\s+//o')

# The version from the changelog (i.e. 20.5-1)
debian_ver := $(shell $(pf); dpkg-parsechangelog | egrep '^Version:')
debian_ver := $(shell $(pf); echo $(debian_ver) | perl -pe 's/Version:\s+//o')
# The Debian revision (i.e. the 1 from 20.5-1)
# Always everything after the last '-'
debian_rev := $(shell $(pf); echo $(debian_ver) | perl -pe 's/.*-//o')

# The official upstream version defined by emacs-version in lisp/version.el.
# The extraction method matches the code in the upstream configure.in.
nominal_ver := \
  $(shell $(pf); grep 'defconst[	 ]*emacs-version' lisp/version.el \
    | sed -e 's/^[^"]*"\([^"]*\)".*$$/\1/')

# This must be the version that's actually used at runtime for things
# like load-path.  It may not be the same as the upstream version
# (i.e. when you have upstream 20.5a, the functional version may still
# be 20.5), so sometimes we may have to do this by hand.
runtime_ver := $(shell $(pf); echo $(nominal_ver) | perl -pe 's/[a-z]+$$//o')

major_ver := $(shell $(pf); echo $(runtime_ver) | perl -pe 's/\..*$$//o')
minor_ver := $(shell $(pf); echo $(runtime_ver) | perl -pe 's/^[^.]*\.//o')

# version for the debian source, i.e. if the upstream is 21.3, this
# might be 21.3, or it might be 21.3+1 if we've had to have more than
# one re-release of the upstream source.  Rare, but it happens...
# Always everything before the last '-'
debsrc_ver := $(shell $(pf); echo $(debian_ver) | perl -pe 's/-[^-]+$$//o')

# upstream version - the actual upstream version, i.e. 21.4a, minus any +foo
upstream_ver := $(shell $(pf); echo $(debsrc_ver) | perl -pe 's/\+[^+]+$$//o')

deb_orig_tgz := $(src_name)_$(debsrc_ver).orig.tar.gz
# name of the orig_tgz unpack directory
deb_orig_tgz_dir := emacs-$(runtime_ver)

######################################################################
# Customizable variables

# The flavor (i.e. emacs21) currently matches the source package name.
flavor := $(src_name)

bin_priority := 26

# This might also be something like 2006-09-09 for snapshots.
menu_ver := $(major_ver)

info_subdir := emacs-$(major_ver)

######################################################################

# Should these be exported like this (as autotools-dev recommends for
# the two vars below) or not?
export DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
export DEB_HOST_GNU_CPU ?= $(shell dpkg-architecture -qDEB_HOST_GNU_CPU)

# As recommended by /usr/share/doc/autotools-dev/README.Debian.gz.
# Handle cross-compiling and don't make ./configure guess.
export DEB_HOST_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
export DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)

# FOR AUTOCONF 2.52 AND NEWER ONLY
ifeq ($(DEB_BUILD_GNU_TYPE), $(DEB_HOST_GNU_TYPE))
  confflags += --build $(DEB_HOST_GNU_TYPE)
else
  confflags += --build $(DEB_BUILD_GNU_TYPE) --host $(DEB_HOST_GNU_TYPE)
endif

deb_host_multiarch := $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)

CFLAGS = `dpkg-buildflags --get CFLAGS`
CFLAGS += -Wall
LDFLAGS = `dpkg-buildflags --get LDFLAGS`
CPPFLAGS = `dpkg-buildflags --get CPPFLAGS`

LDFLAGS   += -g
CFLAGS    += -DDEBIAN

ifeq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
  ifneq (,$(filter $(DEB_HOST_ARCH),m68k ia64))
    # Fix a problem with newer versions of gcc on m68k and ia64.
    # There -O2 causes a build failure (broken byte compiler) - see
    # bugs #207580 and #582439.
    CFLAGS += -O1
  else # neq (m68k or ia64)
    CFLAGS += -O2
  endif # neq (m68k or ia64)
endif # not noopt

joblimit := $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
ifeq (,$(joblimit))
  joblimit := 1
endif

# Force joblimit to 1 until an upstream race condition is fixed:
#   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=592992
joblimit := 1

target := $(DEB_HOST_GNU_TYPE)
movemail_bin := usr/lib/emacs/$(runtime_ver)/$(target)/movemail

# Info files that are going to show up in the main dir.
main_dir_info_files := \
  efaq

# Files that the build stage depends on (may also be listed in other vars).
persistent_autogen_build_files := debian/control debian/copyright
nonpersistent_autogen_build_files :=

# These files must always exist, i.e. can't ever be cleaned.
persistent_autogen_install_files :=

nonpersistent_autogen_install_files := \
  debian/$(flavor)-bin-common.lintian-overrides \
  debian/$(flavor)-bin-common.postinst \
  debian/$(flavor)-bin-common.prerm \
  debian/$(flavor)-common.README.Debian \
  debian/$(flavor)-common.docs \
  debian/$(flavor)-common.lintian-overrides \
  debian/$(flavor)-common.postinst \
  debian/$(flavor)-common.prerm \
  debian/$(flavor)-nox.README.Debian \
  debian/$(flavor)-nox.lintian-overrides \
  debian/$(flavor)-nox.menu \
  debian/$(flavor)-nox.postinst \
  debian/$(flavor)-nox.prerm \
  debian/$(flavor)-lucid.README.Debian \
  debian/$(flavor)-lucid.desktop \
  debian/$(flavor)-lucid.lintian-overrides \
  debian/$(flavor)-lucid.menu \
  debian/$(flavor)-lucid.postinst \
  debian/$(flavor)-lucid.prerm \
  debian/$(flavor).README.Debian \
  debian/$(flavor).desktop \
  debian/$(flavor).menu \
  debian/$(flavor).lintian-overrides \
  debian/$(flavor).postinst \
  debian/$(flavor).prerm

autogen_build_files := \
  $(nonpersistent_autogen_build_files) $(persistent_autogen_build_files)

autogen_install_files := \
  $(nonpersistent_autogen_install_files) $(persistent_autogen_install_files)

persistent_autogen_files := \
  $(persistent_autogen_build_files) $(persistent_autogen_install_files)

nonpersistent_autogen_files := \
  $(nonpersistent_autogen_build_files) $(nonpersistent_autogen_install_files)


# Build directories
pkgdir_common := $(CURDIR)/debian/$(flavor)-common
pkgdir_bin_common := $(CURDIR)/debian/$(flavor)-bin-common
pkgdir_x := $(CURDIR)/debian/$(flavor)
pkgdir_nox := $(CURDIR)/debian/$(flavor)-nox
pkgdir_lucid := $(CURDIR)/debian/$(flavor)-lucid
pkgdir_el := $(CURDIR)/debian/$(flavor)-el

install_dir_x := $(CURDIR)/debian/install-x
install_dir_nox := $(CURDIR)/debian/install-nox
install_dir_lucid := $(CURDIR)/debian/install-lucid

local_lpath := /etc/$(flavor):/etc/emacs
local_lpath := $(local_lpath):/usr/local/share/emacs/$(runtime_ver)/site-lisp
local_lpath := $(local_lpath):/usr/local/share/emacs/site-lisp
local_lpath := $(local_lpath):/usr/share/emacs/$(runtime_ver)/site-lisp
local_lpath := $(local_lpath):/usr/share/emacs/site-lisp

# Installation local_lpath
local_lpath_install \
  := $(pkgdir_common)/$(subst :,:$(pkgdir_common)/,$(local_lpath))

define testdir
  dh_testdir debian/emacsVER.postinst
endef

# If we ever need to do the stripping outside of dh_strip, just add an
# INSTALL_STRIP="-s" to the make vars below.

define emacs_inst
  $(MAKE) -C debian/$(1) install DESTDIR=$(2) \
    infodir=/usr/share/info/emacs-$(major_ver) \
    localstatedir=/var
endef

# If we ever need it, we can create a copy that doesn't assume ./debian/
define deb_sub
  perl -p \
    -e "s|\@PKG_NAME\@|$(pkg_name)|go;" \
    -e "s|\@MAJOR_VERSION\@|$(major_ver)|go;" \
    -e "s|\@MINOR_VERSION\@|$(minor_ver)|go;" \
    -e "s|\@FULL_VERSION\@|$(runtime_ver)|go;" \
    -e "s|\@PACKAGE_VERSION\@|$(debian_ver)|go;" \
    -e "s|\@DEBIAN_REV\@|$(deb_rev)|go;" \
    -e "s|\@NOMINAL_VERSION\@|$(nominal_ver)|go;" \
    -e "s|\@UPSTREAM_VERSION\@|$(upstream_ver)|go;" \
    -e "s|\@DEBSRC_VERSION\@|$(debsrc_ver)|go;" \
    -e "s|\@DEB_FLAVOR\@|$(flavor)|go;" \
    -e "s|\@MENU_VERSION\@|$(menu_ver)|go;" \
    -e "s|\@INFO_FILES\@|$(main_dir_info_files)|go;" \
    -e "s|\@INFO_SUBDIR\@|$(info_subdir)|go;" \
    -e "s|\@X_SUPPORT\@|$(xsupport)|go;" \
    -e "s|\@BIN_PRIORITY\@|$(bin_priority)|go;" \
    -e "s|\@MOVEMAIL_BIN\@|$(movemail_bin)|go;" \
      < $(1) > $(2)
endef

%:
	dh $@ --parallel

check-vars:
	@echo "src_name: $(src_name)"
	@echo "upstream_ver: $(upstream_ver)"
	@echo "debian_ver: $(debian_ver)"
	@echo "debsrc_ver: $(debsrc_ver)"
	@echo "debian_rev: $(debian_rev)"
	@echo "nominal_ver: $(nominal_ver)"
	@echo "runtime_ver: $(runtime_ver)"
	@echo "major_ver: $(major_ver)"
	@echo "minor_ver: $(minor_ver)"
	@echo "movemail_bin: $(movemail_bin)"

define check_diff
  @if $(quilt) series | grep -E '^debian-changes-'; \
  then \
    echo "Diffs found outside ./debian:"; \
    ls debian/patches/debian-changes-*; \
    false; \
  else \
    echo "../$(src_name)_$(debsrc_ver).diff.gz looks OK."; \
  fi
endef

check-diff: clean
	$(testdir)
	cd .. && dpkg-source -b -i "$(basename $(CURDIR))"
	$(check_diff)

buildpackage:
	$(testdir)
	dpkg-buildpackage -D -us -uc -rfakeroot -i
	$(check_diff)

prepare-release:
	$(testdir)
        # don't want to be root -- using fakeroot below.
        # also, stacking fakeroots seems to cause trouble generating diff.
	@test "`whoami`" != root || \
	  (echo "please run prepare-release as a normal user (not root)"; \
	   false)
        # check for any uncommitted changes
	@cd debian; \
	if ! git diff-files --quiet; \
	then \
	  git status; \
	  echo; \
	  read -p "Uncommitted changes.  Continue? [y/n] "; \
          if test "$${REPLY}" != y; \
	  then \
	    false; \
	  fi; \
	fi
        # TODO: make sure we actually installed the binary.
        # TODO: run tests (use a check target?)
	$(MAKE) -f debian/rules buildpackage
	@echo "Everything looks OK.  Ready for release."

debian-sync: $(persistent_autogen_files)
        # so dh pattern rule doesn't try to handle this target
	true

debian/$(flavor).%: xsupport := "x"
debian/$(flavor).%: pkg_name := $(flavor)

debian/$(flavor)-nox.%: xsupport := "nox"
debian/$(flavor)-nox.%: pkg_name := $(flavor)-nox

debian/$(flavor)-lucid.%: xsupport := "lucid"
debian/$(flavor)-lucid.%: pkg_name := $(flavor)-lucid

debian/$(flavor)-common.%: pkg_name := $(flavor)-common
debian/$(flavor)-bin-common.%: pkg_name := $(flavor)-bin-common

debian/%: debian/%.in debian/changelog
	$(call deb_sub,$<,$@)

debian/$(flavor)-bin-common.%: debian/emacsVER-bin-common.% debian/changelog
	$(call deb_sub,$<,$@)

debian/$(flavor)-common.%: debian/emacsVER-common.% debian/changelog
	$(call deb_sub,$<,$@)

debian/$(flavor)-el.%: debian/emacsVER-el.% debian/changelog
	$(call deb_sub,$<,$@)

debian/$(flavor).%: debian/emacsVER.% debian/changelog
	$(call deb_sub,$<,$@)

debian/$(flavor)-nox.%: debian/emacsVER.% debian/changelog
	$(call deb_sub,$<,$@)

debian/$(flavor)-lucid.%: debian/emacsVER.% debian/changelog
	$(call deb_sub,$<,$@)

debian/$(flavor)-common.README.Debian: \
  debian/emacsVER-common.README debian/patches/*.patch debian/patches/series \
  debian/rules debian/patch-to-news
	cd debian && \
	  csplit -s -f emacsVER-common.README. \
	  emacsVER-common.README '/@@PATCH_LIST_HERE@@/'
	cp debian/emacsVER-common.README.00 debian/emacsVER-common.README.tmp
	for p in $$($(quilt) series); do \
	  debian/patch-to-news debian/patches/$$p \
	    >> debian/emacsVER-common.README.tmp; \
	  echo >> debian/emacsVER-common.README.tmp; \
	done
	tail -n +2 \
	  < debian/emacsVER-common.README.01 \
	  >> debian/emacsVER-common.README.tmp
	mv debian/emacsVER-common.README.tmp $@

debian/setup-stamp:
	$(testdir)
	aclocal
	autoconf
	autoheader
	mkdir -p $(dir $@) && touch $@

# common configure flags
confflags += --prefix=/usr
confflags += --sharedstatedir=/var/lib
confflags += --libexecdir=/usr/lib
confflags += --localstatedir=/var/lib
confflags += --infodir=/usr/share/info
confflags += --mandir=/usr/share/man
confflags += --with-pop=yes
confflags += --enable-locallisppath=$(local_lpath)

# multiarch compatibility
confflags += --with-crt-dir=/usr/lib/$(deb_host_multiarch)

# x configure flags
confflags_x := $(confflags) 
confflags_x += --with-x=yes
confflags_x += --with-x-toolkit=gtk
# For those who prefer the old-style non-toolkit scrollbars, just
# change the assignment below to --without-toolkit-scroll-bars.  The
# resulting emacsXY package will have the old scrollbars.
confflags_x += --with-toolkit-scroll-bars

# nox configure flags
confflags_nox := $(confflags) 
confflags_nox += --with-x=no
confflags_nox += --without-gconf

# lucid configure flags
confflags_lucid := $(confflags)
confflags_lucid += --with-x=yes
confflags_lucid += --with-x-toolkit=lucid
confflags_lucid += --with-toolkit-scroll-bars
confflags_lucid += --without-gconf

define cfg_tree
  rm -rf $(1)
  mkdir $(1)
  cp -a $$(ls -A | grep -v '^debian$$' | grep -v '^.pc$$') "$(1)"
  cd $(1) && CFLAGS="$(CFLAGS)" CPPFLAGS="$(CPPFLAGS)" ./configure $(confflags) $(2)
endef

define build_cmd
  $(MAKE) -C $(1) -j $(joblimit) CFLAGS="$(CFLAGS)" CPPFLAGS="$(CPPFLAGS)" LDFLAGS="$(LDFLAGS)"
  # If we don't use bootstrap, we need to explicitly build info.
  $(MAKE) -C $(1) -j $(joblimit) CFLAGS="$(CFLAGS)" CPPFLAGS="$(CPPFLAGS)" LDFLAGS="$(LDFLAGS)" info
endef

override_dh_auto_configure: debian/setup-stamp
        # Can't use dh --with autotools_dev because it only works if
        # you haven't removed the config.sub and config.guess files
        # from the source tree.
	cp -a /usr/share/misc/config.guess .
	cp -a /usr/share/misc/config.sub .
	$(call cfg_tree,debian/build-x,$(confflags_x))
	$(call cfg_tree,debian/build-nox,$(confflags_nox))
	$(call cfg_tree,debian/build-lucid,$(confflags_lucid))

override_dh_auto_build: $(autogen_build_files)
	$(call build_cmd,debian/build-x)
	$(call build_cmd,debian/build-nox)
	$(call build_cmd,debian/build-lucid)

define install_common_binpkg_bits
  # args: (1) srcdir (2) pkgdir (3) pkgname (4) bin-suffix

  install -d $(2)/usr/bin/
  test -f $(1)/usr/bin/emacs-*
  cp -a $(1)/usr/bin/emacs-* $(2)/usr/bin/$(flavor)-$(4)
  dh_link -p$(3) usr/bin/$(flavor)-$(4) usr/bin/$(flavor)

  install -d $(2)/usr/share/emacs/$(runtime_ver)/etc
  cp -a $(1)/usr/share/emacs/$(runtime_ver)/etc/DOC-$(runtime_ver).1 \
	$(2)/usr/share/emacs/$(runtime_ver)/etc/

  install -d $(2)/usr/share/man/man1
  dh_link -p$(3) \
    usr/share/man/man1/emacs.$(flavor).1.gz \
    usr/share/man/man1/$(flavor).1.gz
  dh_link -p$(3) \
    usr/share/man/man1/emacs.$(flavor).1.gz \
    usr/share/man/man1/$(flavor)-$(4).1.gz
endef

override_dh_auto_install: $(autogen_install_files)
	rm -rf \
	  $(install_dir_x) $(install_dir_nox) $(install_dir_lucid) \
	  $(pkgdir_common)/* \
	  $(pkgdir_bin_common)/* \
	  $(pkgdir_x)/* \
	  $(pkgdir_nox)/* \
	  $(pkgdir_lucid)/* \
	  $(pkgdir_el)/*

	$(call emacs_inst,build-x,$(install_dir_x))

        ##################################################
        # emacsXY-common
        ifneq (,$(findstring $(flavor)-common, $(shell dh_listpackages)))
	  install -d $(pkgdir_common)
	  cp -a $(install_dir_x)/* $(pkgdir_common)

	  rm -r $(pkgdir_common)/usr/bin
	  rm -r $(pkgdir_common)/usr/lib

	  cd $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/etc \
	    && test -f DOC-$(runtime_ver).*
	  cd $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/etc \
	    && rm DOC-$(runtime_ver).*

	  # lisp path directories
	  install -d $(pkgdir_common)/etc/$(flavor)/site-start.d
	  install -d $(pkgdir_common)/usr/share/$(flavor)

	  # The version-specific site-lisp dir, say emacs/21.1/site-lisp, needs
	  # to be in share/FLAVOR so that as we upgrade from 21.1 to 21.2,
	  # etc., add-on package bits don't get left behind.
	  mv $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/site-lisp \
		  $(pkgdir_common)/usr/share/$(flavor)
	  dh_link -p$(flavor)-common usr/share/$(flavor)/site-lisp \
			  usr/share/emacs/$(runtime_ver)/site-lisp

	  # This is a duplicate of the file in FLAVOR/site-lisp
	  rm $(pkgdir_common)/usr/share/emacs/site-lisp/subdirs.el

	  cd $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/etc/images/icons \
	    && convert hicolor/16x16/apps/emacs.{png,xpm}
	  cd $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/etc/images/icons \
	    && convert hicolor/32x32/apps/emacs.{png,xpm}

	  # Fixup image files in unversioned directories (remove old
	  # images, version unversioned images) and prepare for
	  # update-alternatives.
	  rm $(pkgdir_common)/usr/share/icons/hicolor/16x16/apps/emacs22.png
	  rm $(pkgdir_common)/usr/share/icons/hicolor/24x24/apps/emacs22.png
	  rm $(pkgdir_common)/usr/share/icons/hicolor/48x48/apps/emacs22.png

	  cd $(pkgdir_common)/usr/share/icons/hicolor \
	    && mv scalable/apps/emacs.svg scalable/apps/${flavor}.svg \
	    && mv 16x16/apps/emacs.png 16x16/apps/${flavor}.png \
	    && mv 24x24/apps/emacs.png 24x24/apps/${flavor}.png \
	    && mv 32x32/apps/emacs.png 32x32/apps/${flavor}.png \
	    && mv 48x48/apps/emacs.png 48x48/apps/${flavor}.png \
	    && mv 128x128/apps/emacs.png 128x128/apps/${flavor}.png

	  cd $(pkgdir_common)/usr/share/icons/hicolor/scalable/mimetypes \
	    && mv emacs-document.svg ${flavor}-document.svg

	  # Remove redundant emacs.desktop file.
	  rm $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/etc/emacs.desktop
	  rm $(pkgdir_common)/usr/share/applications/emacs.desktop

	  # Mangle info files.
	  chmod 755 debian/mangle-info
	  for f in $(main_dir_info_files); \
	  do \
	    DEBIAN_INFO_PREFIX=$(info_subdir) \
	      debian/mangle-info \
		$(pkgdir_common)/usr/share/info/$(info_subdir)/$$f; \
	  done

	  perl -pi -e "s|man1/etags\\.1|man1/etags\\.$(flavor)\\.1|" \
	    $(pkgdir_common)/usr/share/man/man1/ctags.1

	  cd $(pkgdir_common)/usr/share/man/man1/ && \
	    for f in *.1; do mv $$f $$(basename $${f} .1).$(flavor).1; done

	  # At least etc/COPYING is needed by M-x describe-copying.
	  rm $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/etc/COPYING
	  rm $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/lisp/COPYING
	  dh_link -p$(flavor)-common /usr/share/common-licenses/GPL-3 \
	    usr/share/emacs/$(runtime_ver)/etc/COPYING
	  dh_link -p$(flavor)-common /usr/share/common-licenses/GPL-3 \
	    usr/share/emacs/$(runtime_ver)/lisp/COPYING

	  # Install replacements for non-free files that can be reached
	  # through C-h
	  for f in THE-GNU-PROJECT; \
	  do \
	    sed \
	      -e "s/@FILE@/$$f/g" \
	      -e "s/@MAJOR_VERSION@/$(major_ver)/g" \
	      $(CURDIR)/debian/missing-file.dfsg > \
	      $(pkgdir_common)/usr/share/emacs/$(runtime_ver)/etc/$$f.dfsg ; \
	  done

	  $(pf); cd $(pkgdir_common) && \
	    find -name "*.elc" | perl -pe 's/\.elc$$/\.el/o' | xargs rm -f

	  $(pf); cd $(pkgdir_common) && \
	    find -name "*.elc" | perl -pe 's/\.elc$$/\.el\.gz/o' | xargs rm -f

	  # Remove extraneous info dir files.  These may not exist if dpkg
	  # is 1.5.4 or newer.
	  rm -f $(pkgdir_common)/usr/share/info/emacs-$(major_ver)/dir
	  rm -f $(pkgdir_common)/usr/share/info/emacs-$(major_ver)/dir.old

	  # Remove the shared game score directory as a simple way to
	  # avoid a conflict with other flavors of Emacs.  Since
	  # Debian's update-game-score binary isn't setuid, that
	  # directory is never used.
	  rm $(pkgdir_common)/var/games/emacs/tetris-scores
	  rm $(pkgdir_common)/var/games/emacs/snake-scores
	  rmdir $(pkgdir_common)/var/games/emacs/
	  rmdir $(pkgdir_common)/var/games/
	  rmdir $(pkgdir_common)/var/

	  # Make sure /usr/local dir doesn't exist.
	  rm -r $(pkgdir_common)/usr/local
        endif

        ##################################################
        # emacsXY-bin-common
        ifneq (,$(findstring $(flavor)-bin-common, $(shell dh_listpackages)))
	  # Move common binaries to emacs-bin-common.
	  install -d $(pkgdir_bin_common)/usr
	  cp -a $(install_dir_x)/usr/bin $(pkgdir_bin_common)/usr
	  cp -a $(install_dir_x)/usr/lib $(pkgdir_bin_common)/usr

	  # Make sure there's just one.
	  test -f $(pkgdir_bin_common)/usr/bin/emacs-*
	  rm $(pkgdir_bin_common)/usr/bin/{emacs,emacs-*}

	  # Set up movemail.
	  chown root.mail $(pkgdir_bin_common)/$(movemail_bin)
	  chmod g+s $(pkgdir_bin_common)/$(movemail_bin)

	  # Set up alternatives.
	  alternatives=`ls $(pkgdir_bin_common)/usr/bin | xargs` && \
	    set -x && \
	    for f in debian/$(flavor)-bin-common.*; \
	    do \
	      perl -pwi -e "s|\@ALTERNATIVES\@|$${alternatives}|go" $$f ; \
	    done

	  for f in `ls $(pkgdir_bin_common)/usr/bin`; \
	  do \
	    mv $(pkgdir_bin_common)/usr/bin/$$f \
	       $(pkgdir_bin_common)/usr/bin/$$f.$(flavor) ; \
	  done
        endif

        ##################################################
        # emacsXY
        ifneq (,$(findstring $(flavor), $(shell dh_listpackages)))
	  $(call install_common_binpkg_bits,\
	    $(install_dir_x),$(pkgdir_x),$(flavor),x)

          # install desktop entry
	  install -d $(pkgdir_x)/usr/share/applications
	  install -m 0644 \
	    debian/$(flavor).desktop $(pkgdir_x)/usr/share/applications/
        endif

        ##################################################
        # emacsXY-nox
        ifneq (,$(findstring $(flavor)-nox, $(shell dh_listpackages)))
	  $(call emacs_inst,build-nox,$(install_dir_nox))
	  $(call install_common_binpkg_bits,\
	    $(install_dir_nox),$(pkgdir_nox),$(flavor)-nox,nox)
	  rm -rf $(install_dir_nox)
        endif

        ##################################################
        # emacsXY-lucid
        ifneq (,$(findstring $(flavor)-lucid, $(shell dh_listpackages)))
	  $(call emacs_inst,build-lucid,$(install_dir_lucid))
	  $(call install_common_binpkg_bits,\
	    $(install_dir_lucid),$(pkgdir_lucid),$(flavor)-lucid,lucid)

          # install desktop entry
	  install -d $(pkgdir_lucid)/usr/share/applications
	  install -m 0644 \
	    debian/$(flavor)-lucid.desktop \
	    $(pkgdir_lucid)/usr/share/applications/
	  rm -rf $(install_dir_lucid)
        endif

        ##################################################
        # emacsXY-el
        ifneq (,$(findstring $(flavor)-el, $(shell dh_listpackages)))
	  $(pf); \
	  (cd $(install_dir_x) && find -name "*.el" -o -name "*.el.gz" -print0 \
	   | tar cpf - --null --files-from -) \
	     | (cd $(pkgdir_el) && tar xpf -)
        endif

        ##################################################
        # final cleanup
	rm -rf $(install_dir_x)
	rm -rf $(install_dir_nox)
	rm -rf $(install_dir_lucid)

override_dh_testdir:
	$(testdir)

override_dh_fixperms:
	dh_fixperms -X$(movemail_bin)

override_dh_clean: $(persistent_autogen_files)
	rm -rf \
	  debian/build-x \
	  debian/install-x \
	  debian/build-nox \
	  debian/install-nox \
	  debian/build-lucid \
	  debian/install-lucid \
	  debian/*-stamp \
	  config.guess \
	  config.sub \
	  configure \
	  src/config.in
	rm -f $(nonpersistent_autogen_files)
	dh_clean