Makefile.in 42.4 KB
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### @configure_input@
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# Copyright (C) 1992-2014 Free Software Foundation, Inc.
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# 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.

### Commentary:

# 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 maintainer-clean
#      Delete everything from the current directory that can be
#      reconstructed with this Makefile.  This typically includes
#      everything deleted by distclean, plus more: .elc files,
#      C source files produced by Bison, tags tables, info files,
#      and so on.
#
# make extraclean
#      Still more severe - delete backup and autosave files, too.
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#      Also generated files that do not normally change and can be slow
#      to rebuild (eg leim/ja-dic).
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#
# make bootstrap
#      Removes all the compiled files to force a new bootstrap from a
#      clean slate, and then build in the normal way.
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#
# make docs
#      Make Emacs documentation files from their sources; requires makeinfo.
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SHELL = @SHELL@
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# This only matters when inheriting a CDPATH not starting with the
# current directory.
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CDPATH=

# If Make doesn't predefine MAKE, set it here.
@SET_MAKE@

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# Prevent submakes from outputting "Entering directory ..." and
# "Leaving directory..." diagnostics that would mess up 'make echo-info'.
QUIET_SUBMAKE = MAKELEVEL=0

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# ==================== Things `configure' Might Edit ====================

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cache_file = @cache_file@
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CONFIGURE_FLAGS = --cache-file=$(cache_file)
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CC=@CC@
CFLAGS=@CFLAGS@
LDFLAGS=@LDFLAGS@
CPPFLAGS=@CPPFLAGS@
EXEEXT=@EXEEXT@

### These help us choose version- and architecture-specific directories
### to install files in.

### This should be the number of the Emacs version we're building,
### like `18.59' or `19.0'.
version=@version@

### This should be the name of the configuration we're building Emacs
### for, like `mips-dec-ultrix' or `sparc-sun-sunos'.
configuration=@configuration@

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### The nt/ subdirectory gets built only for MinGW
NTDIR=@NTDIR@

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# ==================== Where To Install Things ====================

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# Location to install Emacs.app under GNUstep / Mac OS X.
# Later values may use these.
ns_appbindir=@ns_appbindir@
ns_appresdir=@ns_appresdir@
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# Either yes or no depending on whether this is a relocatable Emacs.app.
ns_self_contained=@ns_self_contained@
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# The default location for installation.  Everything is placed in
# subdirectories of this directory.  The default values for many of
# the variables below are expressed in terms of this one, so you may
# not need to change them.  This defaults to /usr/local.
prefix=@prefix@

# Like `prefix', but used for architecture-specific files.
exec_prefix=@exec_prefix@

# Where to install Emacs and other binaries that people will want to
# run directly (like etags).
bindir=@bindir@

# The root of the directory tree for read-only architecture-independent
# data files.  ${datadir}, ${infodir} and ${mandir} are based on this.
datarootdir=@datarootdir@

# Where to install architecture-independent data files.	 ${lispdir}
# and ${etcdir} are subdirectories of this.
datadir=@datadir@

# Where to install and expect the files that Emacs modifies as it
# runs.  These files are all architecture-independent.
# Right now, this is not used.
sharedstatedir=@sharedstatedir@

# Where to install and expect executable files to be run by Emacs
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# rather than directly by users (and other architecture-dependent
# data, although Emacs does not have any).  The executables
# are actually installed in ${archlibdir}, which is (normally)
# a subdirectory of this.
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libexecdir=@libexecdir@

# Where to install Emacs's man pages.
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# Note they contain cross-references that expect them to be in section 1.
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mandir=@mandir@
man1dir=$(mandir)/man1

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# Where to install and expect the info files describing Emacs.
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infodir=@infodir@
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# Info files not in the doc/misc directory (we get those via make echo-info).
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INFO_EXT=@INFO_EXT@
INFO_NONMISC=emacs$(INFO_EXT) eintr$(INFO_EXT) elisp$(INFO_EXT)
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# If no makeinfo was found and configured --without-makeinfo, "no"; else "yes".
HAVE_MAKEINFO=@HAVE_MAKEINFO@

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# Directory for local state files for all programs.
localstatedir=@localstatedir@

# Where to look for bitmap files.
bitmapdir=@bitmapdir@

# Where to find the source code.  The source code for Emacs's C kernel is
# expected to be in ${srcdir}/src, and the source code for Emacs's
# utility programs is expected to be in ${srcdir}/lib-src.  This is
# set by the configure script's `--srcdir' option.

# We use $(srcdir) explicitly in dependencies so as not to depend on VPATH.
srcdir=@srcdir@
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abs_srcdir=@abs_srcdir@
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# MinGW CPPFLAGS may use this.
abs_top_srcdir=@abs_top_srcdir@
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# Where the manpage source files are kept.
mansrcdir=$(srcdir)/doc/man

# Tell make where to find source files; this is needed for the makefiles.
VPATH=@srcdir@

# Where to find the application default.
x_default_search_path=@x_default_search_path@

# Where the etc/emacs.desktop file is to be installed.
desktopdir=$(datarootdir)/applications

# Where the etc/images/icons/hicolor directory is to be installed.
icondir=$(datarootdir)/icons

# The source directory for the icon files.
iconsrcdir=$(srcdir)/etc/images/icons

# ==================== Emacs-specific directories ====================

# These variables hold the values Emacs will actually use.  They are
# based on the values of the standard Make variables above.

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# Where to install the lisp files distributed with Emacs.
# This includes the Emacs version, so that the lisp files for different
# versions of Emacs will install themselves in separate directories.
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lispdir=@lispdir@

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# Directories Emacs should search for standard lisp files.
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# The default is ${lispdir}.
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standardlisppath=@standardlisppath@

# Directories Emacs should search for lisp files specific to this
# site (i.e. customizations), before consulting ${standardlisppath}.
# This should be a colon-separated list of directories.
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locallisppath=@locallisppath@

# Where Emacs will search to find its lisp files.  Before
# changing this, check to see if your purpose wouldn't
# better be served by changing locallisppath.  This
# should be a colon-separated list of directories.
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# The default is ${locallisppath}:${standardlisppath}.
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lisppath=@lisppath@

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# Where Emacs will search for its lisp files while building.
# This is only used during the process of compiling Emacs,
# to help Emacs find its lisp files before they've been installed
# in their final location.
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# This should be a colon-separated list of directories.
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# Normally it points to the lisp/ directory in the sources.
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# NB lread.c relies on lisp/ being first here.
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buildlisppath=${abs_srcdir}/lisp
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# Where to install the other architecture-independent
# data files distributed with Emacs (like the tutorial,
# the cookie recipes and the Zippy database). This path
# usually contains the Emacs version number, so the data
# files for multiple versions of Emacs may be installed
# at once.
etcdir=@etcdir@

# Where to put executables to be run by Emacs rather than
# the user.  This path usually includes the Emacs version
# and configuration name, so that multiple configurations
# for multiple versions of Emacs may be installed at
# once.
archlibdir=@archlibdir@

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# Where to put the etc/DOC file.
etcdocdir=@etcdocdir@
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# Where to install Emacs game score files.
gamedir=@gamedir@

# ==================== Utility Programs for the Build ====================

# Allow the user to specify the install program.
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# Note that if the system does not provide a suitable install,
# configure will use build-aux/install-sh.  Annoyingly, it does
# not use an absolute path.  So we must take care to always run
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# INSTALL-type commands from the directory containing the Makefile.
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# This explains (I think) the cd thisdir seen in several install rules.
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INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
INSTALL_INFO = @INSTALL_INFO@
# By default, we uphold the dignity of our programs.
INSTALL_STRIP =
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MKDIR_P = @MKDIR_P@
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# Create a link to a file in the same directory as the target.
LN_S_FILEONLY = @LN_S_FILEONLY@
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# We use gzip to compress installed .el files.
GZIP_PROG = @GZIP_PROG@

# ============================= Targets ==============================

# Program name transformation.
TRANSFORM = @program_transform_name@

# What emacs should be called when installed.
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EMACS_NAME = `echo emacs | sed '$(TRANSFORM)'`
EMACS = ${EMACS_NAME}${EXEEXT}
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EMACSFULL = `echo emacs-${version} | sed '$(TRANSFORM)'`${EXEEXT}
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# Subdirectories to make recursively.
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SUBDIR = $(NTDIR) lib lib-src src lisp
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# The subdir makefiles created by config.status.
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SUBDIR_MAKEFILES_IN = @SUBDIR_MAKEFILES_IN@
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SUBDIR_MAKEFILES = `echo $(SUBDIR_MAKEFILES_IN:.in=) | sed 's|$(srcdir)/||g'`
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# Subdirectories to install, and where they'll go.  lib-src's and nt's
# makefiles know how to install them, so we don't do that here.
# Directories that cannot simply be copied, eg info, are treated
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# separately.
COPYDIR = ${srcdir}/etc ${srcdir}/lisp
COPYDESTS = "$(DESTDIR)${etcdir}" "$(DESTDIR)${lispdir}"
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all: ${SUBDIR} info
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.PHONY: all ${SUBDIR} blessmail epaths-force epaths-force-w32
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removenullpaths=sed -e 's/^:*//' -e 's/:*$$//g' -e 's/::*/:/g'
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# Generate epaths.h from epaths.in.  This target is invoked by `configure'.
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# See comments in configure.ac for why it is done this way, as opposed
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# to just letting configure generate epaths.h from epaths.in in a
# similar way to how Makefile is made from Makefile.in.
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epaths-force:
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	@(standardlisppath=`echo "${standardlisppath}" | ${removenullpaths}` ; \
	  locallisppath=`echo "${locallisppath}" | ${removenullpaths}` ; \
	  buildlisppath=`echo "${buildlisppath}" | ${removenullpaths}` ; \
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	  x_default_search_path=`echo ${x_default_search_path}`; \
	  gamedir=`echo ${gamedir}`; \
	  sed < ${srcdir}/src/epaths.in > epaths.h.$$$$		\
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	  -e 's;\(#.*PATH_LOADSEARCH\).*$$;\1 "'"$${standardlisppath}"'";' \
	  -e 's;\(#.*PATH_SITELOADSEARCH\).*$$;\1 "'"$${locallisppath}"'";' \
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	  -e 's;\(#.*PATH_DUMPLOADSEARCH\).*$$;\1 "'"$${buildlisppath}"'";' \
	  -e 's;\(#.*PATH_EXEC\).*$$;\1 "${archlibdir}";'		\
	  -e 's;\(#.*PATH_INFO\).*$$;\1 "${infodir}";'			\
	  -e 's;\(#.*PATH_DATA\).*$$;\1 "${etcdir}";'			\
	  -e 's;\(#.*PATH_BITMAPS\).*$$;\1 "${bitmapdir}";'		\
	  -e 's;\(#.*PATH_X_DEFAULTS\).*$$;\1 "${x_default_search_path}";' \
	  -e 's;\(#.*PATH_GAME\).*$$;\1 "${gamedir}";' \
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	  -e 's;\(#.*PATH_DOC\).*$$;\1 "${etcdocdir}";') &&		\
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	${srcdir}/build-aux/move-if-change epaths.h.$$$$ src/epaths.h
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# Replace "${w32prefix}" with '%emacs_dir%' (which expands to install
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# directory at runtime).
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msys_w32prefix_subst=sed -e 's!\(^\|;\)'"$${w32prefixpattern}"'\([;/]\|$$\)!\1%emacs_dir%\2!g'
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# Quote Sed special characters (except backslash and newline) with
# a double backslash.
msys_sed_sh_escape=sed -e 's/[];$$*.^[]/\\\\&/g'
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# The w32 build needs a slightly different editing, and it uses
# nt/epaths.nt as the template.
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#
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# Use the value of ${locallisppath} supplied by `configure',
# to support the --enable-locallisppath argument.
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#
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# In this case, the paths written to 'src/epaths.h' must be in native
# MS-Windows format (e.g. 'c:/foo/bar'), because temacs is a MinGW
# program that doesn't support MSYS-style paths (e.g. '/c/foo/bar' or
# '/foo/bar').
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epaths-force-w32:
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	@(w32srcdir=`${srcdir}/build-aux/msys-to-w32 "${srcdir}"`; \
	  w32prefix=`${srcdir}/build-aux/msys-to-w32 "${prefix}" N`; \
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	  w32prefixpattern=`echo "$${w32prefix}" | ${msys_sed_sh_escape}` ; \
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	  w32locallisppath=`${srcdir}/build-aux/msys-to-w32 "${locallisppath}" N ":" "\\;" | ${msys_w32prefix_subst}` ; \
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	  sed < ${srcdir}/nt/epaths.nt > epaths.h.$$$$		\
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	  -e 's;\(#.*PATH_SITELOADSEARCH\).*$$;\1 "'"$${w32locallisppath}"'";' \
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	  -e '/^.*#/s/@VER@/${version}/g' 			\
	  -e '/^.*#/s/@CFG@/${configuration}/g' 		\
	  -e "/^.*#/s|@SRC@|$${w32srcdir}|g") &&		\
	${srcdir}/build-aux/move-if-change epaths.h.$$$$ src/epaths.h

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# If lib/Makefile would build files in '.', then build them before
# building 'lib', to avoid races with parallel makes.
lib: am--refresh

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lib-src src: $(NTDIR) lib
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src: lib-src
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# We need to build `emacs' in `src' to compile the *.elc files in `lisp'.
lisp: src
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# These targets should be "${SUBDIR} without `src'".
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lib lib-src lisp nt: Makefile
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	cd $@ && $(MAKE) all $(MFLAGS)                         \
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	  CC='${CC}' CFLAGS='${CFLAGS}' CPPFLAGS='${CPPFLAGS}' \
	  LDFLAGS='${LDFLAGS}' MAKE='${MAKE}'

# Pass to src/Makefile.in an additional BOOTSTRAPEMACS variable which
# is either set to bootstrap-emacs (in case bootstrap-emacs has not been
# constructed yet) or the empty string (otherwise).
# src/Makefile.in uses it to implement conditional dependencies, so that
# files that need bootstrap-emacs to be built do not additionally need
# to be kept fresher than bootstrap-emacs.  Otherwise changing a single
# file src/foo.c forces dumping a new bootstrap-emacs, then re-byte-compiling
# all preloaded elisp files, and only then dump the actual src/emacs, which
# is not wrong, but is overkill in 99.99% of the cases.
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#
# Note the use of single quotes in the value of vcswitness.
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# This passes an unexpanded $srcdir to src's Makefile, which then
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# expands it using its own value of srcdir (which points to the
# source directory of src/).
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src: Makefile
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	dirstate='.bzr/checkout/dirstate';				\
	vcswitness='$$(srcdir)/../'$$dirstate;				\
	[ -r "$(srcdir)/$$dirstate" ] || vcswitness='';			\
	cd $@ || exit;							\
	boot=bootstrap-emacs$(EXEEXT);					\
	[ ! -x "$$boot" ] || boot='';					\
	$(MAKE) all $(MFLAGS)						\
	  CC='${CC}' CFLAGS='${CFLAGS}' CPPFLAGS='${CPPFLAGS}'		\
	  LDFLAGS='${LDFLAGS}' MAKE='${MAKE}' BOOTSTRAPEMACS="$$boot"	\
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	  VCSWITNESS="$$vcswitness"

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blessmail: Makefile src
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	cd lib-src && $(MAKE) maybe-blessmail $(MFLAGS) \
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	  MAKE='${MAKE}' archlibdir='$(archlibdir)'

# We used to have one rule per */Makefile.in, but that leads to race
# conditions with parallel makes, so let's assume that the time stamp on
# ./Makefile is representative of the time stamp on all the other Makefiles.
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#
# config.status overrides MAKEFILE_NAME with a bogus name when creating
# src/epaths.h, so that 'make epaths-force' does not recursively invoke
# config.status and overwrite config.status while executing it (Bug#11214).
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#
# 'make bootstrap' overrides MAKEFILE_NAME to a nonexistent file but
# then attempts to build that file.  This forces 'Makefile', 'lib/Makefile',
# etc. to be built without running into similar recursion problems.
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MAKEFILE_NAME = Makefile
$(MAKEFILE_NAME): config.status $(srcdir)/src/config.in \
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          $(srcdir)/Makefile.in $(SUBDIR_MAKEFILES_IN) $(srcdir)/src/lisp.mk
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	MAKE='$(MAKE)' ./config.status
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# Don't erase these files if make is interrupted while refreshing them.
.PRECIOUS: Makefile config.status
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config.status: ${srcdir}/configure ${srcdir}/lisp/version.el
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	if [ -x ./config.status ]; then	\
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	    $(CFG) ./config.status --recheck;	\
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	else				\
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	    $(CFG) $(srcdir)/configure $(CONFIGURE_FLAGS); \
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	fi
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AUTOCONF_INPUTS = $(srcdir)/configure.ac $(srcdir)/aclocal.m4
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$(srcdir)/configure: $(AUTOCONF_INPUTS)
	cd ${srcdir} && autoconf

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ACLOCAL_PATH = @ACLOCAL_PATH@
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ACLOCAL_INPUTS = $(srcdir)/configure.ac $(srcdir)/m4/gnulib-comp.m4
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$(srcdir)/aclocal.m4: $(ACLOCAL_INPUTS)
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	cd $(srcdir) && ACLOCAL_PATH='$(ACLOCAL_PATH)' aclocal -I m4
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AUTOMAKE_INPUTS = $(srcdir)/aclocal.m4 $(srcdir)/lib/Makefile.am \
  $(srcdir)/lib/gnulib.mk
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$(srcdir)/lib/Makefile.in: $(AUTOMAKE_INPUTS)
	cd $(srcdir) && automake --gnu -a -c lib/Makefile
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# Regenerate files that this makefile would have made, if this makefile
# had been built by Automake.  The name 'am--refresh' is for
# compatibility with subsidiary Automake-generated makefiles.
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am--refresh: $(srcdir)/aclocal.m4 $(srcdir)/configure $(srcdir)/src/config.in
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.PHONY: am--refresh
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$(srcdir)/src/config.in: $(srcdir)/src/stamp-h.in
	@ # Usually, there's no need to rebuild src/config.in just
	@ # because stamp-h.in has changed (since building stamp-h.in
	@ # refreshes config.in as well), but if config.in is missing
	@ # then we really need to do something more.
	[ -r "$@" ] || ( cd ${srcdir} && autoheader )
$(srcdir)/src/stamp-h.in: $(AUTOCONF_INPUTS)
	cd ${srcdir} && autoheader
	rm -f $(srcdir)/src/stamp-h.in
	echo timestamp > $(srcdir)/src/stamp-h.in

# ==================== Installation ====================

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.PHONY: install install-arch-dep install-arch-indep install-etcdoc install-info
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.PHONY: install-man install-etc install-strip install-$(NTDIR)
.PHONY: uninstall uninstall-$(NTDIR)
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## If we let lib-src do its own installation, that means we
## don't have to duplicate the list of utilities to install in
## this Makefile as well.

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install: all install-arch-indep install-etcdoc install-arch-dep install-$(NTDIR) blessmail
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	@true

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## Ensure that $subdir contains a subdirs.el file.
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## Here and elsewhere, we set the umask so that any created files are
## world-readable.
## TODO it might be good to warn about non-standard permissions of
## pre-existing directories, but that does not seem easy.
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write_subdir=if [ -f "$${subdir}/subdirs.el" ]; \
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	then true; \
	else \
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	  umask 022; \
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	  ${MKDIR_P} "$${subdir}"; \
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	  (echo "(if (fboundp 'normal-top-level-add-subdirs-to-load-path)"; \
	   echo "    (normal-top-level-add-subdirs-to-load-path))") \
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	    > "$${subdir}/subdirs.el"; \
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	fi
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### Install the executables that were compiled specifically for this machine.
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### We do install-arch-indep first because the executable needs the
### Lisp files and DOC file to work properly.
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install-arch-dep: src install-arch-indep install-etcdoc install-$(NTDIR)
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	umask 022; ${MKDIR_P} "$(DESTDIR)${bindir}"
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	cd lib-src && \
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	  $(MAKE) install $(MFLAGS) prefix="${prefix}" \
	    exec_prefix="${exec_prefix}" bindir="${bindir}" \
	    libexecdir="${libexecdir}" archlibdir="${archlibdir}" \
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	    INSTALL_STRIP=${INSTALL_STRIP}
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	if test "${ns_self_contained}" = "no"; then \
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	  ${INSTALL_PROGRAM} $(INSTALL_STRIP) src/emacs${EXEEXT} "$(DESTDIR)${bindir}/$(EMACSFULL)" || exit 1 ; \
	  chmod 1755 "$(DESTDIR)${bindir}/$(EMACSFULL)" || true; \
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	  if test "x${NO_BIN_LINK}" = x; then \
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	    rm -f "$(DESTDIR)${bindir}/$(EMACS)" ; \
	    cd "$(DESTDIR)${bindir}" && $(LN_S_FILEONLY) $(EMACSFULL) $(EMACS); \
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	  fi; \
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	else \
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	  subdir=${ns_appresdir}/site-lisp; \
	  ${write_subdir} || exit 1; \
	  rm -rf ${ns_appresdir}/share; \
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	fi
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### Windows-specific install target for installing programs produced
### in nt/, and its Posix do-nothing shadow.
install-:
install-nt:
	cd $(NTDIR) && \
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	  $(MAKE) install $(MFLAGS) prefix="${prefix}" \
	    exec_prefix="${exec_prefix}" bindir="${bindir}" \
	    libexecdir="${libexecdir}" archlibdir="${archlibdir}" \
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	    datadir="${datadir}" \
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	    INSTALL_STRIP=${INSTALL_STRIP}
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## In the share directory, we are deleting:
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## applications (with emacs.desktop, also found in etc/)
## emacs (basically empty except for unneeded site-lisp directories)
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## icons (duplicates etc/images/icons/hicolor)

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## This is install-etc for everything except self-contained-ns builds.
## For them, it is empty.
INSTALL_ARCH_INDEP_EXTRA = @INSTALL_ARCH_INDEP_EXTRA@

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## http://lists.gnu.org/archive/html/emacs-devel/2007-10/msg01672.html
## Needs to be the user running install, so configure can't set it.
set_installuser=for installuser in $${LOGNAME} $${USERNAME} $${USER} \
	  `id -un 2> /dev/null`; do \
	  [ -n "$${installuser}" ] && break ; \
	done

### Install the files that are machine-independent.
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### Most of them come straight from the distribution; the exception is
### the DOC file, which is copied from the build directory.
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## We delete each directory in ${COPYDESTS} before we copy into it;
## that way, we can reinstall over directories that have been put in
## place with their files read-only (perhaps because they are checked
## into RCS).  In order to make this safe, we make sure that the
## source exists and is distinct from the destination.
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## We delete etc/DOC* because there may be irrelevant DOC files from
## other builds in the source directory.  This is ok because we just
## deleted the entire installed etc/ directory and recreated it.
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## install-etcdoc installs the relevant DOC.
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## Note that we install etc/refcards/*.ps if present.
## TODO we should compress these if GZIP_PROG is set.
## It would be simpler to have a separate install rule for etc/refcards
## (maybe move it to doc/refcards?).

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## Note that the Makefiles in the etc directory are potentially useful
## in an installed Emacs, so should not be excluded.

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## We always create the _default_ locallisppath directories, and
## ensure that they contain a subdirs.el file (via write_subdir).
## This is true even if locallisppath has a non-default value.
## In case of non-default value, we used to create the specified directories,
## but not add subdirs.el to them.  This was a strange halfway house.
## Nowadays we do not create non-default directories.
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## Note that we use tar instead of plain old cp -R/-r because the latter
## is apparently not portable (even in 2012!).
## http://lists.gnu.org/archive/html/emacs-devel/2012-05/msg00278.html
## I have no idea which platforms Emacs supports where cp -R does not
## work correctly, and therefore no idea when tar can be replaced.
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## See also these comments from 2004 about cp -r working fine:
## http://lists.gnu.org/archive/html/autoconf-patches/2004-11/msg00005.html
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install-arch-indep: lisp install-info install-man ${INSTALL_ARCH_INDEP_EXTRA}
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	-set ${COPYDESTS} ; \
	unset CDPATH; \
	$(set_installuser); \
	for dir in ${COPYDIR} ; do \
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	  [ -d $${dir} ] || exit 1 ; \
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	  dest="$$1" ; shift ; \
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	  if [ -d "$${dest}" ]; then \
	    exp_dest=`cd "$${dest}" && /bin/pwd`; \
	    [ "$$exp_dest" = "`cd $${dir} && /bin/pwd`" ] && continue ; \
	  else true; \
	  fi; \
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	  rm -rf "$${dest}" ; \
	  umask 022; ${MKDIR_P} "$${dest}" ; \
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	  echo "Copying $${dir} to $${dest}..." ; \
	  (cd $${dir}; tar -chf - . ) \
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	    | (cd "$${dest}"; umask 022; \
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	       tar -xvf - && cat > /dev/null) || exit 1; \
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	  if [ "$${dir}" = "${srcdir}/etc" ]; then \
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	      rm -f "$${dest}/DOC"* ; \
	      rm -f "$${dest}/refcards"/*.aux "$${dest}/refcards"/*.dvi; \
	      rm -f "$${dest}/refcards"/*.log; \
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	  else true; \
	  fi; \
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	  (cd "$${dest}" || exit 1; \
	    for subdir in `find . -type d -print` ; do \
	      chmod a+rx $${subdir} ; \
	      rm -f $${subdir}/.gitignore ; \
	      rm -f $${subdir}/.arch-inventory ; \
	      rm -f $${subdir}/.DS_Store ; \
	      rm -f $${subdir}/\#* ; \
	      rm -f $${subdir}/.\#* ; \
	      rm -f $${subdir}/*~ ; \
	      rm -f $${subdir}/*.orig ; \
	      rm -f $${subdir}/ChangeLog* ; \
	      [ "$${dir}" != "${srcdir}/etc" ] && \
	        rm -f $${subdir}/[mM]akefile*[.-]in $${subdir}/[mM]akefile ; \
	    done ); \
	  find "$${dest}" -exec chown $${installuser} {} ';' ;\
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	done
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	-rm -f "$(DESTDIR)${lispdir}/subdirs.el"
	umask 022; $(srcdir)/build-aux/update-subdirs "$(DESTDIR)${lispdir}"
	subdir="$(DESTDIR)${datadir}/emacs/${version}/site-lisp" ; \
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	  ${write_subdir}
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	subdir="$(DESTDIR)${datadir}/emacs/site-lisp" ; \
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	  ${write_subdir} || true
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	[ -z "${GZIP_PROG}" ] || { \
	  echo "Compressing *.el ..." && \
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	  cd "$(DESTDIR)${lispdir}" && \
	  find . -name '*.elc' -exec $(SHELL) -c \
	    '${GZIP_PROG} -9n `expr "$$1" : "\\(.*\\)c"`' dummy '{}' ';'; \
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	}
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	-chmod -R a+r "$(DESTDIR)${datadir}/emacs/${version}" ${COPYDESTS}
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## The above chmods are needed because "umask 022; tar ..." is not
## guaranteed to do the right thing; eg if we are root and tar is
## preserving source permissions.
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## Note that install-arch-indep deletes and recreates the entire
## installed etc/ directory, so we need it to run before this does.
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install-etcdoc: src install-arch-indep
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	-unset CDPATH; \
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	umask 022; ${MKDIR_P} "$(DESTDIR)${etcdocdir}" ; \
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	exp_etcdocdir=`cd "$(DESTDIR)${etcdocdir}"; /bin/pwd`; \
	if [ "`cd ./etc; /bin/pwd`" != "$$exp_etcdocdir" ]; \
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	then \
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	   docfile="DOC"; \
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	   echo "Copying etc/$${docfile} to $(DESTDIR)${etcdocdir} ..." ; \
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	   ${INSTALL_DATA} etc/$${docfile} "$(DESTDIR)${etcdocdir}/$${docfile}"; \
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	   $(set_installuser); \
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	     chown $${installuser} "$(DESTDIR)${etcdocdir}/$${docfile}" || true ; \
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	else true; fi
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## FIXME:
## If info/dir is missing, but we have install-info, we should let
## that handle it.  If info/dir is present and we do not have install-info,
## we should check for missing entries and add them by hand.
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##
## FIXME:
## If HAVE_MAKEINFO = no and there are no info files, do not install info/dir.
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install-info: info
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	umask 022; ${MKDIR_P} "$(DESTDIR)${infodir}"
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	-unset CDPATH; \
	thisdir=`/bin/pwd`; \
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	exp_infodir=`cd "$(DESTDIR)${infodir}" && /bin/pwd`; \
	if [ "`cd ${srcdir}/info && /bin/pwd`" = "$$exp_infodir" ]; then \
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	  true; \
	else \
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	   [ -f "$(DESTDIR)${infodir}/dir" ] || \
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	      [ ! -f ${srcdir}/info/dir ] || \
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	      ${INSTALL_DATA} ${srcdir}/info/dir "$(DESTDIR)${infodir}/dir"; \
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	   info_misc=`cd doc/misc && $(QUIET_SUBMAKE) $(MAKE) -s echo-info`; \
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	   cd ${srcdir}/info ; \
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	   for elt in ${INFO_NONMISC} $${info_misc}; do \
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	      test "$(HAVE_MAKEINFO)" = "no" && test ! -f $$elt && continue; \
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	      for f in `ls $$elt $$elt-[1-9] $$elt-[1-9][0-9] 2>/dev/null`; do \
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	       (cd "$${thisdir}"; \
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	        ${INSTALL_DATA} ${srcdir}/info/$$f "$(DESTDIR)${infodir}/$$f"); \
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	        [ -n "${GZIP_PROG}" ] || continue ; \
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	        rm -f "$(DESTDIR)${infodir}/$$f.gz"; \
	        ${GZIP_PROG} -9n "$(DESTDIR)${infodir}/$$f"; \
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	      done; \
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	     (cd "$${thisdir}"; \
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	      ${INSTALL_INFO} --info-dir="$(DESTDIR)${infodir}" "$(DESTDIR)${infodir}/$$elt"); \
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	   done; \
	fi
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## "gzip || true" is because some gzips exit with non-zero status
## if compression would not reduce the file size.  Eg, the gzip in
## OpenBSD 4.9 seems to do this (2013/03).  In Emacs, this can
## only happen with the tiny ctags.1 manpage.  We don't really care if
## ctags.1 is compressed or not.  "gzip -f" is another option here,
## but not sure if portable.
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install-man:
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	umask 022; ${MKDIR_P} "$(DESTDIR)${man1dir}"
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	thisdir=`/bin/pwd`; \
	cd ${mansrcdir}; \
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	for page in *.1; do \
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	  dest=`echo "$${page}" | sed -e 's/\.1$$//' -e '$(TRANSFORM)'`.1; \
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	  (cd "$${thisdir}"; \
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	   ${INSTALL_DATA} ${mansrcdir}/$${page} "$(DESTDIR)${man1dir}/$${dest}"); \
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	  [ -n "${GZIP_PROG}" ] || continue ; \
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	  rm -f "$(DESTDIR)${man1dir}/$${dest}.gz"; \
	  ${GZIP_PROG} -9n "$(DESTDIR)${man1dir}/$${dest}" || true; \
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	done

## Install those items from etc/ that need to end up elsewhere.
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## If you prefer, choose "emacs22" at installation time.
## Note: emacs22 does not have all the resolutions.
EMACS_ICON=emacs

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install-etc:
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	umask 022; ${MKDIR_P} "$(DESTDIR)${desktopdir}"
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	tmp=etc/emacs.tmpdesktop; rm -f $${tmp}; \
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	emacs_name=`echo emacs | sed '$(TRANSFORM)'`; \
	sed -e "/^Exec=emacs/ s/emacs/$${emacs_name}/" \
	  -e "/^Icon=emacs/ s/emacs/$${emacs_name}/" \
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	  ${srcdir}/etc/emacs.desktop > $${tmp}; \
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	${INSTALL_DATA} $${tmp} "$(DESTDIR)${desktopdir}/${EMACS_NAME}.desktop"; \
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	rm -f $${tmp}
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	thisdir=`/bin/pwd`; \
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	cd ${iconsrcdir} || exit 1; umask 022 ; \
	for dir in */*/apps */*/mimetypes; do \
	  [ -d $${dir} ] || continue ; \
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	  ( cd "$${thisdir}"; ${MKDIR_P} "$(DESTDIR)${icondir}/$${dir}" ) ; \
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	  for icon in $${dir}/${EMACS_ICON}[.-]*; do \
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	    [ -r $${icon} ] || continue ; \
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	    ext=`echo "$${icon}" | sed -e 's|.*\.||'`; \
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	    dest=`echo "$${icon}" | sed -e 's|.*/||' -e "s|\.$${ext}$$||" -e 's/$(EMACS_ICON)/emacs/' -e '$(TRANSFORM)'`.$${ext} ; \
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	    ( cd "$${thisdir}"; \
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	      ${INSTALL_DATA} ${iconsrcdir}/$${icon} "$(DESTDIR)${icondir}/$${dir}/$${dest}" ) \
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	    || exit 1; \
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	  done ; \
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	done

### Build Emacs and install it, stripping binaries while installing them.
install-strip:
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	$(MAKE) $(MFLAGS) INSTALL_STRIP=-s install
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### Delete all the installed files that the `install' target would
### create (but not the noninstalled files such as `make all' would create).
###
### Don't delete the lisp and etc directories if they're in the source tree.
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uninstall: uninstall-$(NTDIR) uninstall-doc
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	cd lib-src && 					\
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	 $(MAKE) $(MFLAGS) uninstall			\
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	    prefix="${prefix}" exec_prefix="${exec_prefix}" \
	    bindir="${bindir}" libexecdir="${libexecdir}" \
	    archlibdir="${archlibdir}"
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	-unset CDPATH; \
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	for dir in "$(DESTDIR)${lispdir}" "$(DESTDIR)${etcdir}" ; do 	\
	  if [ -d "$${dir}" ]; then			\
	    case `cd "$${dir}" ; /bin/pwd` in		\
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	      "`cd ${srcdir} ; /bin/pwd`"* ) ;;		\
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	      * ) rm -rf "$${dir}" ;;			\
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	    esac ;					\
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	    case "$${dir}" in				\
	      "$(DESTDIR)${datadir}/emacs/${version}"/* )		\
	        rm -rf "$(DESTDIR)${datadir}/emacs/${version}"	\
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	      ;;					\
	    esac ;					\
	  fi ;						\
	done
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	-rm -rf "$(DESTDIR)${libexecdir}/emacs/${version}"
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	thisdir=`/bin/pwd`; \
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	(info_misc=`cd doc/misc && $(QUIET_SUBMAKE) $(MAKE) -s echo-info`; \
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	 if cd "$(DESTDIR)${infodir}"; then \
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	   for elt in ${INFO_NONMISC} $${info_misc}; do \
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	     (cd "$${thisdir}"; \
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	      $(INSTALL_INFO) --remove --info-dir="$(DESTDIR)${infodir}" "$(DESTDIR)${infodir}/$$elt"); \
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	     if [ -n "${GZIP_PROG}" ]; then \
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	        ext=.gz; else ext=; fi; \
	     rm -f $$elt$$ext $$elt-[1-9]$$ext $$elt-[1-9][0-9]$$ext; \
	   done; \
	 fi)
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	(if [ -n "${GZIP_PROG}" ]; then \
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	    ext=.gz; else ext=; fi; \
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	 if cd ${mansrcdir}; then \
	   for page in *.1; do \
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	     rm -f "$(DESTDIR)${man1dir}"/`echo "$${page}" | sed -e 's/\.1$$//' -e '$(TRANSFORM)'`.1$$ext; done; \
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	 fi)
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	(cd "$(DESTDIR)${bindir}" && rm -f $(EMACSFULL) $(EMACS) || true)
	(if cd "$(DESTDIR)${icondir}"; then \
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	   rm -f hicolor/*x*/apps/${EMACS_NAME}.png \
	     hicolor/scalable/apps/${EMACS_NAME}.svg \
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	     hicolor/scalable/mimetypes/`echo emacs-document | sed '$(TRANSFORM)'`.svg; \
	fi)
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	-rm -f "$(DESTDIR)${desktopdir}/${EMACS_NAME}.desktop"
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	for file in snake-scores tetris-scores; do \
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	  file="$(DESTDIR)${gamedir}/$${file}"; \
	  [ -s "$${file}" ] || rm -f "$$file"; \
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	done

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### Windows-specific uninstall target for removing programs produced
### in nt/, and its Posix do-nothing shadow.
uninstall-:
uninstall-nt:
	cd $(NTDIR) && 					\
	 $(MAKE) $(MFLAGS) uninstall			\
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	    prefix="${prefix}" exec_prefix="${exec_prefix}" \
	    bindir="${bindir}" libexecdir="${libexecdir}" \
	    archlibdir="${archlibdir}"
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# ==================== Cleaning up and miscellanea ====================

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.PHONY: mostlyclean clean distclean bootstrap-clean maintainer-clean extraclean
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### `mostlyclean'
###      Like `clean', but may refrain from deleting a few files that people
###      normally don't want to recompile.  For example, the `mostlyclean'
###      target for GCC does not delete `libgcc.a', because recompiling it
###      is rarely necessary and takes a lot of time.
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mostlyclean:
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	cd src      && $(MAKE) $(MFLAGS) mostlyclean
	cd oldXMenu && $(MAKE) $(MFLAGS) mostlyclean
	cd lwlib    && $(MAKE) $(MFLAGS) mostlyclean
	cd lib      && $(MAKE) $(MFLAGS) mostlyclean
	cd lib-src  && $(MAKE) $(MFLAGS) mostlyclean
	cd nt       && $(MAKE) $(MFLAGS) mostlyclean
	-cd doc/emacs     && $(MAKE) $(MFLAGS) mostlyclean
	-cd doc/misc      && $(MAKE) $(MFLAGS) mostlyclean
	-cd doc/lispref   && $(MAKE) $(MFLAGS) mostlyclean
	-cd doc/lispintro && $(MAKE) $(MFLAGS) mostlyclean
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### `clean'
###      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.
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clean:
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	-rm -f etc/emacs.tmpdesktop
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	cd src      && $(MAKE) $(MFLAGS) clean
	cd oldXMenu && $(MAKE) $(MFLAGS) clean
	cd lwlib    && $(MAKE) $(MFLAGS) clean
	cd lib      && $(MAKE) $(MFLAGS) clean
	cd lib-src  && $(MAKE) $(MFLAGS) clean
	cd nt       && $(MAKE) $(MFLAGS) clean
	-cd doc/emacs     && $(MAKE) $(MFLAGS) clean
	-cd doc/misc      && $(MAKE) $(MFLAGS) clean
	-cd doc/lispref   && $(MAKE) $(MFLAGS) clean
	-cd doc/lispintro && $(MAKE) $(MFLAGS) clean
	cd nextstep && $(MAKE) $(MFLAGS) clean
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### `bootclean'
###      Delete all files that need to be remade for a clean bootstrap.
top_bootclean=\
	rm -f config.cache config.log
### `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.
top_distclean=\
	${top_bootclean}; \
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	rm -f config.status config.log~ Makefile stamp-h1 ${SUBDIR_MAKEFILES}
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distclean:
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	cd src      && $(MAKE) $(MFLAGS) distclean
	cd oldXMenu && $(MAKE) $(MFLAGS) distclean
	cd lwlib    && $(MAKE) $(MFLAGS) distclean
	cd lib      && $(MAKE) $(MFLAGS) distclean
	cd lib-src  && $(MAKE) $(MFLAGS) distclean
	cd nt       && $(MAKE) $(MFLAGS) distclean
	cd doc/emacs     && $(MAKE) $(MFLAGS) distclean
	cd doc/misc      && $(MAKE) $(MFLAGS) distclean
	cd doc/lispref   && $(MAKE) $(MFLAGS) distclean
	cd doc/lispintro && $(MAKE) $(MFLAGS) distclean
	cd leim     && $(MAKE) $(MFLAGS) distclean
	cd lisp     && $(MAKE) $(MFLAGS) distclean
	cd nextstep && $(MAKE) $(MFLAGS) distclean
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	  [ ! -d $$dir ] || (cd $$dir && $(MAKE) $(MFLAGS) distclean); \
	done
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	${top_distclean}

### `bootstrap-clean'
###      Delete everything that can be reconstructed by `make' and that
###      needs to be deleted in order to force a bootstrap from a clean state.
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bootstrap-clean:
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	cd src      && $(MAKE) $(MFLAGS) bootstrap-clean
	cd oldXMenu && $(MAKE) $(MFLAGS) maintainer-clean
	cd lwlib    && $(MAKE) $(MFLAGS) maintainer-clean
	cd lib      && $(MAKE) $(MFLAGS) maintainer-clean
	cd lib-src  && $(MAKE) $(MFLAGS) maintainer-clean
	cd nt       && $(MAKE) $(MFLAGS) maintainer-clean
	-cd doc/emacs     && $(MAKE) $(MFLAGS) maintainer-clean
	-cd doc/misc      && $(MAKE) $(MFLAGS) maintainer-clean
	-cd doc/lispref   && $(MAKE) $(MFLAGS) maintainer-clean
	-cd doc/lispintro && $(MAKE) $(MFLAGS) maintainer-clean
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	cd leim     && $(MAKE) $(MFLAGS) bootstrap-clean
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	cd lisp     && $(MAKE) $(MFLAGS) bootstrap-clean
	cd nextstep && $(MAKE) $(MFLAGS) maintainer-clean
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	for dir in test/automated admin/grammars admin/unidata; do \
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	  [ ! -d $$dir ] || (cd $$dir && $(MAKE) $(MFLAGS) bootstrap-clean); \
	done
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	[ ! -f config.log ] || mv -f config.log config.log~
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	rm -rf ${srcdir}/info
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	${top_bootclean}

### `maintainer-clean'
###      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.
###
###      One exception, however: `make maintainer-clean' should not delete
###      `configure' even if `configure' can be remade using a rule in the
###      Makefile.  More generally, `make maintainer-clean' should not delete
###      anything that needs to exist in order to run `configure' and then
###      begin to build the program.
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top_maintainer_clean=\
	${top_distclean}; \
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	rm -fr autom4te.cache
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maintainer-clean: bootstrap-clean
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	cd src  && $(MAKE) $(MFLAGS) maintainer-clean
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	cd leim && $(MAKE) $(MFLAGS) maintainer-clean
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	cd lisp && $(MAKE) $(MFLAGS) maintainer-clean
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	for dir in test/automated admin/grammars admin/unidata; do \
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	  [ ! -d $$dir ] || (cd $$dir && $(MAKE) $(MFLAGS) maintainer-clean); \
	done
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	${top_maintainer_clean}
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### This doesn't actually appear in the coding standards, but Karl
### says GCC supports it, and that's where the configuration part of
### the coding standards seem to come from.  It's like distclean, but
### it deletes backup and autosave files too.
extraclean:
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	for i in ${SUBDIR}; do (cd $$i; $(MAKE) $(MFLAGS) extraclean); done
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	${top_maintainer_clean}
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	-rm -f config-tmp-*
	-rm -f *~ \#*

# The src subdir knows how to do the right thing
# even when the build directory and source dir are different.
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.PHONY: TAGS tags
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TAGS tags: lib lib-src src
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	cd src; $(MAKE) $(MFLAGS) tags
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check: all
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	@if test ! -d test/automated; then \
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	  echo "You do not seem to have the test/ directory."; \
	  echo "Maybe you are using a release tarfile, rather than a repository checkout."; \
	else \
	  cd test/automated && $(MAKE) $(MFLAGS) check; \
	fi
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dist:
	cd ${srcdir}; ./make-dist

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DVIS  = lispref-dvi  lispintro-dvi  emacs-dvi  misc-dvi
HTMLS = lispref-html lispintro-html emacs-html misc-html
INFOS = lispref-info lispintro-info emacs-info misc-info
PDFS  = lispref-pdf  lispintro-pdf  emacs-pdf  misc-pdf
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PSS   = lispref-ps   lispintro-ps   emacs-ps   misc-ps
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DOCS = $(DVIS) $(HTMLS) $(INFOS) $(PDFS) $(PSS)
$(DOCS):
	t=$@; IFS=-; set $$t; IFS=; cd doc/$$1 && $(MAKE) $(MFLAGS) $$2

.PHONY: $(DOCS) docs pdf ps
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.PHONY: info dvi dist check html info-real info-dir check-info
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## TODO add etc/refcards.
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docs: $(DOCS)
dvi: $(DVIS)
html: $(HTMLS)
info-real: $(INFOS)
pdf: $(PDFS)
ps: $(PSS)
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info-dir: ${srcdir}/info/dir

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## Not strictly necessary, but speeds things up a bit by stopping
## the info-dir rule from running when not needed.
## Hopefully doc/misc/*.texi is not too long for some systems?
info_dir_deps = ${srcdir}/build-aux/dir_top \
	${srcdir}/doc/emacs/emacs.texi \
	${srcdir}/doc/lispintro/emacs-lisp-intro.texi \
	${srcdir}/doc/lispref/elisp.texi ${srcdir}/doc/misc/*.texi

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## It would be much simpler if info/dir was only created in the
## installation location by the install-info rule, but we also
## need one in the source directory for people running uninstalled.
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## FIXME it would be faster to use the install-info program if we have it,
## but then we would need to depend on info-real, which would
## slow down parallelization.
${srcdir}/info/dir: ${info_dir_deps}
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	tempfile=info-dir.$$$$; \
	rm -f $${tempfile}; \
	thisdir=`pwd`; \
	(cd ${srcdir} && ./build-aux/make-info-dir $${thisdir}/$${tempfile}); \
	${srcdir}/build-aux/move-if-change $${tempfile} ${srcdir}/info/dir
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INSTALL_DVI = install-emacs-dvi install-lispref-dvi \
	install-lispintro-dvi install-misc-dvi
INSTALL_HTML = install-emacs-html install-lispref-html \
	install-lispintro-html install-misc-html
INSTALL_PDF = install-emacs-pdf install-lispref-pdf \
	install-lispintro-pdf install-misc-pdf
INSTALL_PS = install-emacs-ps install-lispref-ps \
	install-lispintro-ps install-misc-ps
INSTALL_DOC = $(INSTALL_DVI) $(INSTALL_HTML) $(INSTALL_PDF) $(INSTALL_PS)

## Install non .info forms of the documentation.
## TODO add etc/refcards.
$(INSTALL_DOC):
	t=$@; IFS=-; set $$t; IFS=; cd doc/$$2 && $(MAKE) $(MFLAGS) $$1-$$3

.PHONY: $(INSTALL_DOC) install-doc
.PHONY: install-dvi install-html install-pdf install-ps

install-doc: $(INSTALL_DOC)
install-dvi: $(INSTALL_DVI)
install-html: $(INSTALL_HTML)
install-pdf: $(INSTALL_PDF)
install-ps: $(INSTALL_PS)


UNINSTALL_DVI = uninstall-emacs-dvi uninstall-lispref-dvi \
	uninstall-lispintro-dvi uninstall-misc-dvi
UNINSTALL_HTML = uninstall-emacs-html uninstall-lispref-html \
	uninstall-lispintro-html uninstall-misc-html
UNINSTALL_PDF = uninstall-emacs-pdf uninstall-lispref-pdf \
	uninstall-lispintro-pdf uninstall-misc-pdf
UNINSTALL_PS = uninstall-emacs-ps uninstall-lispref-ps \
	uninstall-lispintro-ps uninstall-misc-ps
UNINSTALL_DOC = $(UNINSTALL_DVI) $(UNINSTALL_HTML) $(UNINSTALL_PDF) $(UNINSTALL_PS)

$(UNINSTALL_DOC):
	t=$@; IFS=-; set $$t; IFS=; cd doc/$$2 && $(MAKE) $(MFLAGS) $$1-$$3

.PHONY: $(UNINSTALL_DOC) uninstall-doc
.PHONY: uninstall-dvi uninstall-html uninstall-pdf uninstall-ps

uninstall-doc: $(UNINSTALL_DOC)
uninstall-dvi: $(UNINSTALL_DVI)
uninstall-html: $(UNINSTALL_HTML)
uninstall-pdf: $(UNINSTALL_PDF)
uninstall-ps: $(UNINSTALL_PS)


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# Note that man/Makefile knows how to put the info files in $(srcdir),
# so we can do ok running make in the build dir.
# This used to have a clause that exited with an error if MAKEINFO = no.
# But it is inappropriate to do so without checking if makeinfo is
# actually needed - it is not if the info files are up-to-date.  (Bug#3982)
# Only the doc/*/Makefiles can decide that, so we let those rules run
# and give a standard error if makeinfo is needed but missing.
# While it would be nice to give a more detailed error message, that
# would require changing every rule in doc/ that builds an info file,
# and it's not worth it.  This case is only relevant if you download a
# release, then change the .texi files.