maint: autogenerate THANKS.

More automation == less time wasted on menial tasks.
* build-aux/thanks-gen: script inspired by coreutils.
* Makefile.am (THANKS): Based on rule from coreutils/Makefile.am.
* NO-THANKS: New file. Configure thanks-gen output.
* THANKS: Remove.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>

3 files changed, 220 insertions, 179 deletions

diff --git a/Makefile.am b/Makefile.am
index e9ec90dc..1d3c6216 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -30,8 +30,12 @@ AUTOMAKE_OPTIONS = nostdinc
 
 gitlog_to_changelog	= $(srcdir)/$(config_aux_dir)/gitlog-to-changelog
 git_log_fix		= $(srcdir)/$(config_aux_dir)/git-log-fix
-changelog		= $(srcdir)/ChangeLog
+thanks_gen		= $(srcdir)/$(config_aux_dir)/thanks-gen
+
+changelog		= $(distdir)/ChangeLog
 changelog_old		= $(srcdir)/ChangeLog.old
+thanks			= $(distdir)/THANKS
+no_thanks		= $(srcdir)/NO-THANKS
 
 # Prime the variables that will be augmented by libtool.
 # FIXME - the -export-symbols-regex ".*" is a hack to work around the
@@ -68,7 +72,7 @@ dist-hook: dist-tarball-version
 dist-tarball-version:
 	echo $(VERSION) > $(distdir)/.tarball-version
 
-dist-hook: ChangeLog
+dist-hook: $(changelog)
 changelog_start_date = 2011-01-01
 $(changelog): FORCE
 	$(AM_V_GEN)if test -d '$(srcdir)/.git'; then	\
@@ -78,6 +82,34 @@ $(changelog): FORCE
 	  cat '$(changelog_old)' >> '$@';		\
 	fi
 
+# Sort in traditional ASCII order, regardless of the current locale;
+# otherwise we may get into trouble with distinct strings that the
+# current locale considers to be equal.
+ASSORT = LC_ALL=C sort
+
+# Extract all lines up to the first one starting with "##".
+prologue = perl -ne '/^\#\#/ and exit; print' $(no_thanks)
+
+# Generate THANKS using git log entries as far as possible, fixing
+# up ommisions and errors from NO-THANKS configuration.
+$(thanks): FORCE
+	$(AM_V_GEN)if test -d '$(srcdir)/.git'; then \
+	  { \
+	    $(prologue); echo; \
+	    { perl -ne '/^$$/.../^$$/ and print' $(no_thanks) \
+	      | grep -v '^$$' | perl -pe 's/  +/\0/'; \
+	      {  sed -e '1,/\#\# /d' -e '/^\#\# /d' \
+		    -e 's|[	][	 ]*|	|' < $(no_thanks) \
+		  | tr '\t' '\0'; \
+		git log --pretty=format:'%aN%x00%aE'; \
+	      } | $(ASSORT) -u; \
+	    } | $(thanks_gen) \
+	      | LC_ALL=en_US.UTF-8 sort -f; \
+	    echo; \
+	    printf ';; %s\n' 'Local Variables:' 'coding: utf-8' End:; \
+	  } > '$@'; \
+	fi
+
 MAINTAINERCLEANFILES += \
 		  ABOUT-NLS INSTALL Makefile.in aclocal.m4 \
 		  config-h.in configure stamp-h.in \
diff --git a/NO-THANKS b/NO-THANKS
new file mode 100644
index 00000000..0c58ac11
--- /dev/null
+++ b/NO-THANKS
@@ -0,0 +1,186 @@
+These people have contributed to GNU M4.  Some have reported problems,
+others have contributed improvements to the documentation and actual code.
+The particular contributions are described in the version control logs and
+ChangeLog files.  If your name has been left out, if you'd rather not be
+listed, or if you'd prefer a different address be used, please send a
+note to the bug-report mailing list (as seen at end of e.g., m4 --help).
+## 
+## There is no need to list here any name that appears as an Author in
+## "git log" output.  Those are automatically added when this template
+## is used to generate the THANKS file. You will still need to add
+## contributors who are not a git log Author - e.g. bug reporters.
+## 
+## Folks already promoted to AUTHORS:
+## 
+!Akim Demaille
+!Alexandre Duret-Lutz
+!Andrew James Bettison
+!David Warme
+!Eric Benjamin Blake
+!François Pinard
+!Gary V. Vaughan
+!James L. Avera
+!Joel E. Denny
+!John Brzustowski
+!John Gatewood Ham
+!John Gerard Makecki
+!Markus Duft
+!Michael Elizabeth Chastain
+!Noah Jeffrey Misch
+!Pete Chown
+!Ralf Wildenhues
+!Raphael Poss
+!René Seindal
+!Thomas Tanner
+!Tim Rice
+!William C. Cox
+!Yuji Minejima
+## 
+## Remove duplicates under alternate names, and add preferred email
+## addresses from contributors that don't match git log output here:
+## 
+!Andrew Bettison
+!Eric Blake
+!Francois Pinard
+!Noah Misch
+!Rene' Seindal
+## 
+## Add bug reporters, patch Authors you forgot to attribute at commit
+## time with 'git commit --author=...' and other non-patch contributers
+## below:
+## 
+Akiko Matsushita		matusita@sra.co.jp
+Alan Magnuson			awm@osc.edu
+Albert Chin			m4-discuss@mlists.thewrittenword.com
+Alexander Lehmann		alex@hal.rhein-main.de
+Amos Shapira			amoss@cs.huji.ac.il
+Andreas Büning			andreas.buening@nexgo.de
+Andreas Gustafsson		gson@niksula.hut.fi
+Andreas Schultz			aschultz@warp10.net
+Andreas Schwab			schwab@ls5.informatik.uni-dortmund.de
+Andrew Athan			athan@morgan.com
+Assar Westerlund		assar@nada.kth.se
+Ben A. Mesander			ben@piglet.cr.usgs.gov
+Ben Elliston			bje@cygnus.com
+Bengt Mertensson		bengt@mathematik.uni-bremen.de
+Bernhard Daeubler		daeb@physik.uni-ulm.de
+Bill Bumgarner			bbum@thoughtport.com
+Bjorn R. Bjornsson		brb@falcon.is
+Bob Badour			bob@badour.net
+Bob Proulx			bob@proulx.com
+Brendan Kehoe			brendan@cygnus.com
+Brian J. Fox			bfox@datawave.net
+Brian D. Carlstrom		bdc@clark.lcs.mit.edu
+Cesar Strauss			cestrauss@gmail.com
+Charles Wilson			cygwin@cwilson.fastmail.fm
+Chris McGuire			chris@wso.net
+Chris Penev			xpenev@gmail.com
+Damian Menscher			menscher@uiuc.edu
+Dan Jacobson			jidanni@jidanni.org
+Daniel Richard G.		skunk@iskunk.org
+David J. MacKenzie		djm@uunet.uu.net
+David Perlin			davep@nanosoft.com
+Elbert Pol			elbert.pol@gmail.com
+Elias Benali			elptr@users.sourceforge.net
+Erez Zadok			ezk@cs.columbia.edu
+Eric Allman			eric@cs.berkeley.edu
+Eric Backus			ericb@lsid.hp.com
+Eric Fischer			enf1@ellis.uchicago.edu
+Erick Branderhorst		Erick.Branderhorst@asml.nl
+Fernando Carrijo		fcarrijo1980@gmail.com
+Frank Schwidom			schwidom@impernet.de
+Gary Affonso			Gary_Affonso@iqinc.com
+Geoff Russell			grussell@guest.adelaide.edu.au
+Giovanni Toffetti		toffettg@lu.unisi.ch
+Greg A. Woods			woods@web.apc.org
+Greg McGary			gkm@cstone.net
+Hal Peterson			hrp@pecan.cray.com
+Hoang Uong			hoang@ornews.intel.com
+Hongjiu Lu			hjl@nynexst.com
+Ian Taylor			ian@cygnus.com
+Ilya N. Golubev			gin@mo.msk.ru
+Jan Djarv			Jan.Djarv@sa.erisoft.se
+Jason Merrill			jason@jarthur.claremont.edu
+Jay Krell			jay.krell@cornell.edu
+Jean-Charles Longuet		jclonguet@free.fr
+Jens Rehsack			rehsack@googlemail.com
+Jim Avera			jima@netcom.com
+Jim Kingdom			kingdon@cygnus.com
+Jim Meyering			meyering@acm.org
+Joel Sherrill			jsherril@uahcs2.cs.uah.edu
+John David Anglin		dave@hiauly1.hia.nrc.ca
+Josef T. Burger			bolo@bolo.com
+Joseph E. Sacco			jsacco@ssl.com
+Joseph S. Myers			jsm28@cam.ac.uk
+Joshua R. Poulson		jrp@plaza.ds.adp.com
+Karl Berry			karl@freefriends.org
+Karl Nelson			nelson85@llnl.gov
+Karl Vogel			vogelke@c-17igp.wpafb.af.mil
+Kaveh R. Ghazi			ghazi@noc.rutgers.edu
+Keith Bostic			bostic@abyssinian.sleepycat.com
+Konrad Schwarz			konrad.schwarz@siemens.com
+Kristine Lund			lund@lpnaxp.in2p3.fr
+Krste Asanovic			krste@icsi.berkeley.edu
+Lawson Chan			Lawson.Chan@tdsecurities.com
+M. Levinson			levinsm@users.sourceforge.net
+Marcus Daniels			marcus@ee.pdx.edu
+Marion Hakanson			hakanson@cse.ogi.edu
+Mark Seiden			mis@seiden.com
+Martin Koeppe			mkoeppe@gmx.de
+Massimo Dal Zotto		dz@cs.unitn.it
+Matt Kraai			kraai@debian.org
+Matthew Woehlke			mw_triad@users.sourceforge.net
+Matthias Rabe			rabe@mathematik.uni-bielefeld.de
+Mehul Sanghvi			mehul.sanghvi@gmail.com
+Michael Fetterman		mafetter@ichips.intel.com
+Michael L. Welcome		welcome@bigbird.llnl.gov
+Mike Andrews			kramer@fragile.termfrost.org
+Mike Dupont			jamesmikedupont@googlemail.com
+Mike Frysinger			vapier@gentoo.org
+Mike Howard			mike@clove.com
+Mike Lijewski			lijewski@theory.tc.cornell.edu
+Mike R.				mroberge@aol.com
+Mike Stump			mikestump@comcast.net
+Mikhail Teterin			Mikhail.Teterin@murex.com
+Nelson H. F. Beebe		beebe@math.utah.edu
+Nick S. Kanakakorn		skanan@otl.scu.edu
+Nicolas Lichtmaier		nick@technisys.com.ar
+Nicolas Pioch			pioch@inf.enst.fr
+Noah Friedman			friedman@gnu.org
+Per Bothner			per@bothner.com
+Pierre Gaumond			gaumondp@ere.umontreal.ca
+Pierre Mathieu			mathieu@geod.emr.ca
+Rafael Corvalan			rafael@club-internet.fr
+Rainer Tammer			tammer@tammer.net
+Richard A Nelson		cowboy@vnet.ibm.com
+Richard Ling			richard@research.canon.oz.au
+Richard Stallman		rms@gnu.org
+Robert Bernstein		rocky@panix.com
+Robert Bihlmeyer		robbe@orcus.priv.at
+Roderick Koehle			Roderick.Koehle@infineon.com
+Roland H. Pesch			roland@wrs.com
+Roland McGrath			roland@gnu.org
+Ronny Peine			RonnyPeine@gmx.de
+Sami Liedes			sliedes@cc.hut.fi
+Santiago Vila			sanvila@debian.org
+Scott Bartram			deneb!scottb
+Sergey Poznyakoff		gray@gnu.org.ua
+Simon Leinen			simon@lia.di.epfl.ch
+Skip Montanaro			skip@automatrix.com
+Stephen Perkins			perkins@cps.msu.edu
+Steve Williamson		willy@uinpla.npl.uiuc.edu
+Steven Augart			saugart@yahoo.com
+Terry Jones			terry@cliffs.ucsd.edu
+Thomas Klausner			tk@giga.or.at
+Thorsten Ohl			ohl@physics.harvard.edu
+Todd Rinaldo			toddr@cpanel.net
+Tom G. Christensen		tgc@jupiterrise.com
+Tom McConnell			tmcconne@sedona.intel.com
+Tom Quinn			trq@dionysos.thphys.ox.ac.uk
+Tom Tromey			tromey@cns.caltech.edu
+Ulrich Drepper			drepper@gnu.org
+Vern Paxson			vern@ee.lbl.gov
+Vic Abell			abe@cc.purdue.edu
+Vincent Lonngren		Vincent.lonngren.759@student.lu.se
+Vivek P. Singhal		singhal@cs.utexas.edu
+Walter Wong			wcw+@cmu.edu
diff --git a/THANKS b/THANKS
deleted file mode 100644
index 70e03546..00000000
--- a/THANKS
+++ /dev/null
@@ -1,177 +0,0 @@
-GNU M4 THANKS file
-
-GNU M4 was originally written by René Seindal.  Many people
-further contributed to GNU M4 by reporting problems, suggesting
-various improvements or submitting actual code.  Here is a list of
-these people.  Help me keep it complete and exempt of errors.
-
-Akiko Matsushita        matusita@sra.co.jp
-Akim Demaille           demaille@inf.enst.fr
-Alan Magnuson           awm@osc.edu
-Albert Chin             m4-discuss@mlists.thewrittenword.com
-Alexander Lehmann       alex@hal.rhein-main.de
-Amos Shapira            amoss@cs.huji.ac.il
-Andreas Büning          andreas.buening@nexgo.de
-Andreas Gustafsson      gson@niksula.hut.fi
-Andreas Schultz         aschultz@warp10.net
-Andreas Schwab          schwab@ls5.informatik.uni-dortmund.de
-Andrew Athan            athan@morgan.com
-Andrew Bettison         andrewb@zip.com.au
-Assar Westerlund        assar@nada.kth.se
-Ben A. Mesander         ben@piglet.cr.usgs.gov
-Ben Elliston            bje@cygnus.com
-Bengt Mertensson        bengt@mathematik.uni-bremen.de
-Bernhard Daeubler       daeb@physik.uni-ulm.de
-Bill Bumgarner          bbum@thoughtport.com
-Bjorn R. Bjornsson      brb@falcon.is
-Bob Badour              bob@badour.net
-Bob Proulx              bob@proulx.com
-Brendan Kehoe           brendan@cygnus.com
-Brian J. Fox            bfox@datawave.net
-Brian D. Carlstrom      bdc@clark.lcs.mit.edu
-Bruno Haible            bruno@clisp.org
-Carlo Teubner           carlo.teubner@gmail.com
-Cesar Strauss           cestrauss@gmail.com
-Charles Wilson          cygwin@cwilson.fastmail.fm
-Chris McGuire           chris@wso.net
-Chris Penev             xpenev@gmail.com
-Damian Menscher         menscher@uiuc.edu
-Dan Jacobson            jidanni@jidanni.org
-Daniel Richard G.       skunk@iskunk.org
-David J. MacKenzie      djm@uunet.uu.net
-David Perlin            davep@nanosoft.com
-Elbert Pol              elbert.pol@gmail.com
-Elias Benali            elptr@users.sourceforge.net
-Erez Zadok              ezk@cs.columbia.edu
-Eric Allman             eric@cs.berkeley.edu
-Eric Backus             ericb@lsid.hp.com
-Eric Blake              ebb9@byu.net
-Eric Fischer            enf1@ellis.uchicago.edu
-Erick Branderhorst      Erick.Branderhorst@asml.nl
-Fernando Carrijo        fcarrijo1980@gmail.com
-François Pinard         pinard@iro.umontreal.ca
-Frank Schwidom          schwidom@impernet.de
-Gary Affonso            Gary_Affonso@iqinc.com
-Gary V. Vaughan         gary@gnu.org
-Geoff Russell           grussell@guest.adelaide.edu.au
-Giovanni Toffetti       toffettg@lu.unisi.ch
-Greg A. Woods           woods@web.apc.org
-Greg McGary             gkm@cstone.net
-Hal Peterson            hrp@pecan.cray.com
-Hoang Uong              hoang@ornews.intel.com
-Hongjiu Lu              hjl@nynexst.com
-Ian Taylor              ian@cygnus.com
-Ilya N. Golubev         gin@mo.msk.ru
-Jan Djarv               Jan.Djarv@sa.erisoft.se
-Jason Merrill           jason@jarthur.claremont.edu
-Jay Krell               jay.krell@cornell.edu
-Jean-Charles Longuet    jclonguet@free.fr
-Jens Rehsack            rehsack@googlemail.com
-Jim Avera               jima@netcom.com
-Jim Kingdom             kingdon@cygnus.com
-Jim Meyering            meyering@acm.org
-Joel E. Denny           jdenny@ces.clemson.edu
-Joel Sherrill           jsherril@uahcs2.cs.uah.edu
-John Brzustowski        jbrzusto@fastmail.fm
-John David Anglin       dave@hiauly1.hia.nrc.ca
-John Gatewood Ham       zappaman@buraphalinux.org
-John Gerard Malecki     johnm@artisan.com
-Josef T. Burger         bolo@bolo.com
-Joseph E. Sacco         jsacco@ssl.com
-Joseph S. Myers         jsm28@cam.ac.uk
-Joshua R. Poulson       jrp@plaza.ds.adp.com
-Karl Berry              karl@freefriends.org
-Karl Nelson             nelson85@llnl.gov
-Karl Vogel              vogelke@c-17igp.wpafb.af.mil
-Kaveh R. Ghazi          ghazi@noc.rutgers.edu
-Keith Bostic            bostic@abyssinian.sleepycat.com
-Konrad Schwarz          konrad.schwarz@siemens.com
-Kristine Lund           lund@lpnaxp.in2p3.fr
-Krste Asanovic          krste@icsi.berkeley.edu
-Lawson Chan             Lawson.Chan@tdsecurities.com
-M. Levinson             levinsm@users.sourceforge.net
-Marcus Daniels          marcus@ee.pdx.edu
-Marion Hakanson         hakanson@cse.ogi.edu
-Mark Seiden             mis@seiden.com
-Martin Koeppe           mkoeppe@gmx.de
-Massimo Dal Zotto       dz@cs.unitn.it
-Matt Kraai              kraai@debian.org
-Matthew Woehlke         mw_triad@users.sourceforge.net
-Matthias Rabe           rabe@mathematik.uni-bielefeld.de
-Mehul Sanghvi           mehul.sanghvi@gmail.com
-Michael Fetterman       mafetter@ichips.intel.com
-Michael L. Welcome      welcome@bigbird.llnl.gov
-Mike Andrews            kramer@fragile.termfrost.org
-Mike Dupont             jamesmikedupont@googlemail.com
-Mike Frysinger          vapier@gentoo.org
-Mike Howard             mike@clove.com
-Mike Lijewski           lijewski@theory.tc.cornell.edu
-Mike R.                 mroberge@aol.com
-Mike Stump              mikestump@comcast.net
-Mikhail Teterin         Mikhail.Teterin@murex.com
-Nelson H. F. Beebe      beebe@math.utah.edu
-Nick S. Kanakakorn      skanan@otl.scu.edu
-Nicolas Lichtmaier      nick@technisys.com.ar
-Nicolas Pioch           pioch@inf.enst.fr
-Noah Friedman           friedman@gnu.org
-Noah Misch              noah@cs.caltech.edu
-Paolo Bonzini           bonzini@gnu.org
-Paul Eggert             eggert@cs.ucla.edu
-Per Bothner             per@bothner.com
-Pete Chown              pete.chown@dale.dircon.co.uk
-Pierre Gaumond          gaumondp@ere.umontreal.ca
-Pierre Mathieu          mathieu@geod.emr.ca
-Rafael Corvalan         rafael@club-internet.fr
-Rainer Tammer           tammer@tammer.net
-Ralf Wildenhues         Ralf.Wildenhues@gmx.de
-René Seindal            seindal@diku.dk
-Richard A Nelson        cowboy@vnet.ibm.com
-Richard Ling            richard@research.canon.oz.au
-Richard Stallman        rms@gnu.org
-Robert Bernstein        rocky@panix.com
-Robert Bihlmeyer        robbe@orcus.priv.at
-Roderick Koehle         Roderick.Koehle@infineon.com
-Roland H. Pesch         roland@wrs.com
-Roland McGrath          roland@gnu.org
-Ronny Peine             RonnyPeine@gmx.de
-Sami Liedes             sliedes@cc.hut.fi
-Santiago Vila           sanvila@debian.org
-Scott Bartram           deneb!scottb
-Sergey Poznyakoff       gray@gnu.org.ua
-Simon Leinen            simon@lia.di.epfl.ch
-Skip Montanaro          skip@automatrix.com
-Stepan Kasal            kasal@ucw.cz
-Stephen Perkins         perkins@cps.msu.edu
-Steve Williamson        willy@uinpla.npl.uiuc.edu
-Steven Augart           saugart@yahoo.com
-Terry Jones             terry@cliffs.ucsd.edu
-Thomas Klausner         tk@giga.or.at
-Thomas Tanner           tanner@ffii.org
-Thorsten Ohl            ohl@physics.harvard.edu
-Todd Rinaldo            toddr@cpanel.net
-Tom G. Christensen      tgc@jupiterrise.com
-Tom McConnell           tmcconne@sedona.intel.com
-Tom Quinn               trq@dionysos.thphys.ox.ac.uk
-Tom Tromey              tromey@cns.caltech.edu
-Ulrich Drepper          drepper@gnu.org
-Vern Paxson             vern@ee.lbl.gov
-Vic Abell               abe@cc.purdue.edu
-Vincent Lonngren        Vincent.lonngren.759@student.lu.se
-Vivek P. Singhal        singhal@cs.utexas.edu
-Walter Wong             wcw+@cmu.edu
-Yuji Minejima           ggb01164@nifty.ne.jp
-
-========================================================================
-
-Local Variables:
-coding: utf-8
-End:
-
-Copyright (C) 2000, 2006-2010, 2013 Free Software Foundation, Inc.
-
-Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU Free Documentation License, Version 1.3 or
-any later version published by the Free Software Foundation; with no
-Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
-Texts.  A copy of the license is included in the ``GNU Free
-Documentation License'' file as part of this distribution.