Use git-version-gen for version names between releases.

* .cvsignore (.tarball-version, GNUmakefile, *~): Add.
* .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
* .prev-version: New.
* .version.in: Remove.
* ChangeLog: Remove the $Id$ previously used for capturing the CVS
revision.
* GNUmakefile: Remove, now copied from Gnulib.
* Makefile.am: Add code suggested by comments in
build-aux/git-version-gen.
(EXTRA_DIST): Remove GNUmakefile, handled by Gnulib.  Add maint.mk,
.prev-version, and .version.
* NEWS (2.3b+): Rename to...
(?.?): ... this because we're dropping the "+" version naming scheme,
but, in general, we still can't be sure of our next release name.
* bootstrap: Add a quick hack to remove from .gitignore the
GNUmakefile entry that gnulib adds.  We already have a /GNUmakefile
entry.  This should really be fixed in gnulib instead.
* bootstrap.conf (gnulib_modules): Add gnumakefile.
* configure.ac (AC_INIT): Set version name by invoking
build-aux/git-version-gen.
(AC_CONFIG_FILES): Remove .version, now generated by
build-aux/git-version-gen.
* maint.mk: New, copied from coreutils.
* doc/.cvsignore (bison.1): Add.
* doc/.gitignore (/bison.1): Add.
* doc/bison.1: Remove, generated.
* src/.cvsignore (revision.c): Remove.
* src/.gitignore (/revision.c): Remove.
* src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
(BUILT_SOURCES): Remove revision.c.
(revision.c): Remove.
* src/getargs.c (version): Don't print revision after the VERSION.
* src/revision.h: Remove.

src/.cvsignore

@@ -5,7 +5,6 @@
 Makefile
 Makefile.in
 bison
-revision.c
 scan-code.c
 scan-gram.c
 scan-skel.c

src/.gitignore

@@ -7,7 +7,6 @@
 /Makefile.in
 /bison
 /bison.exe
-/revision.c
 /scan-code.c
 /scan-gram.c
 /scan-skel.c

src/Makefile.am

@@ -53,7 +53,6 @@ bison_SOURCES =					  \
 	print-xml.c print-xml.h			  \
 	reader.c reader.h			  \
 	reduce.c reduce.h			  \
-	revision.c revision.h			  \
 	relation.c relation.h			  \
 	scan-code.h scan-code-c.c		  \
 	scan-gram.h scan-gram-c.c		  \
@@ -70,7 +69,6 @@ EXTRA_bison_SOURCES = scan-code.l scan-skel.l scan-gram.l
 
 BUILT_SOURCES =					\
 parse-gram.c parse-gram.h			\
-revision.c					\
 scan-code.c					\
 scan-skel.c					\
 scan-gram.c
@@ -85,16 +83,6 @@ yacc:
 echo:
 	echo $(bison_SOURCES) $(noinst_HEADERS)
 
-revision.c: $(top_srcdir)/configure $(top_srcdir)/ChangeLog
-	case "$(VERSION)" in \
-	  *+*) sed -n \
-	    's/^\$$\(Id.*\)\$$$$/const char *revision = "\1\\n";/p' \
-	    $(top_srcdir)/ChangeLog \
-	    ;; \
-	  *) echo 'const char *revision = "";' \
-	    ;; \
-	esac >$@
-
 # The following rule is not designed to be portable,
 # and relies on tools that not everyone has.
 

src/getargs.c

@@ -20,7 +20,6 @@
 
 #include <config.h>
 #include "system.h"
-#include "revision.h"
 #include "output.h"
 
 #include <argmatch.h>
@@ -338,7 +337,6 @@ version (void)
      continue.  */
   printf (_("bison (GNU Bison) %s"), VERSION);
   putc ('\n', stdout);
-  printf ("%s", revision);
   fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout);
   putc ('\n', stdout);
 

src/revision.h

@@ -1,25 +0,0 @@
-/* Between Bison releases, define a precise revision string.
-
-   Copyright (C) 2006 Free Software Foundation, Inc.
-
-   This file is part of Bison, the GNU Compiler Compiler.
-
-   This program 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.
-
-   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef REVISION_H_
-# define REVISION_H_
-
-extern const char *revision;
-
-#endif /* !REVISION_H_ */