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-rwxr-xr-xsupport/mkversion.sh168
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diff --git a/support/mkversion.sh b/support/mkversion.sh
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+#! /bin/sh
+
+# Simple program to make new version numbers for the shell.
+# Big deal, but it was getting out of hand to do everything
+# in the makefile. This creates a file named by the -o option,
+# otherwise everything is echoed to the standard output.
+
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+#
+# 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/>.
+#
+
+PROGNAME=`basename $0`
+USAGE="$PROGNAME [-b] [-S srcdir] -d version -p patchlevel [-s status] [-o outfile]"
+
+source_dir="."
+
+while [ $# -gt 0 ]; do
+ case "$1" in
+ -o) shift; OUTFILE=$1; shift ;;
+ -b) shift; inc_build=yes ;;
+ -s) shift; rel_status=$1; shift ;;
+ -p) shift; patch_level=$1; shift ;;
+ -d) shift; dist_version=$1; shift ;;
+ -S) shift; source_dir="$1"; shift ;;
+ *) echo "$PROGNAME: usage: $USAGE" >&2 ; exit 2 ;;
+ esac
+done
+
+# Required arguments
+if [ -z "$dist_version" ]; then
+ echo "${PROGNAME}: required argument -d missing" >&2
+ echo "$PROGNAME: usage: $USAGE" >&2
+ exit 1
+fi
+
+#if [ -z "$patch_level" ]; then
+# echo "${PROGNAME}: required argument -p missing" >&2
+# echo "$PROGNAME: usage: $USAGE" >&2
+# exit 1
+#fi
+
+# Defaults
+if [ -z "$rel_status" ]; then
+ rel_status="release"
+fi
+
+build_ver=
+if [ -r .build ]; then
+ build_ver=`cat .build`
+fi
+if [ -z "$build_ver" ]; then
+ build_ver=0
+fi
+
+# increment the build version if that's what's required
+
+if [ -n "$inc_build" ]; then
+ build_ver=`expr 1 + $build_ver`
+fi
+
+# what's the patch level?
+if [ -z "$patch_level" ]; then
+ patchlevel_h=$source_dir/patchlevel.h
+ if [ -s $patchlevel_h ]; then
+ patch_level=`cat $patchlevel_h | grep '^#define[ ]*PATCHLEVEL' | awk '{print $NF}'`
+ fi
+fi
+if [ -z "$patch_level" ]; then
+ patch_level=0
+fi
+
+# If we have an output file specified, make it the standard output
+if [ -n "$OUTFILE" ]; then
+ if exec >$OUTFILE; then
+ :
+ else
+ echo "${PROGNAME}: cannot redirect standard output to $OUTFILE" >&2
+ exit 1
+ fi
+fi
+
+# Output the leading comment.
+echo "/* Version control for the shell. This file gets changed when you say"
+echo " \`make version.h' to the Makefile. It is created by mkversion. */"
+
+# Output the distribution version. Single numbers are converted to x.00.
+# Allow, as a special case, `[:digit:].[:digit:][:alpha:]' for
+# intermediate versions (e.g., `2.5a').
+# Any characters other than digits and `.' are invalid.
+case "$dist_version" in
+[0-9].[0-9][a-z]) ;; # special case
+*[!0-9.]*) echo "mkversion.sh: ${dist_version}: bad distribution version" >&2
+ exit 1 ;;
+*.*) ;;
+*) dist_version=${dist_version}.00 ;;
+esac
+
+dist_major=`echo $dist_version | sed 's:\..*$::'`
+[ -z "${dist_major}" ] && dist_major=0
+
+dist_minor=`echo $dist_version | sed 's:^.*\.::'`
+case "$dist_minor" in
+"") dist_minor=0 ;;
+[a-z]) dist_minor=0${dist_minor} ;;
+?) dist_minor=${dist_minor} ;;
+*) ;;
+esac
+
+#float_dist=`echo $dist_version | awk '{printf "%.2f\n", $1}'`
+float_dist=${dist_major}.${dist_minor}
+
+echo
+echo "/* The distribution version number of this shell. */"
+echo "#define DISTVERSION \"${float_dist}\""
+
+# Output the patch level
+#echo
+#echo "/* The patch level of this version of the shell. */"
+#echo "#define PATCHLEVEL ${patch_level}"
+
+# Output the build version
+echo
+echo "/* The last built version of this shell. */"
+echo "#define BUILDVERSION ${build_ver}"
+
+# Output the release status
+echo
+echo "/* The release status of this shell. */"
+echo "#define RELSTATUS \"${rel_status}\""
+
+echo
+echo "/* The default shell compatibility-level (the current version) */"
+echo "#define DEFAULT_COMPAT_LEVEL ${dist_major}${dist_minor}"
+
+# Output the SCCS version string
+sccs_string="${float_dist}.${patch_level}(${build_ver}) ${rel_status} GNU"
+echo
+echo "/* A version string for use by sccs and the what command. */"
+echo "#define SCCSVERSION \"@(#)Bash version ${sccs_string}\""
+
+# extern function declarations
+#echo
+#echo '/* Functions from version.c. */'
+#echo 'extern char *shell_version_string PARAMS((void));'
+#echo 'extern void show_shell_version PARAMS((int));'
+
+if [ -n "$inc_build" ]; then
+ # Make sure we can write to .build
+ if [ -f .build ] && [ ! -w .build ]; then
+ echo "$PROGNAME: cannot write to .build, not incrementing build version" >&2
+ else
+ echo "$build_ver" > .build
+ fi
+fi
+
+exit 0