func_version ()
{
func_gnulib_dir
- date=`sed 's/ .*//;q' "$gnulib_dir"/ChangeLog`
- version=`"$gnulib_dir"/build-aux/git-version-gen /dev/null`
+ if test -d "$gnulib_dir"/.git \
+ && (git --version) >/dev/null 2>/dev/null \
+ && (date --version) >/dev/null 2>/dev/null; then
+ # gnulib checked out from git.
+ sed_extract_first_date='/^Date/{
+s/^Date:[ ]*//p
+q
+}'
+ date=`cd "$gnulib_dir" && git log ChangeLog | sed -n -e "$sed_extract_first_date"`
+ # Turn "Fri Mar 21 07:16:51 2008 -0600" into "Mar 21 2008 07:16:51 -0600".
+ sed_year_before_time='s/^[^ ]* \([^ ]*\) \([0-9]*\) \([0-9:]*\) \([0-9]*\) /\1 \2 \4 \3 /'
+ date=`echo "$date" | sed -e "$sed_year_before_time"`
+ # Use GNU date to compute the time in GMT.
+ date=`date -d "$date" -u +"%Y-%m-%d %H:%M:%S"`
+ version=' '`"$gnulib_dir"/build-aux/git-version-gen /dev/null | sed -e 's/-dirty/-modified/'`
+ else
+ if test -d "$gnulib_dir"/CVS \
+ && (cvs --version) >/dev/null 2>/dev/null; then
+ # gnulib checked out from CVS.
+ sed_extract_first_date='/^date: /{
+s/^date: \([0-9][0-9][0-9][0-9]\).\([0-9][0-9]\).\([0-9][0-9]\) \([0-9][0-9]:[0-9][0-9]:[0-9][0-9]\).*/\1-\2-\3 \4/p
+q
+}'
+ date=`cd "$gnulib_dir" && cvs log -N ChangeLog 2>/dev/null | sed -n -e "$sed_extract_first_date"`
+ else
+ # gnulib copy without versioning information.
+ date=`sed -e 's/ .*//;q' "$gnulib_dir"/ChangeLog`
+ fi
+ version=
+ fi
year=`"$gnulib_dir"/build-aux/mdate-sh "$self_abspathname" | sed 's,^.* ,,'`
echo "\
-gnulib-tool (GNU $package $date) $version
+gnulib-tool (GNU $package $date)$version
Copyright (C) $year Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.