> * NEWS: Mention the change.
A NEWS entry is maybe not enough for such a change that will affect many
users. I'm adding one more migration aid:
2010-09-04 Bruno Haible <br...@clisp.org>
gnulib-tool: Help migration from --import to --add-import or --update.
* gnulib-tool: Emit a verbose error message when --import is used
without any module name.
*** gnulib-tool.orig Sat Sep 4 20:27:56 2010
--- gnulib-tool Sat Sep 4 20:26:34 2010
***************
*** 1235,1240 ****
--- 1235,1253 ----
func_exit 1
fi
fi
+ # This code helps migrating from --import to --add-import or --update. It
can
+ # be removed on 2012-01-01.
+ if test "$mode" = import && test $# = 0; then
+ echo "gnulib-tool: cowardly refusing to erase the module list." 1>&2
+ echo "The meaning of the option '--import' has changed." 1>&2
+ echo "See the documentation at" 1>&2
+ echo
"<http://www.gnu.org/software/gnulib/manual/html_node/Modified-imports.html>."
1>&2
+ echo "For updating to a newer version of gnulib, use" 1>&2
+ echo " gnulib-tool --add-import" 1>&2
+ echo "For restoring files that were omitted from version control, use"
1>&2
+ echo " gnulib-tool --update" 1>&2
+ func_exit 1
+ fi
if test "$mode" = update; then
if test $# != 0; then
echo "gnulib-tool: too many arguments in 'update' mode" 1>&2
