Support regeneration of ja-dic.el under '--with-small-ja-dic'

* lisp/international/ja-dic-cnv.el (skkdic-convert): Record the
value of SMALL_JA_DIC option used to produce ja-dic.el.
* leim/Makefile.in (small-ja-dic-option): New target, triggers
regeneration of ja-dic.el when the value of SMALL_JA_DIC option
changes by the configure script.  Suggested by Ulrich Mueller
<ulm@gentoo.org>.
(${leimdir}/ja-dic/ja-dic.el): Depend on 'small-ja-dic-option'.
(Bug#66125)

* make-dist (possibly_non_vc_files):
* .gitignore: Add 'leim/small-ja-dic-option'.

1 files changed, 2 insertions, 0 deletions

diff --git a/lisp/international/ja-dic-cnv.el b/lisp/international/ja-dic-cnv.el
index 9ce31f11d91..c507aa58807 100644
--- a/lisp/international/ja-dic-cnv.el
+++ b/lisp/international/ja-dic-cnv.el
@@ -346,6 +346,8 @@ If NO-REDUCTION is non-nil, do not reduce the dictionary vocabulary."
       (erase-buffer)
       (buffer-disable-undo)
       (generate-lisp-file-heading ja-dic-filename 'skkdic-convert :code nil)
+      (insert (format ";; Generated with small ja-dic option: %s\n\n"
+                      (if no-reduction "no" "yes")))
       (insert ";; Original SKK dictionary file: "
               (file-relative-name (expand-file-name filename) dirname)
               "\n\n"