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-rw-r--r--language/japanese/BX/bxbase/bxtoolbox-ja.def7
1 files changed, 6 insertions, 1 deletions
diff --git a/language/japanese/BX/bxbase/bxtoolbox-ja.def b/language/japanese/BX/bxbase/bxtoolbox-ja.def
index a522d6e29a..0ebd9f9190 100644
--- a/language/japanese/BX/bxbase/bxtoolbox-ja.def
+++ b/language/japanese/BX/bxbase/bxtoolbox-ja.def
@@ -4,7 +4,7 @@
%% file declaration
\NeedsTeXFormat{LaTeX2e}
-\ProvidesFile{bxtoolbox-ja.def}[2017/05/29 v1.1]
+\ProvidesFile{bxtoolbox-ja.def}[2020/10/04 v1.2]
%% check intergrity
\edef\bxtb@tmpa{\@currname.\@currext}\def\bxtb@tmpb{bxtoolbox-ja.def}
@@ -62,9 +62,14 @@
%%<+> \bxAtBeginDviX
% \AtBeginDvi that is safe to use in pTeX.
+\ifx\AddToHook\@undefined %----
\newcommand\bxAtBeginDviX[1]{%
\global\setbox\@begindvibox\vbox{%
\bxToYokoDir\unvbox\@begindvibox#1}}
+\else %----
+\newcommand\bxAtBeginDviX[1]{%
+ \AtBeginDvi{#1}}
+\fi %----
%--------------------------------------- Japanese something