LaTeX2e 更新への対応 #75
Description
LaTeX2e 2021-11-15 において eqnarray 環境が更新されており，jsclasses はそれを上書きしてしまう。
diff --git a/base/ltmath.dtx b/base/ltmath.dtx
index aadb96fb..0eded696 100644
--- a/base/ltmath.dtx
+++ b/base/ltmath.dtx
@@ -38,7 +38,7 @@
%<*driver>
% \fi
\ProvidesFile{ltmath.dtx}
- [2021/04/20 v1.2i LaTeX Kernel (Math Setup)]
+ [2021/10/14 v1.2j LaTeX Kernel (Math Setup)]
% \iffalse
%</driver>
%
@@ -915,10 +915,13 @@
% whole display. Note that we can't use \cs{refstepcounter} as this
% results in |\@currentlabel| getting restored at the wrong and
% thus always writing the first label to the \texttt{.aux} file.
+% \changes{v1.2j}{2021/10/14}
+% {Explicitly set \cs{@currentcounter} (gh/687)}
% \begin{macrocode}
\def\eqnarray{%
\stepcounter{equation}%
\def\@currentlabel{\p@equation\theequation}%
+ \def\@currentcounter{equation}%
\global\@eqnswtrue
\m@th
\global\@eqcnt\z@
@@ -1231,10 +1234,13 @@
%
% \begin{environment}{eqnarray}
% The \textsf{eqnarray} environment
+% \changes{v1.2j}{2021/10/14}
+% {Explicitly set \cs{@currentcounter} (gh/687)}
% \begin{macrocode}
\renewenvironment{eqnarray}{%
\stepcounter{equation}%
\def\@currentlabel{\p@equation\theequation}%
+ \def\@currentcounter{equation}%
\global\@eqnswtrue\m@th
\global\@eqcnt\z@
\tabskip\mathindent