atendofenv (24feb22)

git-svn-id: svn://tug.org/texlive/trunk@62164 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 7 insertions, 1 deletions

diff --git a/Master/texmf-dist/tex/latex/atendofenv/atendofenv.sty b/Master/texmf-dist/tex/latex/atendofenv/atendofenv.sty
index 0b08497e777..2e8dc4c9342 100644
--- a/Master/texmf-dist/tex/latex/atendofenv/atendofenv.sty
+++ b/Master/texmf-dist/tex/latex/atendofenv/atendofenv.sty
@@ -33,18 +33,24 @@
 %% For more information, please refer to <https://unlicense.org>
 
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{atendofenv}[2022/02/23 v0.1 Initial Version]
+\ProvidesPackage{atendofenv}[2022/02/24 v0.2 Prevent an infinite loop]
 \RequirePackage{amsthm}
 \RequirePackage{letltxmacro}
 \newcommand{\AtEndOfEnv}[2]{
   \ifcsname #1\endcsname
+    \ifcsname aeoe@old#1\endcsname\relax
+    \else
     \expandafter\LetLtxMacro\csname aeoe@old#1\expandafter\endcsname\csname #1\endcsname
+    \fi
   \else
     \PackageError{atendofenv}{Environment #1 undefined}{Check the environment
     name passed to AtEndOfEnv}
   \fi
   \ifcsname end#1\endcsname
+    \ifcsname aeoe@oldend#1\endcsname\relax
+    \else
     \expandafter\LetLtxMacro\csname aeoe@oldend#1\expandafter\endcsname\csname end#1\endcsname
+    \fi
   \else
     \PackageError{atendofenv}{Environment #1 undefined}{Check the environment
     name passed to AtEndOfEnv}