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-rw-r--r--Master/texmf-dist/tex/latex/seminar/semlayer.sty3
1 files changed, 2 insertions, 1 deletions
diff --git a/Master/texmf-dist/tex/latex/seminar/semlayer.sty b/Master/texmf-dist/tex/latex/seminar/semlayer.sty
index 0afc8df9785..e59f175f582 100644
--- a/Master/texmf-dist/tex/latex/seminar/semlayer.sty
+++ b/Master/texmf-dist/tex/latex/seminar/semlayer.sty
@@ -84,7 +84,8 @@
\def\theoverlayframe{}
\def\overlaylabel{\bf Overlay \theoverlay}
\def\layerlabel{\bf Layer \thelayer}
-\newcounter{overlay}
+\@ifundefined{c@overlay}{\newcounter{overlay}}{}%%% hv 20131224
+%\newcounter{overlay}
\def\theoverlay{\theslide-\alph{overlay}}
\def\currlayer{}
\def\thelayer{\theoverlay-\currlayer}