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-rw-r--r--Master/texmf-dist/tex/csplain/opmac/pdfuni.tex1
1 files changed, 1 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/csplain/opmac/pdfuni.tex b/Master/texmf-dist/tex/csplain/opmac/pdfuni.tex
index 302d5ac940e..a2c35b4c5a0 100644
--- a/Master/texmf-dist/tex/csplain/opmac/pdfuni.tex
+++ b/Master/texmf-dist/tex/csplain/opmac/pdfuni.tex
@@ -16,6 +16,7 @@
% setting more converted characters (not only Czech/Slovak) see the end of
% this file (after \endinput command)
+\ifx\XeTeXversion\undefined\else \def\cnvhook#1{}\endinput \fi
\def\tmp#1#2\end{\if$#2$\else
\errmessage {This file is UTF-8 encoded. Use TeX+encTeX or 16bit TeX engine.}\fi}%