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-rw-r--r--tex/context/base/mkiv/syst-ini.mkiv5
1 files changed, 5 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/syst-ini.mkiv b/tex/context/base/mkiv/syst-ini.mkiv
index 06ef9dbe3..70a467ec5 100644
--- a/tex/context/base/mkiv/syst-ini.mkiv
+++ b/tex/context/base/mkiv/syst-ini.mkiv
@@ -1193,4 +1193,9 @@
\def\tokenized#1{\scantextokens\expandafter{\normalexpanded{#1}}}
\fi
+\ifdefined \unhpack \else
+ \let\unhpack\unhbox
+ \let\unvpack\unvbox
+\fi
+
\protect \endinput