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-rw-r--r--tex/context/base/xtag-ini.mkii3
1 files changed, 3 insertions, 0 deletions
diff --git a/tex/context/base/xtag-ini.mkii b/tex/context/base/xtag-ini.mkii
index a1d5d7be5..79fb2f24d 100644
--- a/tex/context/base/xtag-ini.mkii
+++ b/tex/context/base/xtag-ini.mkii
@@ -16,6 +16,9 @@
%D Beware: don't rely on \longempty things, since this may
%D change!
+\ifdefined\keeputfcharacters \else \let\keeputfcharacters\relax \fi % for mkiv
+\ifdefined\utfunicodetracer \else \newconstant\utfunicodetracer \fi % for mkiv
+
%D \macros
%D {defineinputmode,setinputmode}
%D