@@ -2094,7 +2093,7 @@
% the list "\NC@list".
% \begin{macrocode}
\@ifundefined{NC@find@\NC@char}%
- {\@tfor\next:=<>clrmbp@!|\do{\if\next\NC@char
+ {\@tfor\next:=<>clrmbp@!|\do{\if\noexpand\next\NC@char
\@warning{Redefining primitive column \NC@char}\fi}%
\NC@list\expandafter{\the\NC@list\NC@do#1}}%
{\@warning{Column \NC@char\space is already defined}}%
@@ -2436,39 +2435,6 @@
% \end{macro}
% \end{macro}