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-rw-r--r--doc/AddErrInfo.33
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diff --git a/doc/AddErrInfo.3 b/doc/AddErrInfo.3
index 0b59349..5b0fe5a 100644
--- a/doc/AddErrInfo.3
+++ b/doc/AddErrInfo.3
@@ -247,6 +247,9 @@ record instead of a value. Otherwise, it is similar to
.PP
\fBTcl_SetErrorCodeVA\fR is the same as \fBTcl_SetErrorCode\fR except that
instead of taking a variable number of arguments it takes an argument list.
+Interfaces using argument lists have been found to be nonportable in practice.
+This function is deprecated and will be removed in Tcl 9.0.
+
.PP
The procedure \fBTcl_GetErrorLine\fR is used to read the integer value
of the \fB\-errorline\fR return option without the overhead of a full