Checking patch manual/charset.texi...
error: while searching for:
conversion step is not the last one, the element must not be modified.
The @code{__outbufend} element must not be modified.

@item int __is_last
This element is nonzero if this conversion step is the last one.  This
information is necessary for the recursion.  See the description of the
conversion function internals below.  This element must never be
modified.

@item int __invocation_counter
The conversion function can use this element to see how many calls of

error: patch failed: manual/charset.texi:2422
error: manual/charset.texi: patch does not apply