Here is the pkgsrc date:
# $NetBSD: Makefile,v 1.22 1999/03/03 20:19:05 hubertf Exp $

Here is the error message:
gcc -c qktstreelist.cpp -o qktstreelist.o -L/usr/X11R6/lib
-I/usr/X11R6/include/
qt
qktstreelist.cpp: In method `class QktsTreeListItem *
QktsTreeList::itemAt(int)'
:
qktstreelist.cpp:837: no matching function for call to
`QktsTreeList::forEveryVi
sibleItem (bool (QktsTreeList::)(QktsTreeListItem *, void *),
QktsItemSearchInfo
 *)'
qktstreelist.cpp:729: candidates are:
QktsTreeList::forEveryVisibleItem(bool (*)
(QktsTreeListItem *, void *), void *)
qktstreelist.h:233:                
QktsTreeList::forEveryVisibleItem(bool (Qkts
TreeList::*)(QktsTreeListItem *, void *), void *)
qktstreelist.cpp: In method `void QktsTreeList::forEveryVisibleItem(bool
(QktsTr
eeList::*)(class QktsTreeListItem *, void *), void *)':
qktstreelist.cpp:1343: must use .* or ->* to call pointer-to-member
function in
`func (...)'
*** Error code 1

Stop.
*** Error code 1

Stop.
*** Error code 1

Stop.