Nomacs 2.4.6 was compiled again with newer libraries is available for download (2024-04-25):
"Nomacs is a free image viewer for windows, linux, and mac and OS/2 systems."

This port requires the Qt 5 libraries.
Ports Page: http://trac.netlabs.org/qtapps/wiki/QT4%20Graphics
Official Project URL: http://www.nomacs.org/
Port by Elbert Pol.