fourchan-dl (4chan Downloader) version 1.6.2 has been ported (2013/12/11) to OS/2.
ftp://ftp.netlabs.org/pub/qtapps/fourchan-dl-v1.6.2-os2.7z
"A tool to download images from 4chan threads. Automatic rescanning for new images is supported as well as simultaneous watching multiple threads. Since it is written in Qt/C++ it is available for several platforms"
This port requires the Qt 4 libraries and libc064.dll .
Official Project URL: http://sourceforge.net/projects/fourchan-dl/
Port by Elbert Pol.