After merge of TkAqua Cocoa port struct TkWindowPrivate lacks CGrafPtr grafPtr that was used in Togl. This change breaks MacOS users ability to use legacy Togl applications wit Tk 8.5.9.
http://tktoolkit.cvs.sourceforge.net/viewvc/tktoolkit/tk/macosx/tkMacOSXInt.h?r1=1.32&r2=1.33
http://comments.gmane.org/gmane.comp.lang.tcl.mac/6828
http://lists.osgeo.org/pipermail/grass-user/2011-February/059680.html
http://lists.osgeo.org/pipermail/grass-user/2011-February/059626.html
There are a couple of patches for Togl and Cocoa in UCSF Chimera at:
https://plato.cgl.ucsf.edu/trac/chimera/browser/trunk/foreign/Togl
They will be merged into the next version of Togl. The patches are missing appropriate changes to the configure script. An unified patch would be happily accepted.