The gretl CVS tree currently contains a "lite" version of 
gtksourceview 1.8.5 (in gui2/gtksourceview).
I included this partly so that one could build gretl for 
Windows and OS X without relying on an installed version of 
gtksourceview. In addition, when we first introduced syntax 
highlighting in gretl gtksourceview was still fairly new, and 
might not have been available for all Linux distros.
But now time has moved on: I've successfully built full 
gtksourceview-2.0 libraries for Windows and OS X, and it's 
quite standard in Linux distros. I'm therefore thinking of (a) 
removing the "bundled" gtksourceview from gretl CVS, and (b) 
specifying gtksourceview-2.0 as a gretl dependency.
As regards point (b), right now our syntax highlighting code 
supports both gtksourceview-1.0 and gtksourceview-2.0, but I 
don't see much point in continuing to support the old version. 
Version 2.0 has been available since 2007, and is required to 
support printing with highlighting.
Does anyone have any objection to this?
Allin