I had a chance today to upgrade Ubuntu to 9.04. I had not been able to compile Stellarium in Linux for about 6 months due to other problems in Linux (not enough space). I started from scratch and installed all the dependancies as per the wiki and collected svn 4738. Stellarium compiled without a hitch (other than I haven't got OpenGl drivers for Linux).
The first thing I noticed was that Ctrl G works correctly in Linux but I cannot get it to work when compiling in Windows. Stellarium crashes if I press Ctrl G and has done since build 4735 (or there abouts)