how long does it take to build gcc45?

[Tim Lyons]

On my 2.1 GHz PowerPC G5 (Mac OS X 10.5.8) I had a build of gcc43  
4.3.5_2 running for about 13 hours, and aborted it, because although   
Activity Monitor was showing 100%, it wasn't showing any of the  
expected build processes.

I restarted with the -d diagnostic switch, and this time it has just  
completed in 6 hours. Hooray!!!

(I think the build processes run for too short a time to see in AM.  
With diagnostics I do see them, probably because printing slows them a  
bit)