XCode 4.3 issues - maybe? mkisofs not installing

Hi Guys,

I've just upgraded to Lion 10.7.3, and am having some issues with installing Xcode 4.3 and a bunch of other binaries I'm using, for a customized DVD burning application.

All was working fine on 10.6.8, but now after installing Xcode 4.3, and some associated binaries (in particular cdrtools) I'm having issues with the "mkisofs" binary - which doesn't appear as it did previously, in my /opt/local/bin/ directory.

Has anyone else experienced this, or has anyone got any suggestions about how to get mkisofs installed?

Just wondering if it's Xcode 4.3 related, and if downgrading to 4.2 might work?

Any suggestions appreciated.