Jaguar support

[Ryan Schmidt]

Just for fun, I tried to compile MacPorts trunk on Mac OS X 10.2.8  
Jaguar. It didn't work:


checking for sed... (cached) /usr/bin/sed
checking which sed flag to use for extended regexp... no idea
configure: error: cannot determine flag to use for /usr/bin/sed


sed on Jaguar may not have any support for extended (modern) regular  
expressions. I can't find any mention of them in the manpage.

What should we do at this point? We still have 99 ports with  
"platform darwin 6" sections. Should we declare Jaguar support dead  
and remove those parts of those ports? Or can we fix Jaguar support  
somehow? Or do we leave it as is and require users to manually build  
GNU sed in order to build MacPorts? (If so, it'll be an older  
version; GNU sed 4.1.5 doesn't compile on Jaguar either.)