Upgrade to Yosemite issue

[tygraphics]

It's 1:34am and I've just upgraded my Mac to Yosemite and now when I try to compile my pascal project I get the following error:
ld: file not found: /usr/lib/crt1.o
An error occurred while linking

[kamischi]

Did you also update Xcode and the command line tools?

[tygraphics]

Apparently it now takes only 15 months for this 59 year old brain to loose all recollection of the fact I asked the exact same question about Mavericks previously. As I cram new information in my head to keep up with the rocket ride of new technology, old memories are washed away as though they never existed. Sorry for asking my question when I was too tired to do the least of searches to at least find my old post. Thank you.