Hi! Sorry if this is the wrong forum to post this on but...
I had a Leopard computer with all developer tools installed. Then I upgraded to Snow Leopard (erase and install), and restored from time machine. I tried the gcc command only to get "gcc: command not found". The reason for this I believe is that the link to the executable files in /Developer/usr/bin/ has been broken.
Elsewhere online, someone suggested adding the line "export PATH=$PATH:/Developer/usr/bin/" to my ".bash_profile" in my Home directory. I didn't have that file so i created one. So now, it is simply a 1 line file "export PATH=$PATH:/Developer/usr/bin/"
Unfortunately this didn't work (after logging out and back in). So I tried a different approach. I used
mv -iv /Developer/usr/bin/* /usr/bin/
in the Terminal to move the executable commands to where all the other executable commands are. Well, perhaps there is more I have to move, or more to this than I thought, because now I receive the error message: "installation problem, cannot exec 'cc1': No such file or directory" when trying to execute gcc.