There can be good reasons why an IT organization has not installed development tools.
MacPorts is the deep end of the (support) pool for somebody that can't (also) install Xcode.
MacPorts is a good way for a non-admin or inexperienced user to get themselves seriously tangled with PATH, or with unexpected tool skews and the odd-ball errors. (And this is ignoring how much replication arises within what's installed by Apple and with what's also installed by MacPorts, bypassing what's installed by Apple.)
But if you really want to try a C compiler download for Mac OS X (or other boxes) that doesn't involve downloading and installing Xcode, have a look here:
Another problem with XCode is not that it is difficult for a user to install, but that XCode 4 is not free (as in beer), and some MacPorts/Homebrew users object to that.
There might be reasons why an IT org. has not installed Xcode, but those might not be good enough reasons for the users. From a users perspective, it might be nice to have a choice.
MacPorts is the deep end of the (support) pool for somebody that can't (also) install Xcode.
MacPorts is a good way for a non-admin or inexperienced user to get themselves seriously tangled with PATH, or with unexpected tool skews and the odd-ball errors. (And this is ignoring how much replication arises within what's installed by Apple and with what's also installed by MacPorts, bypassing what's installed by Apple.)
But if you really want to try a C compiler download for Mac OS X (or other boxes) that doesn't involve downloading and installing Xcode, have a look here:
http://llvm.org/releases/download.html