The only real problem should be that the sdks for 10.6 and 10.7 as well as the development tools are inside /applications/xcode.app. Everything that points at /developers/... is gone. AND you need to explicitly download the unix dev tools from xcode preferences.

Also I would register a FREE developer account with apple and download the standalone unix dev tools package. This installs to /usr correctly

I will do exactly that. (I assume it's OK to keep the two symbolic links that I created.) Thank you!

Actually, the command-line tools are now downloadable from the Preference panel of Xcode. I had already installed them - but I still needed to create those symbolic links before I could build DOSBox.

The one you download from the preferences install to somewhere in the xcode.app. AND the installer doesn't necessarily fix symlinks that are present.
Also, if your script uses gcc-4.2 explicitly then it may fail because gcc 4.2 is no longer shipped with xcode, it's lvm-gcc and clang now only.

Btw,with unix dev tools I meant the command line tools. I'm away from mymac and can't look up the correct expressions 😉

I see that I should simply have modified my script to point to "gcc" and not "gcc-4.2" etc. That would have made things easier. Here are the exports from my build script, which are based entirely on your suggestions in older threads:

1#!/bin/sh
2
3export CC='/usr/bin/gcc-4.2 -arch i386' 
4export CXX='/usr/bin/g++-4.2 -arch i386' 
5export GCOV='/usr/bin/gcov-4.2 -arch i386' 

I'll try removing the "-4.2" and will report what happens. Thanks again for making it possible for me to build my application under OS X!

You're welcome 😉
I think the pointing to gcc-4.2 was a leftover from building for ppc and for that I needed to point to gcc-4.0 or so... Not sure, I was learning this stuff too when you asked for help back then 😉

I removed "-4.2" from the three exports, and DOSBox built successfully. Thank you! It's good to make things simpler...