Excuse me for being so dense. But I cannot find this setting anywhere.
I've followed all of the advice above, and it just isn't there.
In fact, I don't have a "GCC 4.0 - Code Generation" section at all.
I'm afraid somebody is going to have to give me a click-by-click guide to finding this setting. Or has this been changed?
I'm using the 2.2 SDK.
I've tried "info" on the base for the project, and on the top-level target. The section for GCC Code Generation just isn't there.
P.S. Here's a link to a post about what looks like the same problem:
http://lists.apple.com/archives/Xcod.../msg00171.html
I see the "User-Defined" section at the end of the build info. I do NOT see GCC 4.0 Code Generation, Language, Preprocessing, and Warnings.