On Thu, Apr 11, 2013 at 1:19 AM, Richard A. O'Keefe <ok@cs.otago.ac.nz> wrote:
On 11/04/2013, at 12:56 PM, Brandon Allbery wrote:
> Xcode 4.2 and on do not use /Developer at all. You have an older Xcode on your system somehow, which does not understand newer object files; you should remove the entire /Developer tree. (Xcode, in order to be distributable via the App Store, is completely self-contained in /Applications/Xcode.app.)

Unfortunately, I cannot.  I _am_ able to install stuff, but uninstalling
generally gives me problems, and removing /Developer is something I'm not
allowed to do.

I think you need to discuss that with whoever made that dictum; requiring that a system be broken is not generally a good idea. Many software packages will find it and use outdated programs or frameworks as a result. It really needs to not be there at all.

(Newer Xcode should actually complain and tell you to run the removal script on startup, because its presence can even break Xcode under some circumstances.)

--
brandon s allbery kf8nh                               sine nomine associates
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