Guard Malloc doesn't work

Question

I'm experimenting with different profiling options that Xcode provides, but when I enabling Guard Malloc option in Diagnostics tab and trying to run, I'm getting this error with immediate crash:

dyld: could not load inserted library: /usr/lib/libgmalloc.dylib

And it is right, /usr/lib/ doesn't contain this library. I've located it in:

Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk/usr/lib/

So I've created link, and started Command Line Tool (just to be sure, because it apparently part of MacOS SDK), enabled Guard Malloc again but the problem remains.
I don't quite get where is a problem: does it new Xcode 4.3 inadvertence, problem with my system or planned decision by Apple to replace it with something else (maybe Instruments)?

Answer 1

on device or simulator?

According to http://developer.apple.com/library/ios/#DOCUMENTATION/Performance/Conceptual/ManagingMemory/Articles/MallocDebug.html

You can use this option both Mac apps and also for iPhone applications running in the simulator.

Answer 2

Well, I got stuck by this too. From an apple list:

http://prod.lists.apple.com/archives/xcode-users/2012/Feb/msg00197.html

That's a known issue that's being investigated. I think that you may be able to work around it by installing the 10.7.3 combo installer

Which means you need to download the combo installer from: http://support.apple.com/kb/DL1484?

I'm trying it now to make sure it works, but the person on the mailing list said it worked.