Xcode fails build for iOS simulator - _objc_setProperty_atomic

Originator:Sergio.Jardim
Number:rdar://11858187 Date Originated:12-09-2012
Status:Open Resolved:
Product:Xcode Product Version:4.4 GM
Classification:Serious Bug Reproducible:Always
 
Summary:
Running Xcode 4.4 GM and Mountain Lion GM, compiling an iOS app target simulator fails with 
Undefined symbols for architecture i386:
  "_objc_setProperty_atomic", referenced from:

Steps to Reproduce:
Compile iOS project for simulator.

Expected Results:
To compile cleanly.

Actual Results:
Ld /Users/sergio/Library/Developer/Xcode/DerivedData/CubeIPhone-fruciqnidkhufyadndbbbissdgbm/Build/Products/Debug-iphonesimulator/CubePro.app/CubePro normal i386
Undefined symbols for architecture i386:
  "_objc_setProperty_atomic", referenced from:

Regression:
Compiles fine on Lion and Xcode 4.3.3

Notes:
Changing the target's OSX Deployment target from "Compiler default" to 10.7 fixes this.

Comments

I've just added rdar://12021481 as a de facto duplicate for make-based setups.

By fkuehne at Aug. 2, 2012, 11:49 p.m. (reply...)

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