Open Radar

 
Summary:
Xcode 5 can no longer build 32-bit kernel extensions.

Steps to Reproduce:
1. Install Xcode 5
2. Build a universal 32/64 bit kext
3. Profit!

Expected Results:
A universal binary kext with 32 and 64 bit architectures.

Actual Results:
32 bit fails to build with "clang: error: the clang compiler does not support 'fapple-kext' for C++ on Darwin/i386"

Version:
Xcode 5 (moving up from Xcode 4)

Notes:
Is there a supported way to add the clang 4.0 toolchain from Xcode 4.x to Xcode 5?

Configuration:
Model Name:  iMac
Model Type:  27-inch, Late 2012
Model Identifier:  iMac13,2
Processor Name:  Intel Core i7 CPU 3770
Processor Model:  Ivy Bridge
Processor Speed:  3.4 GHz
Number of Processors:  1
Total Number of Cores:  4
Memory Size:  16 GB 1600 MHz DDR3
Graphics Model:  NVIDIA GeForce GTX 680MX 2048 MB
Assembled in:  China
Manufactured during:  June 2013
Serial Number: 
L1 Cache:  64 KB
L2 Cache:  256 KB (per Core)
L3 Cache:  8 MB
Processor Bitrate:  64 bit
EFI Bitrate:  64 bit
Kernel Bitrate:  64 bit
Direct Media Interface:  5.0 GT/s
Boot ROM Version:  IM131.010A.B05
System SMC Version:  2.11f16
Power Source:  AC Power.
Hardware Universal Unique Identifier:  1525912F-5A88-5E7C-9A35-0476CBF1BD43
Minimum Supported Operating System:  OS X 10.8.2 (Build 12C2037) (Mountain Lion)
Current Boot Operating System:  OS X 10.8.4 Build 12E55 (Mountain Lion)
Maximum Supported Operating System:  Latest version of OS X 10.8 (Mountain Lion)


Attachments:


Xcode 4 does not work on 10.9 Mavericks because of crashes in ibtoold and hanging during lipo "Create universal binary <target>".