Open Radar

 
Summary:
My builds stopped working in Xcode 7 beta 5 because clang is balking over a precompiled framework library from the Open Source "Growl" project:

ld: building for OSX, but linking in object file built for (unknown), file '/Volumes/Data/daniel/Sources-Modern/RSCommon/OpenSource/Growl-SDK/Growl.framework/Growl' for architecture x86_64

Put aside for a moment the fact that I will probably be removing Growl from my app :) It still serves to illustrate a change in clang that may affect linking against other pre-existing libraries.

Steps to Reproduce:
1. Download the attached "Growl" binary
2. From the command line with Xcode 7 beta 5 tools, run:

clang ./Growl



Expected Results:
Clang should process the library as an input and yield (in this case) an error about missing a _main symbol.

Actual Results:
Clang doesn't get that far, it balks over the binary apparently because it is unable to determine its platform suitability:

ld: building for OSX, but linking in object file built for (unknown), file 'Growl' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Note that if you run the same command with clang from Xcode 7 beta 4 or earlier, the library is accepted.


Version:
10.11 Beta (15A244d)

Xcode Version 7.0 beta 5 (7A176x)

Notes:


Configuration:


Attachments:
'Growl' was successfully uploaded.