[PATCH] D27827: [ObjC] CodeGen support for @available on macOS

[Nico Weber via Phabricator via cfe-commits]

thakis added a comment.

We just noticed that if you call __builtin_available() for the first time after activating your app's sandbox, the function will fail:

SandboxViolation: crdmg(15489) deny file-read-data /System/Library/CoreServices/SystemVersion.plist
Violation:       deny file-read-data /System/Library/CoreServices/SystemVersion.plist 
Process:         crdmg [15489]
Path:            /Volumes/Build/src/./out/release/crdmg

Thread 0 (id: 421251):
0   libsystem_kernel.dylib        	0x00007fffe94a1a86 __open_nocancel + 10
1   crdmg                         	0x000000010444be98 parseSystemVersionPList + 360
2                                 	0xec83485354415541


Repository:
  rL LLVM

https://reviews.llvm.org/D27827