Qt 4.8 (git) does not compile using Clang. Still QTBUG-21047....

When you try to build Qt 4.8, compilation of QtGui fails:

"kernel/qapplication_mac.mm:250:46: error: cannot initialize a parameter of type 'NSString *' with an rvalue of type 'const NSString *'
NSURL *nibUrl = [NSURL fileURLWithPath : reinterpret_cast<const NSString *>(QCFString::toCFStringRef(nibDir))];
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:52:35: note: passing argument to parameter 'path' here
+ (id)fileURLWithPath:(NSString *)path; // Better to use fileURLWithPath:isDirectory: if you know if the path is a file vs directory, as it saves an i/o."

I see two solutions (file 'kernel/qapplication_mac.mm', line 250):
1. Old C-style cast to (NSSting *):
NSURL *nibUrl = [NSURL fileURLWithPath : (NSString *) QCFString::toCFStringRef(nibDir)];
2. const_cast<NSString *>:
NSURL *nibUrl = [NSURL fileURLWithPath : const_cast<NSString *>(reinterpret_cast<const NSString *>(QCFString::toCFStringRef(nibDir)))];

Both work using clang 3.0, clang 3.3, gcc version 4.2.1 ...