webkit compilation error os x 10.8.2

Ld /Users/ronabraham/WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit normal x86_64
    cd /Users/ronabraham/WebKit/Source/WebKit
    setenv MACOSX_DEPLOYMENT_TARGET 10.8
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch x86_64 -dynamiclib -L/Users/ronabraham/WebKit/WebKitBuild/Debug -F/Users/ronabraham/WebKit/WebKitBuild/Debug -F/System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks -F/System/Library/Frameworks/ApplicationServices.framework/Frameworks -F/System/Library/Frameworks/Carbon.framework/Frameworks -F/System/Library/Frameworks/Quartz.framework/Frameworks -F/System/Library/Frameworks/CoreServices.framework/Frameworks -F/System/Library/PrivateFrameworks -filelist /Users/ronabraham/WebKit/WebKitBuild/WebKit.build/Debug/WebKit.build/Objects-normal/x86_64/WebKit.LinkFileList -Xlinker --no-demangle -exported_symbols_list /Users/ronabraham/WebKit/WebKitBuild/Debug/DerivedSources/WebKit/WebKit.LP64.exp -install_name /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit -mmacosx-version-min=10.8 -dead_strip -licucore -framework JavaScriptCore -framework QuartzCore -framework WebCore -sub_umbrella WebCore -framework Carbon -framework Cocoa -framework DiskArbitration -framework IOKit -framework OpenGL -framework Security -lWebKitSystemInterfaceMountainLion -stdlib=libc++ -fobjc-link-runtime -single_module -compatibility_version 1 -current_version 538.1 -o /Users/ronabraham/WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit
Undefined symbols for architecture x86_64:
  "__kCFURLCachePartitionKey", referenced from:
      _WKCachePartitionKey in libWebKitSystemInterfaceMountainLion.a(WebKitSystemInterface.o)
  "__CFHostIsDomainTopLevel", referenced from:
      _WKIsPublicSuffix in libWebKitSystemInterfaceMountainLion.a(WebKitSystemInterface.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)


** BUILD FAILED **


The following build commands failed:
	Ld /Users/ronabraham/WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit normal x86_64
(1 failure)
static-170:Scripts ronabraham$ clang -v
Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn)
Target: x86_64-apple-darwin12.2.0
Thread model: posix
static-170:Scripts ronabraham$