title: libxml/xmlwriter.h not found in XCode4.6.1
body: <p>I have integrated <strong>LinkedIn</strong> library for an iOS app [https://github.com/ResultsDirect/LinkedIn-iPhone/]which builds fine in Xcode 4.5.1 for iOS 6.0,..but when I use <strong>Xcode 4.6.1</strong> build fails saying <strong>libxml/xmlwriter.h not found</strong>
      I've <strong>added libxml2.dylib</strong> as library and <strong>/usr/include/libxml2 to the header paths</strong>.Still
  the error persists.
      Can anyone please help me in this. Thanks in Advance.</p>