The BUILD_STYLE Xcode variable has been deprecated for a while. The "Streamline Inspector Source" build phase script should switch from BUILD_STYLE to CONFIGURATION.
<rdar://problem/6341764>
Created attachment 62587 [details] Patch v1
Comment on attachment 62587 [details] Patch v1 Wrong patch file. webkit-patch FAIL (see Bug 42984).
Created attachment 62588 [details] Patch v1
Committed r64057: <http://trac.webkit.org/changeset/64057>