Cannot build wxpython on Mac OS X 10.11 with Xcode 7.1

Th wxPython 3.0.2.0 tarball fais with these errors:

/Users/barry/Work/wxPython-src-3.0.2.0/src/osx/webview_webkit.mm:936:25: error: cannot initialize a variable of type 'WebBackForwardList *' with an rvalue of type 'WKBackForwardList *'
    WebBackForwardList* history = [m_webView backForwardList];
                        ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/barry/Work/wxPython-src-3.0.2.0/src/osx/webview_webkit.mm:954:25: error: cannot initialize a variable of type 'WebBackForwardList *' with an rvalue of type 'WKBackForwardList *'
    WebBackForwardList* history = [m_webView backForwardList];

I then went to git and cloned wxPython and wxWidgets which gets this error:

$ python2.7 build-wxpython.py --build_dir=../bld --debug --osx_cocoa 2>&1 | tee build.log
Can't find or import /Users/barry/wc/git/wxWidgets/build/tools/build-wxwidgets.py, exiting.

Is there a simple patch for 3.0.2.0 code to get it to compile?

Have a missed a step with the git sources to create the missing build-wxwidgets.py?

Barry