The attached patch is intended for
http://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH
I submitted a separate patch #12985 for trunk.
Please apply this patch to the 2.8 branch only. Please do NOT merge forward to 2.9.x or trunk
The patch improves the installation instructions for Mac OS X Carbon and Cocoa. It states that Carbon is preferred over Cocoa in 2.8.x and that Cocoa developers should use 2.9.x.