I've previously uploaded wxGTK patch (bug #5617)
Created attachment 2613 [details] the ebuild
Created attachment 2614 [details, diff] the patch
Added your ebuild and patch into portage. audacity-1.0.0-r1 should be available on rsync servers in a couple of hours. Thanks for the fix! On to getting audacity 1.1.0 to work. :)