Cannot build stable branch on OpenSUSE Tumbleweed

I am trying to build the stable branch (2014-07-20 BZR 4029) on OpenSUSE Tumbleweed and I believe that I have the latest version of all the requirements installed. Cmake completes fine but I am getting the following build error when running make:

/home/gerhard/Downloads/KiCad/kicad.bzr/common/displlst.cpp: In function ‘int sortItems(const wxString&, const wxString&)’:
/home/gerhard/Downloads/KiCad/kicad.bzr/common/displlst.cpp:141:51: error: cannot convert ‘const wxString’ to ‘const wxChar* {aka const wchar_t*}’ for argument ‘1’ to ‘int StrNumCmp(const wxChar*, const wxChar*, int, bool)’
     return StrNumCmp( item1, item2, INT_MAX, true );
                                                   ^
common/CMakeFiles/common.dir/build.make:894: recipe for target 'common/CMakeFiles/common.dir/displlst.cpp.o' failed

It just stops after that error. Any ideas?