Edited CodeBlocks.cbp and CodeBlocks_wx30.cbp to define CB_PRECOMP in the project settings instead of NO_PCH and removed the define of WX_PRECOMP. Added code to sdk_common.h to undefined WX_PRECOMP if building CB against wxWidgets 3.0 using MinGW GCC greater than or equal to version 4.80. Removed include of <wx/wxprec.h> from xtra_res.h.
Fixed the location of wxsmith/VirtualBuildTargetsDlg.wxs related files; its in the src instead of sdk folder.
Used wxSmith from CB 13.12 to regenerate src/debuggersettingsdlg.cpp/h files.