I can test CB on MAC OS Yosemite
You will probably also need a debug build (with symbols) of both wxWidgets and Code::Blocks...
Anyway here is the stacktrace:
Performing @selector(_chooseSizeFromList:) from sender NSFontPanelTableView 0x132a1ff0
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x900ce69a __pthread_kill + 10
1 libsystem_pthread.dylib 0x9105ff19 pthread_kill + 101
2 libsystem_c.dylib 0x921a6eee abort + 156
3 libwx_macu-2.8.dylib 0x003a7ff5 wxFatalSignalHandler + 37
4 libsystem_platform.dylib 0x976ee03b _sigtramp + 43
5 ??? 0xffffffff 0 + 4294967295
6 libwx_macu-2.8.dylib 0x003a7fd0 wxHandleFatalExceptions(bool) + 400
7 libwx_macu-2.8.dylib 0x003de982 wxFont::Unshare() + 66
8 libwx_macu-2.8.dylib 0x003ddf93 wxFont::SetFaceName(wxString const&) + 19
9 libwx_macu-2.8.dylib 0x003df3f0 wxMacCarbonFontPanelHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*) + 352
10 com.apple.HIToolbox 0x915895a4 _InvokeEventHandlerUPP(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*, long (*)(OpaqueEventHandlerCallRef*, OpaqueEventRef*, void*)) + 36
https://github.com/wxWidgets/wxWidgets/blob/WX_2_8_BRANCH/src/mac/carbon/font.cpp