I was looking inside wxFlatnotebook.cpp and tried this:
#ifdef __WXMAC__
// On MAC the tabs are should be larger
tabHeight += 16;
#endif
and actually got a tab to show. See the image. However, tabs are not distributed as they should be, only one shows at a time. But it is possible to toggle between tabs using the arrow buttons.
It is definitely beyond me at this point to fix the problem completely, and I don't believe I should either for that matter. But it is enough for me to get by, for a while at least.
If the author doesn't have a Mac available, maybe I can help him to fix it. But that's another story.
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