duncanmak/libgdiplus — comment on commit a8c74d159f2dd2eb92319e1fd5867c2d1e597539
File:  line 0
By nirvanai:

Point taken :)

But even though no bug was filed against this issue specifically, it has caused a world of hurt for our packaging. No one knew why we couldn't link libgdiplus against our bundled cairo, freetype, and fontconfig on the Mac, so we linked against the system libraries (which worked because they were part of Apple's X11 and didn't have the quartz font backend). That caused versioning and binary incompatibility issues across versions of OSX and all sorts of weird side effects-- see bugs 272 and 797 for example.

That being said, perhaps it would be best to limit the changes to Mac for now until they have been better tested.