Build fix in juceMacFonts

Build fix for LLVM 4.1 (see attached patch file)

(…but LLVM4.1 is what I used when I wrote that code…)

Anyway, thanks, I’ll change it to use CGAffineTransformMake instead.

Uh, so it must depends on other settings… none of which did appear pertinent to me! o_O

OK, I did not know about this method (I don’t know CG very much).

Thanks. Having that fixed upstream is better for everybody.