[Mono-winforms-list] Compile mono with X11 rendering backend on OSX

[Frank T. Bergmann]

Hello all, 

this is regarding bug https://bugzilla.xamarin.com/show_bug.cgi?id=2474. Could anyone here let me know how to compile mono from sources to use the X11 rendering backend (like it used to do for mono until 2.10.5). Recent versions are unfortunately no longer working for me so I would be considering installing the mono framework together will all my apps. 

Thanks, 
Frakn