This seems to still be relevant, so I'll leave it open.
]]>monodevelop 4.0.2 doesn't build using 2.10.8 because of a bug in 2.10.8 (cannot find the reference for this now).
2.10.9 doesn't build easily because of autoconf incompabilities.
I managed to build mono 2.10.11 by excluding documentation generation, and managed to compile monodevelop 4.0.2 using this.
But I get errors when opening files or syntax highlighting settings that I'm not sure how to fix.
So I don't really believe 2.10.9 is a Mac only release. I think it also affects gnu/linux.
It sure wouldn't damage to update it to 2.10.9, right?