[mono-android] Unable to build portable library on OSX.

[Doug]

Is this a known issue, or something?

I saw this issue on bugzilla:
https://bugzilla.xamarin.com/show_bug.cgi?id=7173

However, my issue is more direct.
Clear copy of OSX mountain lion.
Install the android trial
Create new solution
Create new portable library project
Compile

Generates:
/Users/doug/projects/droid/droid.sample/HelloWorld.Common/HelloWorld.Common.csproj:
Error: /Users/doug/projects/droid/droid.sample/HelloWorld.Common/HelloWorld.Common.csproj:
/Library/Frameworks/Mono.framework/Versions/2.10.9/lib/mono/xbuild/Microsoft/Portable/v4.0/Microsoft.Portable.CSharp.targets:
Project file could not be imported, it was being imported by
/Users/doug/projects/droid/droid.sample/HelloWorld.Common/HelloWorld.Common.csproj:
/Library/Frameworks/Mono.framework/Versions/2.10.9/lib/mono/xbuild/Microsoft/Portable/v4.0/Microsoft.Portable.CSharp.targets
could not import
"$(MSBuildToolsPath)\Novell\Novell.MonoDroid.CSharp.targets"
(HelloWorld.Common)

Shall I file a bug for this? Or does it work for other people?

(Needless to say, not being able to build portable libraries is a bit
of a major issue)

~
Doug.