[IronPython] IPy 2.7 successfully built for .NET 3.5, but problem w. indirect v4 dependencies

[Jaromír Matýšek]

Hi,
I've suceeded building 2.7 for .NET 3.5 (I'm using it in SharePoint, so 
there's no way to use .NET 4) and it works, using v2release configuration. 
I've built IronPython, IronPython.Modules, Microsoft.Dynamic, 
Microsoft.Scripting and Microsoft.Scripting.Core dlls.

However, when I reference my class library (which is referencing my 
custom-built 2.7 dlls) from another solution and try to compile, I get 
several instances of the following warning and of course errors wherever I'm 
using some of my class library functions:

The primary reference "SPTools ... " could not be resolved because it has an 
indirect dependency on the .NET Framework assembly "mscorlib, 
Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" which has 
a higher version "4.0.0.0" than the version "2.0.0.0" in the current target 
framework.    
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets    

I've now spent a day and half trying to get rid of this problem. I've combed 
through the project files - they're all switched to v2, there's nothing even 
vaguely v4 related, it all compiles too, the problem remains.

I'd be very grateful for any ideas. 

Thanks
Jaromír Matýšek

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