Update OpenSimulator to use .NET 4.0

This allows region modules to register script functions that have more than a couple of arguments.
It also allows OpenSimulator code to use the feature and syntax additions that came with .NET 4.0
Windows users will need to install Microsoft .NET 4 framework if they have not done so already.
Windows C# Express 2010 also becomes the minimum IDE for build, so runprebuild.bat now generates a 2010 solution and runprebuild2010.bat goes away
Official minimum mono version becomes 2.10.8.1.  OpenSimulator will probably work with 2.8 later but this is not guaranteed.

1 files changed, 22 insertions, 2 deletions

diff --git a/runprebuild.bat b/runprebuild.bat
index 8927e9a..0fd7bbf 100755
--- a/runprebuild.bat
+++ b/runprebuild.bat
@@ -1,4 +1,24 @@
+@echo OFF
+
 bin\Prebuild.exe /target nant
-bin\Prebuild.exe /target vs2008
-echo C:\WINDOWS\Microsoft.NET\Framework\v3.5\msbuild opensim.sln > compile.bat
+bin\Prebuild.exe /target vs2010
+
+setlocal ENABLEEXTENSIONS
+set KEY_NAME="HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\4.0"
+set VALUE_NAME=MSBuildToolsPath
+
+FOR /F "usebackq skip=4 tokens=1-3" %%A IN (`REG QUERY %KEY_NAME% /v %VALUE_NAME% 2^>nul`) DO (
+    set ValueName=%%A
+    set ValueType=%%B
+    set ValueValue=%%C
+)
+
+if defined ValueName (
+    @echo Value Name = %ValueName%
+    @echo Value Type = %ValueType%
+    @echo Value Value = %ValueValue%
+) else (
+    @echo %KEY_NAME%\%VALUE_NAME% not found.
+)
 
+@echo %ValueValue%\msbuild opensim.sln > compile.bat