gistfile1.txt

diff --git a/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpBindingCompilerManager.cs b/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpBindingCompilerManager.cs
index 45ca0b6..164b02e 100644
--- a/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpBindingCompilerManager.cs
+++ b/main/src/addins/CSharpBinding/MonoDevelop.CSharp/CSharpBindingCompilerManager.cs
@@ -288,8 +288,22 @@ namespace MonoDevelop.CSharp
 				monitor.ReportError (message, e);
 				return null;
 			}
+
+			string corlibRef = "";
+			if (!compilerParameters.NoStdLib) {
+				if (compilerName == "mcs" && !project.TargetFramework.Id.Equals (TargetFrameworkMoniker.NET_1_1)) {
+					string corlib = project.AssemblyContext.GetAssemblyFullName ("mscorlib", project.TargetFramework);
+					if (corlib != null) {
+						corlib = project.AssemblyContext.GetAssemblyLocation (corlib, project.TargetFramework);
+						if (corlib != null && !alreadyAddedReference.Contains (corlib))
+							corlibRef = " \"/r:" + corlib + "\" ";
+							
+						sb.AppendLine ("-nostdlib");							
+					}
+				}
+			}
 			
-			monitor.Log.WriteLine (compilerName + " /noconfig " + sb.ToString ().Replace ('\n',' '));
+			monitor.Log.WriteLine (compilerName + " /noconfig " + corlibRef + sb.ToString ().Replace ('\n',' '));
 			
 			string workingDir = ".";
 			if (configuration.ParentItem != null) {
diff --git a/main/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/MonoFrameworkBackend.cs b/main/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/MonoFrameworkBackend.cs
index f20cc74..96065c9 100644
--- a/main/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/MonoFrameworkBackend.cs
+++ b/main/src/core/MonoDevelop.Core/MonoDevelop.Core.Assemblies/MonoFrameworkBackend.cs
@@ -104,17 +104,35 @@ namespace MonoDevelop.Core.Assemblies
 			}
 		}
 		
+		
+		string GetMcsName (TargetFrameworkMoniker fx)
+		{
+			//old compilers for specific frameworks
+			if (fx.Identifier == TargetFrameworkMoniker.ID_NET_FRAMEWORK) {
+				switch (fx.Version) {
+				case "1.1":
+					return "mcs";
+				case "2.0":
+				case "3.0":
+				case "3.5":
+					return "gmcs";
+				case "4.0":
+					return "dmcs";
+				}
+			}
+			
+			//moonlight, monotouch, mono for android
+			if (framework.ClrVersion == ClrVersion.Clr_2_1)
+				return "smcs";
+			
+			//the new cecil-based compiler
+			return "mcs";
+		}
+		
 		public override string GetToolPath (string toolName)
 		{
 			if (toolName == "csc" || toolName == "mcs") {
-				if (framework.ClrVersion == ClrVersion.Net_1_1)
-					toolName = "mcs";
-				else if (framework.ClrVersion == ClrVersion.Net_2_0)
-					toolName = "gmcs";
-				else if (framework.ClrVersion == ClrVersion.Clr_2_1)
-					toolName = "smcs";
-				else if (framework.ClrVersion == ClrVersion.Net_4_0)
-					toolName = "dmcs";
+				return GetMcsName (framework.Id);
 			}
 			else if (toolName == "vbc")
 				toolName = "vbnc";