--- a/dmd/IdentifierExp.d	Sun Oct 17 07:42:00 2010 +0400
+++ b/dmd/IdentifierExp.d	Sun Oct 17 20:56:07 2010 +0400
@@ -7,6 +7,8 @@
 import dmd.TypePointer;
 import dmd.FuncDeclaration;
 import dmd.TemplateInstance;
+import dmd.Id;
+import dmd.VarDeclaration;
 import dmd.TemplateDeclaration;
 import dmd.TemplateExp;
 import dmd.DsymbolExp;
@@ -132,6 +134,15 @@
 
 			return e.semantic(sc);
 		}
+		
+		if (ident == Id.ctfe)
+		{  
+			// Create the magic __ctfe bool variable
+		   VarDeclaration vd = new VarDeclaration(loc, Type.tbool, Id.ctfe, null);
+		   Expression e = new VarExp(loc, vd);
+		   e = e.semantic(sc);
+		   return e;
+		}
 
 		error("undefined identifier %s", ident.toChars());
 		type = Type.terror;