switch (this currently defaults to the C# 2.0 language specification).
.TP
.I "ISO-1"
-Restrict compiler to use only ISO standardized features.
+Restrict compiler to use only first ISO standardized features.
The usage of features such as generics, static classes, anonymous
methods will lead to error.
.TP
+.I "ISO-2"
+Restrict compiler to use only the second ISO standardized features.
+This allows the use of generics, static classes, iterators and
+anonymous methods for example.
+.TP
.I "linq"
This enables the C# 3.0 support. Only a few features of C# 3.0 have
been implemented in the Mono C# compiler, so not everything is