Mainstream compiled languages (to native code) always supported static linking.

Maybe you mean developers of scripting languages?

C# never really had this if I recall (years ago), and Java had it but required monkeying around.

I specifically singled them out by stating compilation to native code by default. Java and C# compile firstly to intermediate code.

In any case, C# always had this in Singularity OS.

Java always had this in comercial JVMs targeted to embedded market.