Ubuntu and Multiarch?

[Thales]

Hello!
I'm wondering it if it is possible to compile with mulitarch yet?  I have Ubuntu 16.04, and have recently also installed Ubuntu 18.04.
I noticed it says you can at the very top of this page, next to "NOTICE" :   https://wiki.winehq.org/Building_Biarch_Wine_On_Ubuntu

And says that you can't at the very bottom of this one under "Compiling WoW64":https://wiki.winehq.org/Ubuntu

I'm assuming the second one is out of date?
If I can, how do I supply the 32-bit dependencies in the 64-bit environment?  
Thanks!...John Alway