[V4RB] mac V4RB v. 4.6 refuses to compile for Linux

[Karl Grob]

Hi

I am running Mac OS 10.6.3 and RB 2010r1. 
VRB 4.6 (30.4.2020) compiles for Mac and Windows, but refuses to compile for Linux.
Is this normal?

Thanks 

Karl Grob