Modelsim relies a some 32-bit libraries that are not all easily avaliable on Fedora 31, this guide will walk you through the different steps needed to get it running.
The following 32-bit libraries are required for Modelsim to work:
- unixODBC.i686
- unixODBC-devel.i686
- ncurses-compat-libs.i686
- zeromq-devel.i686
- libXext.i686