Issues with building libvirt v6.7.0 on RHEL8.3

Hello all, I hope this is being posted in the right mailing list. I am trying to build libvirt v6.7.0 on RHEL8.3 x86_64 server in order to later apply patches for VDPA support posted recently by Jonathon Jongsma <jjongsma@redhat.com>. I am following the instrutions in https://libvirt.org/contribute.html and running from the root directory: meson build --prefix=/usr I fail on the following error: meson.build:921:2: ERROR: Program 'rpcgen portable-rpcgen' not found I can't find any reference how to overcome this obstacle. Thanks for any help, Eli