On Fedora 39, doing meson setup reports that net/af_xdp is n ot built.

  net/af_xdp:  missing dependency, "libxdp >= 1.2.2" and "libbpf"

$ dnf list libxdp libbpf
Last metadata expiration check: 0:06:05 ago on Fri 17 Nov 2023 10:46:20 AM PST.
Installed Packages
libbpf.x86_64                   2:1.1.0-4.fc39                  
@fedora-modular
libxdp.x86_64                   1.4.1-1.fc39                     @updates       
Available Packages
libbpf.i686                     2:1.1.0-4.fc39                   fedora         
libxdp.i686                     1.4.1-1.fc39                     updates