These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.13 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libaio-0.3.113_p8::gentoo  USE="-static-libs -test" 74 KiB
[ebuild  N     ] sys-apps/keyutils-1.6.3-r1:0/1.9::gentoo  USE="-static -static-libs -test" 134 KiB
[ebuild  N     ] net-nds/rpcbind-1.2.8::gentoo  USE="-debug -remotecalls (-selinux) (-systemd) -tcpd -warmstarts" 127 KiB
[ebuild  N     ] sys-fs/lvm2-2.03.39::gentoo  USE="readline udev -lvm -nvme -sanlock (-selinux) -static -static-libs (-systemd) -test -thin -valgrind -vdo -xfs" 2811 KiB
[ebuild  N     ] x11-libs/libpciaccess-0.19::gentoo  USE="zlib -static-libs" 64 KiB
[ebuild  N     ] sys-apps/hwloc-2.12.2:0/15::gentoo  USE="X cairo cpuid pci -cuda -debug -doc -l0 -nvml -rocm (-selinux) -static-libs -svg -udev -valgrind -xml" VIDEO_CARDS="-nvidia" 5504 KiB
[ebuild  N     ] net-fs/nfs-utils-2.8.5::gentoo  USE="libmount nfsv3 nfsv4 uuid -caps -junction -kerberos -ldap -nfsdctl -sasl (-selinux) -tcpd" 978 KiB
[ebuild  N     ] sys-cluster/mpich-3.4.3-r1::gentoo  USE="cxx romio threads -doc -fortran -mpi-threads -valgrind" 32084 KiB

Total: 8 packages (8 new), Size of downloads: 41773 KiB