INFO: setup
Package:    sys-cluster/openmpi-5.0.3:0
Repository: gentoo
Maintainer: cluster@gentoo.org
USE:        abi_x86_64 amd64 elibc_glibc ipv6 kernel_linux
FEATURES:   preserve-libs sandbox userpriv usersandbox
LOG: setup

OpenMPI has an overwhelming count of configuration options.
Don't forget the EXTRA_ECONF environment variable can let you
specify configure options if you find them necessary.

INFO: install
Final size of build directory: 290692 KiB (283.8 MiB)
Final size of installed tree:   81492 KiB ( 79.5 MiB)
QA: other
QA Notice: Found the following implicit function declarations in configure logs:
  /var/tmp/portage/sys-cluster/openmpi-5.0.3/work/openmpi-5.0.3/3rd-party/openpmix/config.log:1247 - __c11_atomic_fetch_add
  /var/tmp/portage/sys-cluster/openmpi-5.0.3/work/openmpi-5.0.3/3rd-party/prrte/config.log:1124 - __c11_atomic_fetch_add
Check that no features were accidentally disabled.
See https://wiki.gentoo.org/wiki/Modern_C_porting.