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

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/apr-1.7.6-r1:1/1.7::gentoo  USE="urandom -doc -old-kernel (-selinux) -static-libs -valgrind" 879 KiB
[ebuild  N     ] dev-libs/apr-util-1.6.3:1::gentoo  USE="gdbm openssl sqlite -berkdb -doc -ldap -mysql -nss -odbc -postgres -static-libs -verify-sig" 423 KiB

Total: 2 packages (2 new), Size of downloads: 1302 KiB