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

Calculating dependencies ... done!
Dependency resolution took 1.10 s (backtrack: 0/20).

[ebuild  N     ] acct-group/murmur-0-r3::gentoo  0 KiB
[ebuild  N     ] dev-cpp/abseil-cpp-20260107.1:0/2601.1.0-cpp20::gentoo  USE="-debug -test -test-helpers" 2251 KiB
[ebuild  N     ] dev-libs/libconfig-1.8.2:0/15::gentoo  USE="cxx -debug -static-libs -test" 3262 KiB
[ebuild  N     ] acct-user/murmur-0-r3::gentoo  0 KiB
[ebuild  N     ] dev-libs/protobuf-34.2:0/34.2.0::gentoo  USE="libprotoc (libupb) protobuf protoc zlib -conformance -debug -emacs -examples -test" 6872 KiB
[ebuild  N     ] dev-libs/protobuf-c-1.5.2:0/1.0.0::gentoo  USE="-static-libs" 520 KiB
[ebuild  N     ] net-voip/umurmur-0.3.1::gentoo  USE="-gnutls -mbedtls -shm" 93 KiB

Total: 7 packages (7 new), Size of downloads: 12997 KiB