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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libsecp256k1-0.7.0:0/6::gentoo  USE="asm ecdh ellswift extrakeys recovery schnorr -experimental -lowmem -musig -test -test-full -valgrind" 2093 KiB

Total: 1 package (1 new), Size of downloads: 2093 KiB