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

Calculating dependencies ... done!
Dependency resolution took 1.58 s (backtrack: 0/20).

[ebuild     U  ] dev-build/cmake-4.3.4::gentoo [4.2.3::gentoo] USE="ncurses -dap -doc -gui -test -verify-sig" 13236 KiB

Total: 1 package (1 upgrade), Size of downloads: 13236 KiB