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

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

[ebuild     UD ] dev-build/cmake-4.1.5::gentoo [4.2.3::gentoo] USE="ncurses -dap -doc -gui -test -verify-sig" 12331 KiB

Total: 1 package (1 downgrade), Size of downloads: 12331 KiB