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

Calculating dependencies ... done!
Dependency resolution took 1.22 s (backtrack: 0/20).

[ebuild  N     ] app-text/dos2unix-7.5.7::gentoo  USE="nls -debug -test -verify-sig" 977 KiB
[ebuild  N     ] x11-libs/libXScrnSaver-1.2.5::gentoo  USE="-doc" 266 KiB
[ebuild  N     ] x11-libs/libXinerama-1.1.6::gentoo  USE="-doc" 263 KiB
[ebuild  N     ] dev-lang/ghc-9.8.4-r1:0/9.8.4::gentoo  USE="gmp (-big-endian) -doc -elfutils -ghcbootstrap -ghcmakebinary -llvm -numa -profile -test -unregisterised -verify-sig" LLVM_SLOT="20 -17 -18 -19" 238903 KiB
[ebuild  N     ] app-admin/haskell-updater-1.5.0.0::gentoo  45 KiB
[ebuild  N     ] dev-haskell/parsec-3.1.17.0:0/3.1.17.0::gentoo  USE="-doc -hscolour -profile" 38 KiB
[ebuild  N     ] dev-haskell/text-2.1.1:0/2.1.1::gentoo  USE="simdutf -doc -hscolour -profile" 294 KiB
[ebuild  N     ] dev-haskell/cabal-syntax-3.10.3.0:0/3.10.3.0::gentoo  USE="-doc -hscolour -profile" 228 KiB
[ebuild  N     ] dev-haskell/cabal-3.10.3.0:0/3.10.3.0::gentoo  USE="-doc -hscolour -profile" 389 KiB
[ebuild  N     ] dev-haskell/utf8-string-1.0.2:0/1.0.2::gentoo  USE="-doc -hscolour -profile -test" 11 KiB
[ebuild  N     ] dev-haskell/setlocale-1.0.0.10-r1:0/1.0.0.10::gentoo  USE="-doc -hscolour -profile" 3 KiB
[ebuild  N     ] dev-haskell/data-default-0.8.0.1:0/0.8.0.1::gentoo  USE="-doc -hscolour -profile -test" 6 KiB
[ebuild  N     ] dev-haskell/splitmix-0.1.3.2:0/0.1.3.2::gentoo  USE="-doc -hscolour -optimised-mixer -profile (-test)" 12 KiB
[ebuild  N     ] dev-haskell/data-default-class-0.2.0.0:0/0.2.0.0::gentoo  USE="-doc -hscolour -profile" 2 KiB
[ebuild  N     ] dev-haskell/random-1.2.1.3:0/1.2.1.3::gentoo  USE="-doc -hscolour -profile -test" 47 KiB
[ebuild  N     ] dev-haskell/x11-1.10.3:0/1.10.3::gentoo  USE="xinerama -doc -hscolour -profile" 189 KiB
[ebuild  N     ] x11-wm/xmonad-0.18.1:0/0.18.1::gentoo  USE="-doc -hscolour -no-autorepeat-keys -profile -test" 98 KiB
[ebuild  N     ] dev-haskell/x11-xft-0.3.4:0/0.3.4::gentoo  USE="-doc -hscolour -profile" 7 KiB
[ebuild  N     ] x11-wm/xmonad-contrib-0.18.2:0/0.18.2::gentoo  USE="xft -doc -hscolour -profile -test" 703 KiB

Total: 19 packages (19 new), Size of downloads: 242471 KiB