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

Calculating dependencies ... done!
Dependency resolution took 1.20 s (backtrack: 0/20).

[ebuild  N     ] app-text/dos2unix-7.5.7::gentoo  USE="nls -debug -test -verify-sig" 977 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/text-2.1.1:0/2.1.1::gentoo  USE="simdutf -doc -hscolour -profile" 294 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/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/colour-2.3.6:0/2.3.6::gentoo  USE="-doc -hscolour -profile (-test)" 21 KiB
[ebuild  N     ] dev-haskell/terminal-size-0.3.4:0/0.3.4::gentoo  USE="-doc -hscolour -profile" 5 KiB
[ebuild  N     ] dev-haskell/data-array-byte-0.1.0.2:0/0.1.0.2::gentoo  USE="-doc -hscolour -profile (-test)" 7 KiB
[ebuild  N     ] dev-haskell/os-string-2.0.8:0/2.0.8::gentoo  USE="-doc -hscolour -profile -test" 44 KiB
[ebuild  N     ] dev-haskell/hashable-1.4.7.0:0/1.4.7.0::gentoo  USE="-doc -hscolour -profile -random-initial-seed" 88 KiB
[ebuild  N     ] dev-haskell/ansi-terminal-types-1.1.3:0/1.1.3::gentoo  USE="-doc -hscolour -profile" 9 KiB
[ebuild  N     ] dev-haskell/ansi-terminal-1.1.5:0/1.1.5::gentoo  USE="-doc -examples -hscolour -profile" 33 KiB
[ebuild  N     ] dev-haskell/async-2.2.5-r1:0/2.2.5::gentoo  USE="-doc -hscolour -profile -test" 19 KiB
[ebuild  N     ] dev-haskell/concurrent-output-1.10.21:0/1.10.21::gentoo  USE="-doc -hscolour -profile" 24 KiB

Total: 16 packages (16 new), Size of downloads: 241117 KiB