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/data-array-byte-0.1.0.2:0/0.1.0.2::gentoo  USE="-doc -hscolour -profile (-test)" 7 KiB
[ebuild  N     ] dev-haskell/heaps-0.4:0/0.4::gentoo  USE="-doc -hscolour -profile" 11 KiB
[ebuild  N     ] dev-haskell/js-dgtable-0.5.2:0/0.5.2::gentoo  USE="-doc -hscolour -profile -test" 48 KiB
[ebuild  N     ] dev-haskell/js-flot-0.8.3:0/0.8.3::gentoo  USE="-doc -hscolour -profile -test" 648 KiB
[ebuild  N     ] dev-haskell/js-jquery-3.7.1:0/3.7.1::gentoo  USE="-doc -hscolour -profile -test" 116 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/splitmix-0.1.3.2:0/0.1.3.2::gentoo  USE="-doc -hscolour -optimised-mixer -profile (-test)" 12 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/clock-0.8.4:0/0.8.4::gentoo  USE="-doc -hscolour -profile (-test)" 10 KiB
[ebuild  N     ] dev-haskell/extra-1.8:0/1.8::gentoo  USE="-doc -hscolour -profile -test" 46 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/primitive-0.9.1.0:0/0.9.1.0::gentoo  USE="-doc -hscolour -profile (-test)" 64 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/filepattern-0.1.3:0/0.1.3::gentoo  USE="-doc -hscolour -profile -test" 16 KiB
[ebuild  N     ] dev-haskell/unordered-containers-0.2.21:0/0.2.21::gentoo  USE="-doc -hscolour -profile -test" 71 KiB
[ebuild  N     ] dev-util/shake-0.19.8:0/0.19.8::gentoo  USE="threaded -doc -embed-files -hscolour -profile -test" 262 KiB

Total: 23 packages (23 new), Size of downloads: 242364 KiB