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

Calculating dependencies ... done!
Dependency resolution took 1.27 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/mtl-2.3.1-r1:0/2.3.1::gentoo  USE="-doc -hscolour -profile" 26 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/call-stack-0.4.0:0/0.4.0::gentoo  USE="-doc -hscolour -profile -test" 3 KiB
[ebuild  N     ] dev-haskell/regex-base-0.94.0.3:0/0.94.0.3::gentoo  USE="-doc -hscolour -profile" 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/prettyprinter-1.7.1:0/1.7.1::gentoo  USE="text -buildreadme -doc -hscolour -profile (-test)" 56 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/haskell-lexer-1.1:0/1.1::gentoo  USE="-doc -hscolour -profile" 15 KiB
[ebuild  N     ] dev-haskell/cmdargs-0.10.22:0/0.10.22::gentoo  USE="quotation -doc -examples -hscolour -profile" 64 KiB
[ebuild  N     ] dev-haskell/diff-1.0.2:0/1.0.2::gentoo  USE="-doc -hscolour -profile -test" 11 KiB
[ebuild  N     ] dev-haskell/safe-0.3.21:0/0.3.21::gentoo  USE="-doc -hscolour -profile -test" 14 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/hostname-1.0-r1:0/1.0::gentoo  USE="-doc -hscolour -profile" 2 KiB
[ebuild  N     ] dev-haskell/xml-1.3.14:0/1.3.14::gentoo  USE="-doc -hscolour -profile" 12 KiB
[ebuild  N     ] dev-haskell/happy-1.20.1.1::gentoo  USE="-doc -test" 180 KiB
[ebuild  N     ] dev-haskell/hspec-discover-2.11.16:0/2.11.16::gentoo  USE="-doc -hscolour -profile (-test)" 7 KiB
[ebuild  N     ] dev-haskell/unix-compat-0.7.4.1:0/0.7.4.1::gentoo  USE="-doc -hscolour -profile -test" 16 KiB
[ebuild  N     ] dev-haskell/hunit-1.6.2.0-r1:0/1.6.2.0::gentoo  USE="-doc -hscolour -profile -test" 21 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/filemanip-0.3.6.3:0/0.3.6.3::gentoo  USE="-doc -hscolour -profile" 11 KiB
[ebuild  N     ] dev-haskell/pretty-show-1.10:0/1.10::gentoo  USE="-doc -hscolour -profile" 42 KiB
[ebuild  N     ] dev-haskell/regex-tdfa-1.3.2.5:0/1.3.2.5::gentoo  USE="-doc -hscolour -profile -test" 82 KiB
[ebuild  N     ] dev-haskell/regex-posix-0.96.0.2:0/0.96.0.2::gentoo  USE="-doc -hscolour -profile" 14 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/quickcheck-2.15.0.1:0/2.15.0.1::gentoo  USE="template-haskell -doc -hscolour -profile -test" 89 KiB
[ebuild  N     ] dev-haskell/hspec-expectations-0.8.4:0/0.8.4::gentoo  USE="-doc -hscolour -profile -test" 8 KiB
[ebuild  N     ] dev-haskell/prettyprinter-ansi-terminal-1.1.3:0/1.1.3::gentoo  USE="-doc -hscolour -profile (-test)" 9 KiB
[ebuild  N     ] dev-haskell/quickcheck-io-0.2.0:0/0.2.0::gentoo  USE="-doc -hscolour -profile" 2 KiB
[ebuild  N     ] dev-haskell/hspec-core-2.11.16:0/2.11.16::gentoo  USE="-doc -hscolour -profile (-test)" 98 KiB
[ebuild  N     ] dev-haskell/prettyprinter-compat-ansi-wl-pprint-1.0.2:0/1.0.2::gentoo  USE="-doc -hscolour -profile" 4 KiB
[ebuild  N     ] dev-haskell/hspec-2.11.16:0/2.11.16::gentoo  USE="-doc -hscolour -profile" 12 KiB
[ebuild  N     ] dev-haskell/hspec-contrib-0.5.2:0/0.5.2::gentoo  USE="-doc -hscolour -profile -test" 4 KiB
[ebuild  N     ] dev-haskell/ansi-wl-pprint-1.0.2:0/1.0.2::gentoo  USE="-doc -examples -hscolour -profile" 6 KiB
[ebuild  N     ] dev-haskell/test-framework-0.8.2.3:0/0.8.2.3::gentoo  USE="-doc -hscolour -profile -test" 24 KiB
[ebuild  N     ] dev-haskell/test-framework-hunit-0.3.0.3:0/0.3.0.3::gentoo  USE="-doc -hscolour -profile" 3 KiB
[ebuild  N     ] dev-util/shelltestrunner-1.11::gentoo  USE="-test" 47 KiB

Total: 43 packages (43 new), Size of downloads: 241879 KiB