Merge pull request #151689 from Gabriel439/gabriella/fix_ghcjs_config.sub

haskell.compiler.ghcjs: Don't use upstream `config.sub`

pkgs/development/compilers/ghcjs/8.10/default.nix

@@ -78,6 +78,11 @@ in stdenv.mkDerivation {
     ];
     dontConfigure = true;
     dontInstall = true;
+
+    # Newer versions of `config.sub` reject the `js-ghcjs` host string, but the
+    # older `config.sub` filed vendored within `ghc` still works
+    dontUpdateAutotoolsGnuConfigScripts = true;
+
     buildPhase = ''
       export HOME=$TMP
       mkdir $HOME/.cabal