Do not always pass --quickjump to haddock (backport #9049)

.github/workflows/whitespace.yml

@@ -49,7 +49,7 @@ jobs:
     - name: Install fix-whitespace
       if: ${{ !steps.cache.outputs.cache-hit }}
       run: |
-        cabal install --ignore-project --install-method=copy --installdir=$HOME/.local/bin fix-whitespace-${{ env.fix-whitespace-ver }}
+        cabal install --constraint=aeson==2.1.2.1 --ignore-project --install-method=copy --installdir=$HOME/.local/bin fix-whitespace-${{ env.fix-whitespace-ver }}
         strip $HOME/.local/bin/fix-whitespace
 
     - name: Check the whitespace issue

Cabal/src/Distribution/Simple/Haddock.hs

@@ -709,7 +709,7 @@ renderPureArgs version comp platform args = concat
     , [ "--since-qual=external" | isVersion 2 20 ]
 
     , [ "--quickjump" | isVersion 2 19
-                      , _ <- flagToList . argQuickJump $ args ]
+                      , True <- flagToList . argQuickJump $ args ]
 
     , [ "--hyperlinked-source" | isVersion 2 17
                                , True <- flagToList . argLinkedSource $ args ]

changelog.d/pr-9049

@@ -0,0 +1,13 @@
+synopsis: Do not always pass --quickjump to haddock #9049
+packages: Cabal
+prs: #9049
+issues: #9060
+description: {
+
+6d8adf13101 caused `cabal` to always pass the `--quickjump` flag to Haddock.
+Not only does this waste memory for a service that user hasn't asked for,
+but also leads to a failure with Haddocks shipped with GHC 9.0 and 9.2,
+which had a separate bug (fixed in later versions but not backported) when
+Haddock does not pass `--quickjump` recursively to the package dependencies.
+
+}