From 7b1a693fb48d57662bffed9d8f3751452d2d5ddc Mon Sep 17 00:00:00 2001
From: Finley <finleymcilwaine@gmail.com>
Date: Thu, 29 Jun 2023 11:08:53 -0600
Subject: [PATCH] Do not always pass `--quickjump` to haddock (#9049)

---
 Cabal/src/Distribution/Simple/Haddock.hs |  2 +-
 changelog.d/pr-9049                      | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 changelog.d/pr-9049

diff --git a/Cabal/src/Distribution/Simple/Haddock.hs b/Cabal/src/Distribution/Simple/Haddock.hs
index 6b54de6b6c9..16a97a6eb03 100644
--- a/Cabal/src/Distribution/Simple/Haddock.hs
+++ b/Cabal/src/Distribution/Simple/Haddock.hs
@@ -867,7 +867,7 @@ renderPureArgs version comp platform args =
             $ args
         else []
     , ["--since-qual=external" | isVersion 2 20]
-    , [ "--quickjump" | isVersion 2 19, _ <- flagToList . argQuickJump $ args
+    , [ "--quickjump" | isVersion 2 19, True <- flagToList . argQuickJump $ args
       ]
     , [ "--hyperlinked-source" | isVersion 2 17, True <- flagToList . argLinkedSource $ args
       ]
diff --git a/changelog.d/pr-9049 b/changelog.d/pr-9049
new file mode 100644
index 00000000000..41fcd0a5bb7
--- /dev/null
+++ b/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.
+
+}