From a4528a1270403f607702d196f3dd98a62d26e5f2 Mon Sep 17 00:00:00 2001
From: Malte Brandy <malte.brandy@maralorn.de>
Date: Wed, 18 Aug 2021 02:12:09 +0200
Subject: [PATCH] haskellPackages.ghc-api-compat: Use correct versions for
 every ghc

---
 pkgs/development/haskell-modules/configuration-common.nix      | 3 +++
 pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix   | 1 +
 .../haskell-modules/configuration-hackage2nix/main.yaml        | 1 +
 3 files changed, 5 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index e207413455ec..b0c08f188d09 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1942,4 +1942,7 @@ EOT
     Cabal = self.Cabal_3_6_0_0;
   };
 
+  # ghc-api-compat needlessly requires 8.10.5 exactly, but we have 8.10.6
+  ghc-api-compat = doJailbreak super.ghc-api-compat;
+
 } // import ./configuration-tensorflow.nix {inherit pkgs haskellLib;} self super
diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
index a15a3f404fbe..08431ee0dd39 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
@@ -129,4 +129,5 @@ self: super: {
   # vector 0.12.2 indroduced doctest checks that don‘t work on older compilers
   vector = dontCheck super.vector;
 
+  ghc-api-compat = super.ghc-api-compat_8_6;
 }
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index 67da108858f9..ec51f8c03ae4 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -118,6 +118,7 @@ extra-packages:
   - sbv == 7.13                         # required for pkgs.petrinizer
   - crackNum < 3.0                      # 2021-05-21: 3.0 removed the lib which sbv 7.13 uses
   - ShellCheck == 0.7.1                 # 2021-05-09: haskell-ci 0.12.1 pins this version
+  - ghc-api-compat < 8.10.5             # 2021-08-18: ghc-api-compat 8.10.5 is only compatible with ghc 8.10.5
 
 package-maintainers:
   abbradar: