From eb9b3a59f0699754a31f76e886ed7eaf9b9e2cdb Mon Sep 17 00:00:00 2001
From: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
Date: Wed, 5 May 2021 11:45:18 +0200
Subject: [PATCH] haskell.packages.ghc901: update to 5.6.2 to fix build

---
 pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix b/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix
index 92d26a6eb0e..0147143e7b2 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix
@@ -98,4 +98,7 @@ self: super: {
   # The test suite seems pretty broken.
   base64-bytestring = dontCheck super.base64-bytestring;
 
+  # 5.6 introduced support for GHC 9.0.x, but hasn't landed in stackage yet
+  profunctors = super.profunctors_5_6_2;
+
 }