From e5b8919eebf4da1abfd013d080a4d75e6db21e34 Mon Sep 17 00:00:00 2001
From: Shamil Mubarakshin
 <127750046+shamil-mubarakshin@users.noreply.github.com>
Date: Sat, 11 Nov 2023 12:12:39 +0100
Subject: [PATCH] [macos11] Unlink brew ghc and cabal-install (#8778)

---
 images/macos/provision/core/haskell.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/images/macos/provision/core/haskell.sh b/images/macos/provision/core/haskell.sh
index ce9ba682..859a8c14 100644
--- a/images/macos/provision/core/haskell.sh
+++ b/images/macos/provision/core/haskell.sh
@@ -1,5 +1,12 @@
 #!/bin/bash -e -o pipefail
 
+source ~/utils/utils.sh
+
+# https://github.com/actions/runner-images/issues/8738
+if is_BigSur; then
+    brew unlink ghc cabal-install
+fi
+
 curl --proto '=https' --tlsv1.2 -fsSL https://get-ghcup.haskell.org | sh
 export PATH="$HOME/.ghcup/bin:$PATH"
 echo 'export PATH="$PATH:$HOME/.ghcup/bin"' >> "$HOME/.bashrc"