From a2fa54fa679ed498e9dfe1a152ce91a7c1e81911 Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Tue, 30 Jan 2024 12:21:13 +0100
Subject: [PATCH] fetchFromGitHub: fix compatibility issue with nix-prefetch

---
 pkgs/build-support/fetchgithub/default.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/build-support/fetchgithub/default.nix b/pkgs/build-support/fetchgithub/default.nix
index 37f7dcfa3006..4ce3c6e84d76 100644
--- a/pkgs/build-support/fetchgithub/default.nix
+++ b/pkgs/build-support/fetchgithub/default.nix
@@ -28,7 +28,11 @@ let
   useFetchGit = fetchSubmodules || (leaveDotGit == true) || deepClone || forceFetchGit || (sparseCheckout != []);
   # We prefer fetchzip in cases we don't need submodules as the hash
   # is more stable in that case.
-  fetcher = if useFetchGit then fetchgit else fetchzip.override { withUnzip = false; };
+  fetcher =
+    if useFetchGit then fetchgit
+    # fetchzip may not be overridable when using external tools, for example nix-prefetch
+    else if fetchzip ? override then fetchzip.override { withUnzip = false; }
+    else fetchzip;
   privateAttrs = lib.optionalAttrs private {
     netrcPhase = ''
       if [ -z "''$${varBase}USERNAME" -o -z "''$${varBase}PASSWORD" ]; then