From 5e8e5553ad721c93b415e5c62d3780bb969f2a85 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sun, 22 May 2022 18:24:17 +0100
Subject: [PATCH] opencorsairlink: pull upstream fix for -fno-common toolchains

Without the change build fails on upstream gcc-10:

    ld: logic/settings/psu.o:/build/source/include/logic/scan.h:30:
      multiple definition of `scanlist'; main.o:/build/source/include/logic/scan.h:30: first defined here
---
 pkgs/tools/misc/opencorsairlink/default.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/misc/opencorsairlink/default.nix b/pkgs/tools/misc/opencorsairlink/default.nix
index 1c18cb82c590..ed11232065e9 100644
--- a/pkgs/tools/misc/opencorsairlink/default.nix
+++ b/pkgs/tools/misc/opencorsairlink/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, libusb1, pkg-config }:
+{ lib, stdenv, fetchFromGitHub, fetchpatch, libusb1, pkg-config }:
 
 stdenv.mkDerivation rec {
   pname = "OpenCorsairLink";
@@ -16,6 +16,15 @@ stdenv.mkDerivation rec {
     sha256 = "1nizicl0mc9pslc6065mnrs0fnn8sh7ca8iiw7w9ix57zrhabpld";
   };
 
+  patches = [
+    # Pull upstream fix for -fno-common toolchain
+    (fetchpatch {
+      name = "fno-common.patch";
+      url = "https://github.com/audiohacked/OpenCorsairLink/commit/d600c7ff032a3911d30b039844a31f0b3acfe26a.patch";
+      sha256 = "030rwka5bvf79x6ir18vqb09izhz1crp94x5gqjxwv3b20vvv4kx";
+    })
+  ];
+
   meta = with lib; {
     description = "Linux and Mac OS support for the CorsairLink Devices ";
     homepage = "https://github.com/audiohacked/OpenCorsairLink";