From d16032e7548102c3d4e5b86e62c259a2681417d7 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Fri, 3 Jun 2022 07:27:09 +0100
Subject: [PATCH] wayv: pull patch pending upstream inclusion for -fno-common
 toolchain support

Without the change build fails on upstream gcc-10 as:

    ld: process.o:(.bss+0x0): multiple definition of `child'; backend.o:(.bss+0x0): first defined here
---
 pkgs/tools/X11/wayv/default.nix | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/X11/wayv/default.nix b/pkgs/tools/X11/wayv/default.nix
index e489ad0237b..2bdeff6a579 100644
--- a/pkgs/tools/X11/wayv/default.nix
+++ b/pkgs/tools/X11/wayv/default.nix
@@ -1,4 +1,4 @@
-{lib, stdenv, fetchFromGitHub, libX11}:
+{lib, stdenv, fetchFromGitHub, fetchpatch, libX11}:
 stdenv.mkDerivation rec {
   pname = "wayv";
   version = "0.3";
@@ -10,6 +10,16 @@ stdenv.mkDerivation rec {
     sha256 = "046dvaq6na1fyxz5nrjg13aaz6ific9wbygck0dknqqfmmjrsv3b";
   };
 
+  patches = [
+    # Pull patch pending upstream inclusion for -fno-common toolchain support:
+    #   https://github.com/mikemb/wayV/pull/1
+    (fetchpatch {
+      name = "fno-common.patch";
+      url = "https://github.com/mikemb/wayV/commit/b927793e2a2c92ff1f97b9df9e58c26e73e72012.patch";
+      sha256 = "19i10966b0n710dic64p5ajsllkjnz16bp0crxfy9vv08hj1xygi";
+    })
+  ];
+
   buildInputs = [ libX11 ];
 
   postInstall = ''