From af32623d043a635fba54dafa67349ec1796d23b3 Mon Sep 17 00:00:00 2001
From: David McFarland <corngood@gmail.com>
Date: Sun, 7 Jan 2018 21:28:57 -0400
Subject: [PATCH] mesa: set sysconfdir to /run/opengl-driver/etc

This allows drirc to be found.
---
 pkgs/development/libraries/mesa/default.nix | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/mesa/default.nix b/pkgs/development/libraries/mesa/default.nix
index e1fe061a965..d343bd1112d 100644
--- a/pkgs/development/libraries/mesa/default.nix
+++ b/pkgs/development/libraries/mesa/default.nix
@@ -98,7 +98,7 @@ stdenv.mkDerivation {
 
   # TODO: Figure out how to enable opencl without having a runtime dependency on clang
   configureFlags = [
-    "--sysconfdir=/etc"
+    "--sysconfdir=${driverLink}/etc"
     "--localstatedir=/var"
     "--with-dri-driverdir=$(drivers)/lib/dri"
     "--with-dri-searchpath=${driverLink}/lib/dri"
@@ -197,7 +197,6 @@ stdenv.mkDerivation {
   '';
 
   # TODO:
-  #  @vcunat isn't sure if drirc will be found when in $out/etc/;
   #  check $out doesn't depend on llvm: builder failures are ignored
   #  for some reason grep -qv '${llvmPackages.llvm}' -R "$out";
   postFixup = ''