From 328bcdae252319bacdac9e9e20d0125af9969e20 Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Tue, 21 Mar 2017 21:56:40 +0300
Subject: [PATCH] mesa: enable texture floats only for drivers

To be on more safe side. This shouldn't matter theoretically as nothing in core
Mesa depends on them.
---
 pkgs/development/libraries/mesa/default.nix | 5 +++--
 pkgs/top-level/all-packages.nix             | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/mesa/default.nix b/pkgs/development/libraries/mesa/default.nix
index d79d9b2859e..6a5c72f04c3 100644
--- a/pkgs/development/libraries/mesa/default.nix
+++ b/pkgs/development/libraries/mesa/default.nix
@@ -5,8 +5,9 @@
 , libelf, libvdpau, python2
 , grsecEnabled ? false
 , enableRadv ? false
-# Texture floats are patented, see docs/patents.txt, but Debian enables them.
-, enableTextureFloats ? true
+# Texture floats are patented, see docs/patents.txt, so we don't enable them for full Mesa.
+# It's overridden for mesa_drivers.
+, enableTextureFloats ? false
 , galliumDrivers ? null
 , driDrivers ? null
 , vulkanDrivers ? null
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 458858cfeb0..fcfdd22630c 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8991,6 +8991,7 @@ with pkgs;
   mesa_drivers = mesaDarwinOr (
     let mo = mesa_noglu.override {
       grsecEnabled = config.grsecurity or false;
+      enableTextureFloats = true;
     };
     in mo.drivers
   );