From e47ac55a21ce5b7c4b9e7e3a068fb5823a2cb5b0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Mon, 10 Apr 2017 11:18:13 +0200
Subject: [PATCH] glibc: apply the i686 patch only on i686

... to reduce rebuilding. /cc #23177.
---
 pkgs/development/libraries/glibc/common.nix | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/glibc/common.nix b/pkgs/development/libraries/glibc/common.nix
index 3d146c54398..66510919e34 100644
--- a/pkgs/development/libraries/glibc/common.nix
+++ b/pkgs/development/libraries/glibc/common.nix
@@ -48,9 +48,8 @@ stdenv.mkDerivation ({
          "/bin:/usr/bin", which is inappropriate on NixOS machines. This
          patch extends the search path by "/run/current-system/sw/bin". */
       ./fix_path_attribute_in_getconf.patch
-
-      ./fix-i686-memchr.patch
-    ];
+    ]
+      ++ lib.optional stdenv.isi686 ./fix-i686-memchr.patch;
 
   postPatch =
     # Needed for glibc to build with the gnumake 3.82