From fe8aa284c2399137df886a0b4b2d5f3e3083138d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Wed, 22 Feb 2017 16:58:45 +0100
Subject: [PATCH] xcbuild: fixup build with glibc-2.25

---
 pkgs/development/tools/xcbuild/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/tools/xcbuild/default.nix b/pkgs/development/tools/xcbuild/default.nix
index 99859ed9640..0fc56827de8 100644
--- a/pkgs/development/tools/xcbuild/default.nix
+++ b/pkgs/development/tools/xcbuild/default.nix
@@ -31,6 +31,12 @@ in stdenv.mkDerivation rec {
     cp -r --no-preserve=all ${linenoise} ThirdParty/linenoise
   '';
 
+  # Avoid a glibc >= 2.25 deprecation warning that gets fatal via -Werror.
+  postPatch = ''
+    sed 1i'#include <sys/sysmacros.h>' \
+      -i Libraries/xcassets/Headers/xcassets/Slot/SystemVersion.h
+  '';
+
   enableParallelBuilding = true;
 
   # TODO: instruct cmake not to put it in /usr, rather than cleaning up