From 65020eef409f7d1adb3f58a2edff8e9941ba8cc7 Mon Sep 17 00:00:00 2001
From: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Date: Sun, 16 Aug 2015 19:27:40 +0300
Subject: [PATCH] pixman: Enable '--disable-arm-iwmmxt' on ARM

Otherwise the build fails on ARMv6:

  CC       libpixman_iwmmxt_la-pixman-mmx.lo
pixman-mmx.c: In function 'mmx_fetch_x8r8g8b8':
pixman-mmx.c:3812:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90)
---
 pkgs/development/libraries/pixman/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/pixman/default.nix b/pkgs/development/libraries/pixman/default.nix
index 74d7706ec59..ce027a0a269 100644
--- a/pkgs/development/libraries/pixman/default.nix
+++ b/pkgs/development/libraries/pixman/default.nix
@@ -16,6 +16,8 @@ stdenv.mkDerivation rec {
 
   patches = stdenv.lib.optional stdenv.isDarwin ./fix-clang36.patch;
 
+  configureFlags = if stdenv.isArm then ["--disable-arm-iwmmxt"] else null;
+
   meta = {
     homepage = http://pixman.org;
     description = "A low-level library for pixel manipulation";