From 4747796a9ec0c1310111b3cf3b9a624bba48359c Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 23 Oct 2013 12:49:28 +0200
Subject: [PATCH] Build RPMs for i686 rather than i386

The default target (i386-linux) causes flags like "-march i386" to be
added, which breaks on recent Fedora releases (18 and up), resulting
in errors like:

  /usr/lib/gcc/i686-redhat-linux/4.7.2/../../../../include/c++/4.7.2/ext/atomicity.h:48: undefined reference to `__atomic_fetch_add_4'

So set the target to i686-linux.

http://hydra.nixos.org/build/6567357
---
 pkgs/build-support/vm/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/build-support/vm/default.nix b/pkgs/build-support/vm/default.nix
index ce35832d78c..0296c434d6f 100644
--- a/pkgs/build-support/vm/default.nix
+++ b/pkgs/build-support/vm/default.nix
@@ -514,7 +514,8 @@ rec {
 
       echo "%_topdir $rpmout" >> $HOME/.rpmmacros
 
-      rpmbuild -vv -ta "$srcName"
+      if [ `uname -m` = i686 ]; then extra="--target i686-linux"; fi
+      rpmbuild -vv $extra -ta "$srcName"
 
       eval "$postBuild"
     '';