https://bugs.freedesktop.org/show_bug.cgi?id=59332
--- Comment #2 from Mike Lothian mike@fireburn.co.uk --- I've bisected it back to:
b07ae05a3dccef620c716e821c647413b951051 is the first bad commit commit ab07ae05a3dccef620c716e821c647413b951051 Author: Matt Turner mattst88@gmail.com Date: Wed Sep 5 11:12:29 2012 -0700
targets/dri-r600: Convert to automake
v2: Andreas Boll andreas.boll.dev@gmail.com - Provide compatibility with scripts for the old Mesa build system
:100644 100644 9c9791b5137525bb22de3439806d565411a698aa bb287d776c71a849f627af941bdbe0d514282ea1 M configure.ac :040000 040000 097ecdc98b02d01f522d90cae259f846fac14d64 c3659daefaf1f71454c058590a87603c250d4458 M src
But I don't think that's much of a surprise and might be a bit of a red herring
I've got a feeling the -m32 probably isn't being passed somewhere