Bug#918076: atlas: FTBFS on x32: Configured arch: /bin/sh: 1: cannot open build/Make.inc: No such file

[Laurence Parry]

 It looks like x32 support was added in the development/3.11 (using -b -32
instead) in July 2012:
https://github.com/math-atlas/math-atlas/commit/5cd827d381a67fc575c4e8e331cddbbe8a12efe8
https://github.com/math-atlas/math-atlas/commit/b25a55524c1a16dd9fcbe1f0bfd57cd94a050cfa
However we're using 3.10, released around the same time, and the stab310
branch did not get those patches.

Gentoo also appears to have a patchset including x32 support:
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7728e30c9b59f5c7f4855d8fc7aa9240cda567ba

Their main patch is here:
https://gitweb.gentoo.org/repo/gentoo.git/diff/sci-libs/atlas/files/atlas-3.10.2-x32-support.patch?id=7728e30c9b59f5c7f4855d8fc7aa9240cda567ba
but they hand atlas_configure '-b 48' instead of -32.

Perhaps one of these could be adapted to Debian?

---

Or maybe an update to 3.11 makes more sense?
http://math-atlas.sourceforge.net/errata.html reports that:
"ATLAS 3.10 is more constrained in its block factors and storage formats,
and on many modern machines this can cut performance by around half."
This was also noted in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=833139

Best regards,
-- 
Laurence "GreenReaper" Parry
https://www.greenreaper.co.uk/
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