Bug#752160: blender FTBFS on alpha: that alpha is a 64bit arch is not fully detected.

[Michael Cree]

Source: blender
Version: 2.70a-2
Severity: important
User: debian-alpha at lists.debian.org
Usertags: alpha
Justification: Fails to build from source but built in the past.

blender FTBFS on alpha because it is a 64bit arch but is not listed in
the patch 0011-fix_FTBFS_on_unofficial_64bit_archs.patch thus the build
fails with:

cd /«PKGBUILDDIR»/obj-alpha-linux-gnu/source/blender/makesdna/intern && ../../../../bin/makesdna /«PKGBUILDDIR»/obj-alpha-linux-gnu/source/blender/makesdna/intern/dna.c /«PKGBUILDDIR»/source/blender/makesdna/
makesdna: /«PKGBUILDDIR»/intern/atomic/atomic_ops.h:265: atomic_add_z: Assertion `sizeof(size_t) == 1 << 2' failed.

Adding "|| defined(__alpha__)" to the test of arches in the patch
0011-fix_FTBFS_on_unofficial_64bit_archs.patch results in a successful
build on alpha.

Cheers
Michael.