set __GLVND_DISALLOW_PATCHING=1 before loading glvnd libraries

Gbp-Pq: Name glvnd.patch

use all variables containing hardening flags

Forwarded: https://github.com/amonakov/primus/pull/174
Last-Update: 2015-07-25

Gbp-Pq: Name hardening.patch

primus (0~20150328-19) unstable; urgency=medium

  * Stop building the nvidia bits for ppc64el.

[dgit import unpatched primus 0~20150328-19]

Import primus_0~20150328-19.debian.tar.xz

[dgit import tarball primus 0~20150328-19 primus_0~20150328-19.debian.tar.xz]

Import primus_0~20150328.orig.tar.gz

[dgit import orig primus_0~20150328.orig.tar.gz]