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 (0~20150328-18) unstable; urgency=medium

  * In MESA 25, libglapi.so.0 is gone.  (Closes: #1099264)
  * Bump Standards-Version to 4.7.2, no changes needed.

[dgit import unpatched primus 0~20150328-18]

Import primus_0~20150328-18.debian.tar.xz

[dgit import tarball primus 0~20150328-18 primus_0~20150328-18.debian.tar.xz]

Import primus_0~20150328.orig.tar.gz

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