- added missing BuildRequires for pkgconfig(dri2proto)
- u_src-mesa_dri2.c-define-_GNU_SOURCE.patch
* Without having defined _GNU_SOURCE __USE_GNU isn't defined
either. Though secure_getenv() in stdlib.h isn't declared.

- Update libvdpau to version 1.1.1 (bnc#943967,#943968,#943969)
libvdpau versions 1.1 and earlier, when used in setuid or setgid
applications, contain vulnerabilities related to environment
variable handling that could allow an attacker to execute
arbitrary code or overwrite arbitrary files. See CVE-2015-5198,
CVE-2015-5199, and CVE-2015-5200 for more details.
This release uses the secure_getenv() function, when available,
to fix these problems. The updated libvdpau will instead use a
fallback implementation of secure_getenv() when the platform
doesn't provide one.
If you use the NVIDIA .run installer packages, please see
https://devtalk.nvidia.com/default/topic/873035 for additional
information.
This release also adds tracing of HEVC picture structures to
libvdpau_trace.
- supersedes patch: libvdpau-nopdftex.patch