Re: backport of libreoffice-calc (5.1.2-3~bpo8+1) mixes up desktop environment

["Rebecca N. Palmer" <rebecca_palmer@zoho.com>]

Are you using the libdrm/mesa backports?  libdrm was recently updated, 
but in Ubuntu it was mesa that changed (11.1.2 -> 11.2.0; 
jessie-backports and stretch both have 11.1.3) while the bug was open.

Patch for building beignet 1.1.2-2 in jessie-backports (which should get 
rid of the annoying message, but I can't check the graphical corruption):

diff --git a/debian/control b/debian/control
index 366197c..d3ad964 100644
--- a/debian/control
+++ b/debian/control
@@ -13,12 +13,9 @@ Build-Depends:
 # 3.8 in Ubuntu); to avoid needing separate packages, build-depend
 # on both and choose in debian/rules
  libgl1-mesa-dri,
- clang-3.7,
- libclang-3.7-dev,
- llvm-3.7-dev,
- clang-3.8 [linux-any],
- libclang-3.8-dev [linux-any],
- llvm-3.8-dev [linux-any],
+ clang-3.5,
+ libclang-3.5-dev,
+ llvm-3.5-dev,
  ocl-icd-dev,
  ocl-icd-opencl-dev,
  pkg-config,