Bug#757961: Does not work with GCC 4.9, default GCC in Jessie

[Graham Inggs]

Just for reference, nvidia-cuda-toolkit 6.0.37 also prevents the use of 
gcc > 4.8 in /usr/include/host_config.h and therefore needs the same patch.
In fact, the only difference between /usr/include/host_config.h in 
5.5.22 and 6.0.37 is that the version in 6.0.37 now allows ICC 13.1 
instead of ICC 12.1.

Tomasz: do you need this uploaded before you can upload pycuda 2014.1?