CUDA incompatible with my gcc version

I have troubles compiling some of the examples shipped with CUDA SDK.I have installed the developers driver (version 270.41.19) and the CUDA toolkit,then finally the SDK (both the 4.0.17 version).

Initially it didn't compile at all giving:

error -- unsupported GNU version! gcc 4.5 and up are not supported!

I found the line responsible in 81:/usr/local/cuda/include/host_config.h and changed it to:

//#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6)

from that point on I got only a few of the examples to compile, it stops with:

In file included from /usr/include/c++/4.6/x86_64-linux-gnu/bits/gthr.h:162:0,             from /usr/include/c++/4.6/ext/atomicity.h:34,             from /usr/include/c++/4.6/bits/ios_base.h:41,             from /usr/include/c++/4.6/ios:43,             from /usr/include/c++/4.6/ostream:40,             from /usr/include/c++/4.6/iterator:64,             from /usr/local/cuda/include/thrust/iterator/iterator_categories.h:38,             from /usr/local/cuda/include/thrust/device_ptr.h:26,             from /usr/local/cuda/include/thrust/device_malloc_allocator.h:27,             from /usr/local/cuda/include/thrust/device_vector.h:26,             from lineOfSight.cu:37:/usr/include/c++/4.6/x86_64-linux-gnu/bits/gthr-default.h:251:1: error: pasting         "__gthrw_" and "/* Android's C library does not provide pthread_cancel, check for`pthread_create' instead.  */" does not give a valid preprocessing tokenmake[1]: *** [obj/x86_64/release/lineOfSight.cu.o] Error 1

As some of the examples compile I reckon this is not a driver problem, but rather must have something to do with an unsupported gcc version. Downgrading is not an option as gcc4.6 has a whole system as a dependency at this point...