OpenCL compilation fail on Ubuntu 14.04

[ricardborras]

Protonect with OpenCL enabled (as detected by cmake CMakeLists) fails to compile due to SSE instructions not enabled. To solve it, I added this lines

set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS} "-msse3")
set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "-msse3")

into CMakeLists.txt (inside IF(ENABLE_OPENCL AND OPENCL_FOUND))

[floe]

For Intel GPUs, this works for me even without the additional compiler flags. Are you using an NVidia GPU?

[ricardborras]

No, I am using a Intel Express embedded graphic card

[xlz]

Please provide specific error messages during failure.

[xlz]

Fixed by #429. This was caused by direct usage of _mm_mfence() in old cl.hpp.

[floe]

Should be fixed by #429, please re-test with latest master and re-open if necessary.