Bug#946422: silx: autopkgtest regression: pocl error

[PICCA Frederic-Emmanuel]

I decided to concentrate myself on one opencl test (addition)
So I deactivated all other test by commenting the test in silx/opencl/__init__.py

If I do not import silxs.io, this test works

(sid_amd64-dchroot)picca at barriere:~$ PYOPENCL_COMPILER_OUTPUT=1 PYTHONPATH=silx-0.11.0+dfsg/.pybuild/cpython3_3.7_silx/build python3 test.py -v
.Maximum valid workgroup size 2048 on device <pyopencl.Device 'pthread-Intel(R) Xeon(R) CPU E5-2640 v2 @ 2.00GHz' on 'Portable Computing Language' at 0x12b5d30>

----------------------------------------------------------------------
Ran 1 test in 0.030s

OK


If I add silxs.io, it fails

(sid_amd64-dchroot)picca at barriere:~$ PYOPENCL_COMPILER_OUTPUT=1 PYTHONPATH=silx-0.11.0+dfsg/.pybuild/cpython3_3.7_silx/build python3 test.py -v
pocl error: lt_dlopen("(null)") or lt_dlsym() failed with 'can't close resident module'.
note: missing symbols in the kernel binary might be reported as 'file not found' errors.
Aborted


so this test is ok in order to investigate this issue.