Please could someone suggest the most likely reason why current NEST (v2.16.0) appears to install ok (tutorials tested work) but fails during make installcheck for pynest tests: 

$ make installcheck

Phase 7: Running PyNEST tests.

  Using nosetests.

  [cajal:07463] Failing at address: 0x44000099
  [cajal:07463] *** End of error message ***
Segmentation fault (core dumped)

  PyNEST tests: 
     Passed: 0
     Skipped: 0
     Failed: 0
/home/julianb/Documents/NEST/share/nest/extras/do_tests.sh: 790: /home/julianb/Documents/NEST/share/nest/extras/do_tests.sh: arithmetic expression: expecting primary: " 363 +  "
CMakeFiles/installcheck.dir/build.make:57: recipe for target 'CMakeFiles/installcheck' failed
make[3]: *** [CMakeFiles/installcheck] Error 2
CMakeFiles/Makefile2:99: recipe for target 'CMakeFiles/installcheck.dir/all' failed
make[2]: *** [CMakeFiles/installcheck.dir/all] Error 2
CMakeFiles/Makefile2:106: recipe for target 'CMakeFiles/installcheck.dir/rule' failed
make[1]: *** [CMakeFiles/installcheck.dir/rule] Error 2
Makefile:208: recipe for target 'installcheck' failed
make: *** [installcheck] Error 2

Current setup: ubuntu 16.04, python 2.7.12, and nose 1.3.7.