work around missing stdint.h in some MSVC versions
work around missing stdint.h in some MSVC versions

fabianrost84/cython,da-woods/cython,fabianrost84/cython,da-woods/cython,fabianrost84/cython,scoder/cython,cython/cython,cython/cython,scoder/cython,cython/cython,scoder/cython,scoder/cython,cython/cython,ChristopherHogan/cython,ChristopherHogan/cython,da-woods/cython,da-woods/cython,fabianrost84/cython,fabianrost84/cython,ChristopherHogan/cython