unnecessary -fno-stack-protector from hardcoded build options (also
prompted by steven@), do not build on arm platforms as libffi lacks
the necessary closure support; ok sturm@
> ctypes is an advanced ffi (Foreign Function Interface) package for
> Python 2.3 and higher.
>
> ctypes allows to call functions exposed from dlls/shared libraries and
> has extensive facilities to create, access and manipulate simple and
> complicated C data types in Python - in other words: wrap libraries in
> pure Python. It is even possible to implement C callback functions in
> pure Python.
ok alek@