--embed mode: fix Py3, floating point on FreeBSD
--embed mode: fix Py3, floating point on FreeBSD

Incorporate the changes of cython_freeze:
* fix when compiling on Python 3 (Issue #434)
* fix floating point issues on FreeBSD

bhy/cython-haoyu,bhy/cython-haoyu,bhy/cython-haoyu,bhy/cython-haoyu