scrypt setup script...

setup.py

#!/usr/bin/env python
from distutils.core import setup, Extension

import sys
import platform
import os

includes = []
library_dirs = []

if sys.platform.startswith('linux'):
  if os.getenv('SCRYPT_BUILDING_FOR_ANDROID') == '1':
    # This envar is set by the Kivy python-for-android build recipe.
    # Android is a Linux, but it lacks some things, so I'm going to assume nothing.
    # (It has no librt, no sysinfo...)
    define_macros = []
    libraries = [] # libcrypto.a must be statically linked
  else:
    # other Linux
    define_macros = [('HAVE_CLOCK_GETTIME', '1'),
                     ('HAVE_LIBRT', '1'),
                     ('HAVE_POSIX_MEMALIGN', '1'),
                     ('HAVE_STRUCT_SYSINFO', '1'),
                     ('HAVE_STRUCT_SYSINFO_MEM_UNIT', '1'),
                     ('HAVE_STRUCT_SYSINFO_TOTALRAM', '1'),
                     ('HAVE_SYSINFO', '1'),
                     ('HAVE_SYS_SYSINFO_H', '1'),
                     ('_FILE_OFFSET_BITS', '64')]
    libraries = ['crypto', 'rt']
elif sys.platform.startswith('win32'):
    define_macros = []
    library_dirs = ['c:\OpenSSL-Win32\lib\MinGW']
    libraries = ['eay32']
    includes = ['c:\OpenSSL-Win32\include']
elif sys.platform.startswith('darwin') and platform.mac_ver()[0] < '10.6':
    define_macros = [('HAVE_SYSCTL_HW_USERMEM', '1')]
    libraries = ['crypto']
else:
    define_macros = [('HAVE_POSIX_MEMALIGN', '1'),
                     ('HAVE_SYSCTL_HW_USERMEM', '1')]
    libraries = ['crypto']


scrypt_module = Extension('scrypt',
                          sources=['src/scrypt{0}.c'.format(platform.python_version_tuple()[0]),
                                   'scrypt-1.1.6/lib/crypto/crypto_aesctr.c',
                                   'scrypt-1.1.6/lib/crypto/crypto_scrypt-nosse.c',
                                   'scrypt-1.1.6/lib/crypto/sha256.c',
                                   'scrypt-1.1.6/lib/scryptenc/scryptenc.c',
                                   'scrypt-1.1.6/lib/scryptenc/scryptenc_cpuperf.c',
                                   'scrypt-1.1.6/lib/util/memlimit.c',
                                   'scrypt-1.1.6/lib/util/warn.c'],
                          include_dirs=['scrypt-1.1.6',
                                        'scrypt-1.1.6/lib',
                                        'scrypt-1.1.6/lib/scryptenc',
                                        'scrypt-1.1.6/lib/crypto',
                                        'scrypt-1.1.6/lib/util'] + includes,
                          define_macros=[('HAVE_CONFIG_H', None)] + define_macros,
                          library_dirs=library_dirs,
                          libraries=libraries)

setup(name='scrypt',
      version='0.5.5',
      description='Bindings for the scrypt key derivation function library',
      author='Magnus Hallin',
      author_email='[email protected]',
      url='http://bitbucket.org/mhallin/py-scrypt',
      ext_modules=[scrypt_module],
      classifiers=['Development Status :: 4 - Beta',
                   'Programming Language :: Python :: 2',
                   'Programming Language :: Python :: 3',
                   'Topic :: Security :: Cryptography',
                   'Topic :: Software Development :: Libraries'],
      license='2-clause BSD',
      long_description=open('README.markdown').read())