python/config/python.py at develop · XLTools/python · GitHub

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# Distributed under the Boost Software License, Version 1.0.

# (See accompanying file LICENSE_1_0.txt or copy at

# http://www.boost.org/LICENSE_1_0.txt)

from . import ui

def add_options(vars):

ui.add_option('--python', help='the python executable')

def check(context):

python_source_file = r"""

// If defined, enforces linking againg PythonXXd.lib, which

// is usually not included in Python environments.

#undef _DEBUG

#include "Python.h"

int main()

{

Py_Initialize();

Py_Finalize();

return 0;

}

"""

import platform

import subprocess

import re, os

def check_python(cmd):

return subprocess.check_output([python, '-c', cmd]).strip()

def check_sysconfig(cmd):

r = check_python('import distutils.sysconfig as c; print(c.%s)'%cmd)

return r if r != 'None' else ''

context.Message('Checking for Python...')

python = context.env.GetOption('python') or 'python'

context.env['PYTHON'] = python

incpath = check_sysconfig('get_python_inc()')

context.env.AppendUnique(CPPPATH=[incpath])

if platform.system() == 'Windows':

version = check_python('import sys; print("%d%d"%sys.version_info[0:2])')

prefix = check_python('import sys; print(sys.prefix)')

libfile = os.path.join(prefix, 'libs', 'python%s.lib'%version)

libpath = os.path.join(prefix, 'libs')

lib = 'python%s'%version

context.env.AppendUnique(LIBS=[lib])

else:

libpath = check_sysconfig('get_config_var("LIBDIR")')

libfile = check_sysconfig('get_config_var("LIBRARY")')

match = re.search('(python.*)\.(a|so|dylib)', libfile)

lib = None

if match:

lib = match.group(1)

context.env.AppendUnique(PYTHONLIBS=[lib])

if match.group(2) == 'a':

flags = check_sysconfig('get_config_var("LINKFORSHARED")')

if flags is not None:

context.env.AppendUnique(LINKFLAGS=flags.split())

context.env.AppendUnique(LIBPATH=[libpath])

oldlibs = context.AppendLIBS([lib])

flags = check_sysconfig('get_config_var("MODLIBS")')

flags += ' ' + check_sysconfig('get_config_var("SHLIBS")')

flags = [f[2:] for f in flags.strip().split() if f.startswith('-l')]

if flags:

context.AppendLIBS([flags])

result = context.TryLink(python_source_file,'.cpp')

if not result and context.env['PLATFORM'] == 'darwin':

# Sometimes we need some extra stuff on Mac OS

frameworkDir = libpath # search up the libDir tree for the proper home for frameworks

while frameworkDir and frameworkDir != "/":

frameworkDir, d2 = os.path.split(frameworkDir)

if d2 == "Python.framework":

if not "Python" in os.listdir(os.path.join(frameworkDir, d2)):

context.Result(0)

print((

"Expected to find Python in framework directory %s, but it isn't there"

% frameworkDir))

return False

break

context.env.AppendUnique(LINKFLAGS="-F%s" % frameworkDir)

result = context.TryLink(python_source_file,'.cpp')

if not result:

context.Result(0)

print("Cannot link program with Python.")

return False

if context.env['PLATFORM'] == 'darwin':

context.env['LDMODULESUFFIX'] = '.so'

context.Result(1)

context.SetLIBS(oldlibs)

context.env.AppendUnique(PYTHONLIBS=[lib] + flags)

return True

python/config/python.py at develop · XLTools/python · GitHub

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