kivy/setup.py

#
# Kivy - Crossplatform NUI toolkit
# http://kivy.org/
#

import sys

from copy import deepcopy
import os
from os.path import join, dirname, sep, exists, basename
from os import walk, environ
from distutils.core import setup
from distutils.extension import Extension
from collections import OrderedDict

if sys.version > '3':

    PY3 = True
else:
    PY3 = False


def getoutput(cmd):
    import subprocess
    p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
    return p.communicate()[0]


def pkgconfig(*packages, **kw):
    flag_map = {'-I': 'include_dirs', '-L': 'library_dirs', '-l': 'libraries'}
    cmd = 'pkg-config --libs --cflags {}'.format(' '.join(packages))
    for token in getoutput(cmd).split():
        ext = token[:2].decode('utf-8')
        flag = flag_map.get(ext)
        if not flag:
            continue
        kw.setdefault(flag, []).append(token[2:].decode('utf-8'))
    return kw


# -----------------------------------------------------------------------------
# Determine on which platform we are

platform = sys.platform

# Detect 32/64bit for OSX (http://stackoverflow.com/a/1405971/798575)
if sys.platform == 'darwin':
    if sys.maxsize > 2 ** 32:
        osx_arch = 'x86_64'
    else:
        osx_arch = 'i386'

# Detect Python for android project (http://github.com/kivy/python-for-android)
ndkplatform = environ.get('NDKPLATFORM')
if ndkplatform is not None and environ.get('LIBLINK'):
    platform = 'android'
kivy_ios_root = environ.get('KIVYIOSROOT', None)
if kivy_ios_root is not None:
    platform = 'ios'
if exists('/opt/vc/include/bcm_host.h'):
    platform = 'rpi'

# -----------------------------------------------------------------------------
# Detect options
#
c_options = OrderedDict()
c_options['use_rpi'] = platform == 'rpi'
c_options['use_opengl_es2'] = None
c_options['use_opengl_debug'] = False
c_options['use_glew'] = False
c_options['use_sdl'] = False
c_options['use_sdl2'] = False
c_options['use_ios'] = False
c_options['use_mesagl'] = False
c_options['use_x11'] = False
c_options['use_gstreamer'] = False
c_options['use_avfoundation'] = platform == 'darwin'

# now check if environ is changing the default values
for key in list(c_options.keys()):
    ukey = key.upper()
    if ukey in environ:
        value = bool(int(environ[ukey]))
        print('Environ change {0} -> {1}'.format(key, value))
        c_options[key] = value

# -----------------------------------------------------------------------------
# Cython check
# on python-for-android and kivy-ios, cython usage is external
have_cython = False
if platform in ('ios', 'android'):
    print('\nCython check avoided.')
else:
    try:
        # check for cython
        from Cython.Distutils import build_ext
        have_cython = True
    except ImportError:
        print('\nCython is missing, its required for compiling kivy !\n\n')
        raise

if not have_cython:
    from distutils.command.build_ext import build_ext

# -----------------------------------------------------------------------------
# Setup classes


class KivyBuildExt(build_ext):

    def build_extensions(self):
        print('Build configuration is:')
        for opt, value in c_options.items():
            print(' * {0} = {1}'.format(opt, value))
        debug = bool(self.debug)
        print(' * debug = {0}'.format(debug))
        print('Generate config.h')
        config_h_fn = expand('graphics', 'config.h')
        config_h = '// Autogenerated file for Kivy C configuration\n'
        config_h += '#define __PY3 {0}\n'.format(int(PY3))
        for k, v in c_options.items():
            config_h += '#define __{0} {1}\n'.format(k.upper(), int(v))
        self.update_if_changed(config_h_fn, config_h)

        print('Generate config.pxi')
        config_pxi_fn = expand('graphics', 'config.pxi')
        # update the pxi only if the content changed
        config_pxi = '# Autogenerated file for Kivy Cython configuration\n'
        config_pxi += 'DEF PY3 = {0}\n'.format(int(PY3))
        for k, v in c_options.items():
            config_pxi += 'DEF {0} = {1}\n'.format(k.upper(), int(v))
        config_pxi += 'DEF DEBUG = {0}\n'.format(debug)
        self.update_if_changed(config_pxi_fn, config_pxi)

        c = self.compiler.compiler_type
        print('Detected compiler is {}'.format(c))
        if c != 'msvc':
            for e in self.extensions:
                e.extra_link_args += ['-lm']

        build_ext.build_extensions(self)

    def update_if_changed(self, fn, content):
        need_update = True
        if exists(fn):
            with open(fn) as fd:
                need_update = fd.read() != content
        if need_update:
            with open(fn, 'w') as fd:
                fd.write(content)


# -----------------------------------------------------------------------------
# extract version (simulate doc generation, kivy will be not imported)
environ['KIVY_DOC_INCLUDE'] = '1'
import kivy

# extra build commands go in the cmdclass dict {'command-name': CommandClass}
# see tools.packaging.{platform}.build.py for custom build commands for
# portable packages.  also e.g. we use build_ext command from cython if its
# installed for c extensions.
from kivy.tools.packaging.factory import FactoryBuild
cmdclass = {
    'build_factory': FactoryBuild,
    'build_ext': KivyBuildExt}

try:
    # add build rules for portable packages to cmdclass
    if platform == 'win32':
        from kivy.tools.packaging.win32.build import WindowsPortableBuild
        cmdclass['build_portable'] = WindowsPortableBuild
    elif platform == 'darwin':
        from kivy.tools.packaging.osx.build import OSXPortableBuild
        cmdclass['build_portable'] = OSXPortableBuild
except ImportError:
    print('User distribution detected, avoid portable command.')

# Detect which opengl version headers to use
if platform in ('android', 'darwin', 'ios', 'rpi'):
    c_options['use_opengl_es2'] = True
elif platform == 'win32':
    print('Windows platform detected, force GLEW usage.')
    c_options['use_glew'] = True
    c_options['use_opengl_es2'] = False
else:
    if c_options['use_opengl_es2'] is None:
        GLES = environ.get('GRAPHICS') == 'GLES'
        OPENGL = environ.get('GRAPHICS') == 'OPENGL'
        if GLES:
            c_options['use_opengl_es2'] = True
        elif OPENGL:
            c_options['use_opengl_es2'] = False
        else:
            # auto detection of GLES headers
            default_header_dirs = ['/usr/include', '/usr/local/include']
            c_options['use_opengl_es2'] = False
            for hdir in default_header_dirs:
                filename = join(hdir, 'GLES2', 'gl2.h')
                if exists(filename):
                    c_options['use_opengl_es2'] = True
                    print('NOTE: Found GLES 2.0 headers at {0}'.format(
                        filename))
                    break
            if not c_options['use_opengl_es2']:
                print('NOTE: Not found GLES 2.0 headers at: {}'.format(
                    default_header_dirs))
                print('      Please contact us if your distribution '
                    'uses an alternative path for the headers.')

print('Using this graphics system: {}'.format(
    ['OpenGL', 'OpenGL ES 2'][int(c_options['use_opengl_es2'] or False)]))

# check if we are in a kivy-ios build
if platform == 'ios':
    print('Kivy-IOS project environment detect, use it.')
    print('Kivy-IOS project located at {0}'.format(kivy_ios_root))
    print('Activate SDL compilation.')
    c_options['use_ios'] = True
    c_options['use_sdl'] = True

# detect gstreamer/sdl2, only on desktop
sdl2_flags = {}
if platform not in ('ios', 'android'):
    gst_flags = pkgconfig('gstreamer-1.0')
    if 'libraries' in gst_flags:
        c_options['use_gstreamer'] = True

    # XXX deactivated, until we are able to have sdl2 without using anything
    # related to sdl1. Both must not be used at the same time.
    # sdl2_flags = pkgconfig('sdl2', 'SDL2_ttf', 'SDL2_image', 'SDL2_mixer')
    # if 'libraries' in sdl2_flags:
    #     c_options['use_sdl2'] = True


# -----------------------------------------------------------------------------
# declare flags


def get_modulename_from_file(filename):
    filename = filename.replace(sep, '/')
    pyx = '.'.join(filename.split('.')[:-1])
    pyxl = pyx.split('/')
    while pyxl[0] != 'kivy':
        pyxl.pop(0)
    if pyxl[1] == 'kivy':
        pyxl.pop(0)
    return '.'.join(pyxl)


def expand(*args):
    return join(dirname(__file__), 'kivy', *args)


class CythonExtension(Extension):

    def __init__(self, *args, **kwargs):
        Extension.__init__(self, *args, **kwargs)
        self.cython_directives = {
            'c_string_encoding': 'utf-8',
            'profile': 'USE_PROFILE' in environ,
            'embedsignature': 'USE_EMBEDSIGNATURE' in environ}
        # XXX with pip, setuptools is imported before distutils, and change
        # our pyx to c, then, cythonize doesn't happen. So force again our
        # sources
        self.sources = args[1]


def merge(d1, *args):
    d1 = deepcopy(d1)
    for d2 in args:
        for key, value in d2.items():
            value = deepcopy(value)
            if key in d1:
                d1[key].extend(value)
            else:
                d1[key] = value
    return d1


def determine_base_flags():
    flags = {
        'libraries': [],
        'include_dirs': [],
        'extra_link_args': [],
        'extra_compile_args': []}
    if c_options['use_ios']:
        sysroot = environ.get('IOSSDKROOT', environ.get('SDKROOT'))
        if not sysroot:
            raise Exception('IOSSDKROOT is not set')
        flags['include_dirs'] += [sysroot]
        flags['extra_compile_args'] += ['-isysroot', sysroot]
        flags['extra_link_args'] += ['-isysroot', sysroot]
    elif platform == 'darwin':
        v = os.uname()
        if v[2] >= '13.0.0':
            # use xcode-select to search on the right Xcode path
            # XXX use the best SDK available instead of a specific one
            import platform as _platform
            xcode_dev = getoutput('xcode-select -p').splitlines()[0]
            sdk_mac_ver = '.'.join(_platform.mac_ver()[0].split('.')[:2])
            print('Xcode detected at {}, and using MacOSX{} sdk'.format(
                    xcode_dev, sdk_mac_ver))
            sysroot = join(xcode_dev.decode('utf-8'),
                    'Platforms/MacOSX.platform/Developer/SDKs',
                    'MacOSX{}.sdk'.format(sdk_mac_ver),
                    'System/Library/Frameworks')
        else:
            sysroot = ('/System/Library/Frameworks/'
                       'ApplicationServices.framework/Frameworks')
        flags['extra_compile_args'] += ['-F%s' % sysroot]
        flags['extra_link_args'] += ['-F%s' % sysroot]
    return flags


def determine_gl_flags():
    flags = {'libraries': []}
    if platform == 'win32':
        flags['libraries'] = ['opengl32']
    elif platform == 'ios':
        flags['libraries'] = ['GLESv2']
        flags['extra_link_args'] = ['-framework', 'OpenGLES']
    elif platform == 'darwin':
        flags['extra_link_args'] = ['-framework', 'OpenGL', '-arch', osx_arch]
        flags['extra_compile_args'] = ['-arch', osx_arch]
    elif platform.startswith('freebsd'):
        flags['include_dirs'] = ['/usr/local/include']
        flags['extra_link_args'] = ['-L', '/usr/local/lib']
        flags['libraries'] = ['GL']
    elif platform.startswith('openbsd'):
        flags['include_dirs'] = ['/usr/X11R6/include']
        flags['extra_link_args'] = ['-L', '/usr/X11R6/lib']
        flags['libraries'] = ['GL']
    elif platform == 'android':
        flags['include_dirs'] = [join(ndkplatform, 'usr', 'include')]
        flags['extra_link_args'] = ['-L', join(ndkplatform, 'usr', 'lib')]
        flags['libraries'] = ['GLESv2']
    elif platform == 'rpi':
        flags['include_dirs'] = ['/opt/vc/include',
            '/opt/vc/include/interface/vcos/pthreads',
            '/opt/vc/include/interface/vmcs_host/linux']
        flags['library_dirs'] = ['/opt/vc/lib']
        flags['libraries'] = ['bcm_host', 'EGL', 'GLESv2']
    else:
        flags['libraries'] = ['GL']
    if c_options['use_glew']:
        if platform == 'win32':
            flags['libraries'] += ['glew32']
        else:
            flags['libraries'] += ['GLEW']
    return flags


def determine_sdl():
    flags = {}
    if not c_options['use_sdl']:
        return flags

    flags['libraries'] = ['SDL', 'SDL_ttf', 'freetype', 'z', 'bz2']
    flags['include_dirs'] = []
    flags['extra_link_args'] = []
    flags['extra_compile_args'] = []

    # Paths as per homebrew (modified formula to use hg checkout)
    if c_options['use_ios']:
        # Note: on IOS, SDL is already loaded by the launcher/main.m
        # So if we add it here, it will just complain about duplicate
        # symbol, cause libSDL.a would be included in main.m binary +
        # text_sdlttf.so
        # At the result, we are linking without SDL explicitly, and add
        # -undefined dynamic_lookup
        # (/tito)
        flags['libraries'] = ['SDL_ttf', 'freetype', 'bz2']
        flags['include_dirs'] += [
            join(kivy_ios_root, 'build', 'include'),
            join(kivy_ios_root, 'build', 'include', 'SDL'),
            join(kivy_ios_root, 'build', 'include', 'freetype')]
        flags['extra_link_args'] += [
            '-L', join(kivy_ios_root, 'build', 'lib'),
            '-undefined', 'dynamic_lookup']
    else:
        flags['include_dirs'] = ['/usr/local/include/SDL']
        flags['extra_link_args'] += ['-L/usr/local/lib/']

    if platform == 'ios':
        flags['extra_link_args'] += [
            '-framework', 'Foundation',
            '-framework', 'UIKit',
            '-framework', 'AudioToolbox',
            '-framework', 'CoreGraphics',
            '-framework', 'QuartzCore',
            '-framework', 'MobileCoreServices',
            '-framework', 'ImageIO']
    elif platform == 'darwin':
        flags['extra_link_args'] += [
            '-framework', 'ApplicationServices']
    return flags


def determine_sdl2():
    flags = {}
    if not c_options['use_sdl2']:
        return flags

    sdl2_path = environ.get('KIVY_SDL2_PATH', None)

    if sdl2_flags and not sdl2_path:
        return sdl2_flags

    # no pkgconfig info, or we want to use a specific sdl2 path, so perform
    # manual configuration
    flags['libraries'] = ['SDL2', 'SDL2_ttf', 'SDL2_image', 'SDL2_mixer']
    flags['include_dirs'] = ([sdl2_path] if sdl2_path else
                             ['/usr/local/include/SDL2', '/usr/include/SDL2'])

    flags['extra_link_args'] = []
    flags['extra_compile_args'] = []
    flags['extra_link_args'] += (['-L' + sdl2_path] if sdl2_path else
                                 ['-L/usr/local/lib/'])

    # ensure headers for all the SDL2 and sub libraries are available
    libs_to_check = ['SDL', 'SDL_mixer', 'SDL_ttf', 'SDL_image']
    can_compile = True
    for lib in libs_to_check:
        found = False
        for d in flags['include_dirs']:
            fn = join(d, '{}.h'.format(lib))
            if exists(fn):
                found = True
                print('SDL2: found {} header at {}'.format(lib, fn))
                break

        if not found:
            print('SDL2: missing sub library {}'.format(lib))
            can_compile = False

    if not can_compile:
        c_options['use_sdl2'] = False
        return {}

    return flags


base_flags = determine_base_flags()
gl_flags = determine_gl_flags()

# -----------------------------------------------------------------------------
# sources to compile
# all the dependencies have been found manually with:
# grep -inr -E '(cimport|include)' kivy/graphics/context_instructions.{pxd,pyx}
graphics_dependencies = {
    'gl_redirect.h': ['common_subset.h'],
    'c_opengl.pxd': ['config.pxi', 'gl_redirect.h'],
    'buffer.pyx': ['common.pxi'],
    'context.pxd': [
        'instructions.pxd', 'texture.pxd', 'vbo.pxd',
        'c_opengl.pxd', 'c_opengl_debug.pxd'],
    'c_opengl_debug.pyx': ['common.pxi', 'c_opengl.pxd'],
    'compiler.pxd': ['instructions.pxd'],
    'compiler.pyx': ['context_instructions.pxd'],
    'context_instructions.pxd': [
        'transformation.pxd', 'instructions.pxd', 'texture.pxd'],
    'fbo.pxd': ['c_opengl.pxd', 'instructions.pxd', 'texture.pxd'],
    'fbo.pyx': [
        'config.pxi', 'opcodes.pxi', 'transformation.pxd', 'context.pxd',
        'c_opengl_debug.pxd'],
    'gl_instructions.pyx': [
        'config.pxi', 'opcodes.pxi', 'c_opengl.pxd', 'c_opengl_debug.pxd',
        'instructions.pxd'],
    'instructions.pxd': [
        'vbo.pxd', 'context_instructions.pxd', 'compiler.pxd', 'shader.pxd',
        'texture.pxd', '../_event.pxd'],
    'instructions.pyx': [
        'config.pxi', 'opcodes.pxi', 'c_opengl.pxd', 'c_opengl_debug.pxd',
        'context.pxd', 'common.pxi', 'vertex.pxd', 'transformation.pxd'],
    'opengl.pyx': ['config.pxi', 'common.pxi', 'c_opengl.pxd', 'gl_redirect.h'],
    'opengl_utils.pyx': ['opengl_utils_def.pxi', 'c_opengl.pxd'],
    'shader.pxd': ['c_opengl.pxd', 'transformation.pxd', 'vertex.pxd'],
    'shader.pyx': [
        'config.pxi', 'common.pxi', 'c_opengl.pxd', 'c_opengl_debug.pxd',
        'vertex.pxd', 'transformation.pxd', 'context.pxd'],
    'stencil_instructions.pxd': ['instructions.pxd'],
    'stencil_instructions.pyx': [
        'config.pxi', 'opcodes.pxi', 'c_opengl.pxd', 'c_opengl_debug.pxd'],
    'svg.pyx': ['config.pxi', 'common.pxi', 'texture.pxd', 'instructions.pxd',
                'vertex_instructions.pxd', 'tesselator.pxd'],
    'texture.pxd': ['c_opengl.pxd'],
    'texture.pyx': [
        'config.pxi', 'common.pxi', 'opengl_utils_def.pxi', 'context.pxd',
        'c_opengl.pxd', 'c_opengl_debug.pxd', 'opengl_utils.pxd',
        'img_tools.pxi'],
    'vbo.pxd': ['buffer.pxd', 'c_opengl.pxd', 'vertex.pxd'],
    'vbo.pyx': [
        'config.pxi', 'common.pxi', 'c_opengl_debug.pxd', 'context.pxd',
        'instructions.pxd', 'shader.pxd'],
    'vertex.pxd': ['c_opengl.pxd'],
    'vertex.pyx': ['config.pxi', 'common.pxi'],
    'vertex_instructions.pyx': [
        'config.pxi', 'common.pxi', 'vbo.pxd', 'vertex.pxd', 'instructions.pxd',
        'vertex_instructions.pxd',
        'c_opengl.pxd', 'c_opengl_debug.pxd', 'texture.pxd',
        'vertex_instructions_line.pxi'],
    'vertex_instructions_line.pxi': ['stencil_instructions.pxd']}

sources = {
    '_event.pyx': merge(base_flags, {'depends': ['properties.pxd']}),
    'properties.pyx': merge(base_flags, {'depends': ['_event.pxd']}),
    'graphics/buffer.pyx': base_flags,
    'graphics/context.pyx': merge(base_flags, gl_flags),
    'graphics/c_opengl_debug.pyx': merge(base_flags, gl_flags),
    'graphics/compiler.pyx': merge(base_flags, gl_flags),
    'graphics/context_instructions.pyx': merge(base_flags, gl_flags),
    'graphics/fbo.pyx': merge(base_flags, gl_flags),
    'graphics/gl_instructions.pyx': merge(base_flags, gl_flags),
    'graphics/instructions.pyx': merge(base_flags, gl_flags),
    'graphics/opengl.pyx': merge(base_flags, gl_flags),
    'graphics/opengl_utils.pyx': merge(base_flags, gl_flags),
    'graphics/shader.pyx': merge(base_flags, gl_flags),
    'graphics/stencil_instructions.pyx': merge(base_flags, gl_flags),
    'graphics/texture.pyx': merge(base_flags, gl_flags),
    'graphics/transformation.pyx': merge(base_flags, gl_flags),
    'graphics/vbo.pyx': merge(base_flags, gl_flags),
    'graphics/vertex.pyx': merge(base_flags, gl_flags),
    'graphics/vertex_instructions.pyx': merge(base_flags, gl_flags),
    'core/text/text_layout.pyx': base_flags,
    'graphics/tesselator.pyx': merge(base_flags, {
        'include_dirs': ['kivy/lib/libtess2/Include'],
        'c_depends': [
            'lib/libtess2/Source/bucketalloc.c',
            'lib/libtess2/Source/dict.c',
            'lib/libtess2/Source/geom.c',
            'lib/libtess2/Source/mesh.c',
            'lib/libtess2/Source/priorityq.c',
            'lib/libtess2/Source/sweep.c',
            'lib/libtess2/Source/tess.c'
        ]
    }),
    'graphics/svg.pyx': merge(base_flags, gl_flags)
}

if c_options['use_sdl']:
    sdl_flags = determine_sdl()
    sources['core/window/sdl.pyx'] = merge(
        base_flags, gl_flags, sdl_flags)
    sources['core/text/text_sdlttf.pyx'] = merge(
        base_flags, gl_flags, sdl_flags)
    sources['core/audio/audio_sdl.pyx'] = merge(
        base_flags, sdl_flags)

if c_options['use_sdl2']:
    sdl2_flags = determine_sdl2()
    if sdl2_flags:
        sources['core/window/_window_sdl2.pyx'] = merge(
            base_flags, gl_flags, sdl2_flags)
        sources['core/image/_img_sdl2.pyx'] = merge(
            base_flags, gl_flags, sdl2_flags)
        sources['core/text/_text_sdl2.pyx'] = merge(
            base_flags, gl_flags, sdl2_flags)
        sources['core/clipboard/_clipboard_sdl2.pyx'] = merge(
            base_flags, gl_flags, sdl2_flags)

if platform in ('darwin', 'ios'):
    # activate ImageIO provider for our core image
    if platform == 'ios':
        osx_flags = {'extra_link_args': [
            '-framework', 'Foundation',
            '-framework', 'UIKit',
            '-framework', 'AudioToolbox',
            '-framework', 'CoreGraphics',
            '-framework', 'QuartzCore',
            '-framework', 'ImageIO',
            '-framework', 'Accelerate']}
    else:
        osx_flags = {'extra_link_args': [
            '-framework', 'ApplicationServices']}
    sources['core/image/img_imageio.pyx'] = merge(
        base_flags, osx_flags)

if c_options['use_avfoundation']:
    import platform as _platform
    mac_ver = [int(x) for x in _platform.mac_ver()[0].split('.')[:2]]
    if mac_ver >= [10, 7]:
        osx_flags = {
            'extra_link_args': ['-framework', 'AVFoundation'],
            'extra_compile_args': ['-ObjC++'],
            'depends': ['core/camera/camera_avfoundation_implem.m']}
        sources['core/camera/camera_avfoundation.pyx'] = merge(
            base_flags, osx_flags)
    else:
        print('AVFoundation cannot be used, OSX >= 10.7 is required')

if c_options['use_rpi']:
    sources['lib/vidcore_lite/egl.pyx'] = merge(
            base_flags, gl_flags)
    sources['lib/vidcore_lite/bcm.pyx'] = merge(
            base_flags, gl_flags)

if c_options['use_x11']:
    sources['core/window/window_x11.pyx'] = merge(
        base_flags, gl_flags, {
            # FIXME add an option to depend on them but not compile them
            # cause keytab is included in core, and core is included in
            # window_x11
            #
            #'depends': [
            #    'core/window/window_x11_keytab.c',
            #    'core/window/window_x11_core.c'],
            'libraries': ['Xrender', 'X11']})

if c_options['use_gstreamer']:
    sources['lib/gstplayer/_gstplayer.pyx'] = merge(
        base_flags, gst_flags, {
            'depends': ['lib/gstplayer/_gstplayer.h']})


# -----------------------------------------------------------------------------
# extension modules

def get_dependencies(name, deps=None):
    if deps is None:
        deps = []
    for dep in graphics_dependencies.get(name, []):
        if dep not in deps:
            deps.append(dep)
            get_dependencies(dep, deps)
    return deps


def resolve_dependencies(fn, depends):
    fn = basename(fn)
    deps = []
    get_dependencies(fn, deps)
    get_dependencies(fn.replace('.pyx', '.pxd'), deps)
    return [expand('graphics', x) for x in deps]


def get_extensions_from_sources(sources):
    ext_modules = []
    if environ.get('KIVY_FAKE_BUILDEXT'):
        print('Fake build_ext asked, will generate only .h/.c')
        return ext_modules
    for pyx, flags in sources.items():
        is_graphics = pyx.startswith('graphics')
        pyx = expand(pyx)
        depends = [expand(x) for x in flags.pop('depends', [])]
        c_depends = [expand(x) for x in flags.pop('c_depends', [])]
        if not have_cython:
            pyx = '%s.c' % pyx[:-4]
        if is_graphics:
            depends = resolve_dependencies(pyx, depends)
        f_depends = [x for x in depends if x.rsplit('.', 1)[-1] in (
            'c', 'cpp', 'm')]
        module_name = get_modulename_from_file(pyx)
        flags_clean = {'depends': depends}
        for key, value in flags.items():
            if len(value):
                flags_clean[key] = value
        ext_modules.append(CythonExtension(module_name,
            [pyx] + f_depends + c_depends, **flags_clean))
    return ext_modules

ext_modules = get_extensions_from_sources(sources)

# -----------------------------------------------------------------------------
# automatically detect data files
data_file_prefix = 'share/kivy-'
examples = {}
examples_allowed_ext = ('readme', 'py', 'wav', 'png', 'jpg', 'svg', 'json',
                        'avi', 'gif', 'txt', 'ttf', 'obj', 'mtl', 'kv')
for root, subFolders, files in walk('examples'):
    for fn in files:
        ext = fn.split('.')[-1].lower()
        if ext not in examples_allowed_ext:
            continue
        filename = join(root, fn)
        directory = '%s%s' % (data_file_prefix, dirname(filename))
        if not directory in examples:
            examples[directory] = []
        examples[directory].append(filename)

# -----------------------------------------------------------------------------
# setup !
setup(
    name='Kivy',
    version=kivy.__version__,
    author='Kivy Crew',
    author_email='kivy-dev@googlegroups.com',
    url='http://kivy.org/',
    license='MIT',
    description=(
        'A software library for rapid development of '
        'hardware-accelerated multitouch applications.'),
    ext_modules=ext_modules,
    cmdclass=cmdclass,
    packages=[
        'kivy',
        'kivy.adapters',
        'kivy.core',
        'kivy.core.audio',
        'kivy.core.camera',
        'kivy.core.clipboard',
        'kivy.core.image',
        'kivy.core.gl',
        'kivy.core.spelling',
        'kivy.core.text',
        'kivy.core.video',
        'kivy.core.window',
        'kivy.effects',
        'kivy.ext',
        'kivy.graphics',
        'kivy.garden',
        'kivy.input',
        'kivy.input.postproc',
        'kivy.input.providers',
        'kivy.lib',
        'kivy.lib.osc',
        'kivy.lib.gstplayer',
        'kivy.lib.vidcore_lite',
        'kivy.modules',
        'kivy.network',
        'kivy.storage',
        'kivy.tools',
        'kivy.tools.packaging',
        'kivy.tools.packaging.pyinstaller_hooks',
        'kivy.tools.highlight',
        'kivy.extras',
        'kivy.tools.extensions',
        'kivy.uix', ],
    package_dir={'kivy': 'kivy'},
    package_data={'kivy': [
        '*.pxd',
        'core/text/*.pxd',
        'graphics/*.pxd',
        'lib/vidcore_lite/*.pxd',
        'data/*.kv',
        'data/*.json',
        'data/fonts/*.ttf',
        'data/images/*.png',
        'data/images/*.jpg',
        'data/images/*.gif',
        'data/images/*.atlas',
        'data/keyboards/*.json',
        'data/logo/*.png',
        'data/glsl/*.png',
        'data/glsl/*.vs',
        'data/glsl/*.fs',
        'tools/highlight/*.vim',
        'tools/highlight/*.el',
        'tools/packaging/README.txt',
        'tools/packaging/win32/kivy.bat',
        'tools/packaging/win32/kivyenv.sh',
        'tools/packaging/win32/README.txt',
        'tools/packaging/osx/Info.plist',
        'tools/packaging/osx/InfoPlist.strings',
        'tools/packaging/osx/kivy.sh']},
    data_files=list(examples.items()),
    classifiers=[
        'Development Status :: 5 - Production/Stable',
        'Environment :: MacOS X',
        'Environment :: Win32 (MS Windows)',
        'Environment :: X11 Applications',
        'Intended Audience :: Developers',
        'Intended Audience :: End Users/Desktop',
        'Intended Audience :: Information Technology',
        'Intended Audience :: Science/Research',
        'License :: OSI Approved :: MIT License',
        'Natural Language :: English',
        'Operating System :: MacOS :: MacOS X',
        'Operating System :: Microsoft :: Windows',
        'Operating System :: POSIX :: BSD :: FreeBSD',
        'Operating System :: POSIX :: Linux',
        'Programming Language :: Python :: 2.7',
        'Programming Language :: Python :: 3.3',
        'Programming Language :: Python :: 3.4',
        'Topic :: Artistic Software',
        'Topic :: Games/Entertainment',
        'Topic :: Multimedia :: Graphics :: 3D Rendering',
        'Topic :: Multimedia :: Graphics :: Capture :: Digital Camera',
        'Topic :: Multimedia :: Graphics :: Presentation',
        'Topic :: Multimedia :: Graphics :: Viewers',
        'Topic :: Multimedia :: Sound/Audio :: Players :: MP3',
        'Topic :: Multimedia :: Video :: Display',
        'Topic :: Scientific/Engineering :: Human Machine Interfaces',
        'Topic :: Scientific/Engineering :: Visualization',
        'Topic :: Software Development :: Libraries :: Application Frameworks',
        'Topic :: Software Development :: User Interfaces'],
    dependency_links=[
        'https://github.com/kivy-garden/garden/archive/master.zip'],
    install_requires=['Kivy-Garden==0.1.1'])