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How to use find_header method in autotest

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config_win.py

Source:config_win.py

1"""Config on Windows"""2# **** The search part is broken. For instance, the png Visual Studio project3# places to dll in a directory not checked by this module.4try:5    from setup_win_common import get_definitions6except:7    from buildconfig.setup_win_common import get_definitions8import os, sys9import re10from glob import glob11from distutils.sysconfig import get_python_inc12try:13    raw_input14except NameError:15    raw_input = input16def get_ptr_size():17    return 64 if sys.maxsize > 2**32 else 3218def as_machine_type(size):19    """Return pointer bit size as a Windows machine type"""20    if size == 32:21        return "x86"22    if size == 64:23        return "x64"24    raise BuildError("Unknown pointer size {}".format(size))25def get_machine_type():26    return as_machine_type(get_ptr_size())27class Dependency(object):28    huntpaths = ['..', '..\\..', '..\\*', '..\\..\\*']29    inc_hunt = ['include']30    lib_hunt = ['VisualC\\SDL\\Release', 'VisualC\\Release', 'Release', 'lib']31    check_hunt_roots = True32    def __init__(self, name, wildcards, libs=None, required=0, find_header='', find_lib=''):33        if libs is None:34            libs = []35        self.name = name36        self.wildcards = wildcards37        self.required = required38        self.paths = []39        self.path = None40        self.inc_dir = None41        self.lib_dir = None42        self.find_header = find_header43        if not find_lib and libs:44            self.find_lib = "%s\.(a|lib)" % re.escape(libs[0])45        else:46            self.find_lib = find_lib47        self.libs = libs48        self.found = False49        self.cflags = ''50        self.prune_info = []51        self.fallback_inc = None52        self.fallback_lib = None53    def hunt(self):54        parent = os.path.abspath('..')55        for p in self.huntpaths:56            for w in self.wildcards:57                found = glob(os.path.join(p, w))58                found.sort() or found.reverse()  #reverse sort59                for f in found:60                    if f[:5] == '..'+os.sep+'..' and \61                        os.path.abspath(f)[:len(parent)] == parent:62                        continue63                    if os.path.isdir(f):64                        self.paths.append(f)65    def choosepath(self, print_result=True):66        if not self.paths:67            if self.fallback_inc and not self.inc_dir:68                self.inc_dir = self.fallback_inc[0]69            if self.fallback_lib and not self.lib_dir:70                self.lib_dir = self.fallback_lib[0]71                self.libs[0] = os.path.splitext(self.fallback_lib[2])[0]72            if self.inc_dir and self.lib_dir:73                if print_result:74                    print ("Path for %s found." % self.name)75                return True76            if print_result:77                print ("Path for %s not found." % self.name)78                for info in self.prune_info:79                    print(info)80                if self.required:81                    print ('Too bad that is a requirement! Hand-fix the "Setup"')82            return False83        elif len(self.paths) == 1:84            self.path = self.paths[0]85            if print_result:86                print ("Path for %s: %s" % (self.name, self.path))87        else:88            print ("Select path for %s:" % self.name)89            for i in range(len(self.paths)):90                print ("  %i=%s" % (i + 1, self.paths[i]))91            print ("  %i = <Nothing>" % 0)92            choice = raw_input("Select 0-%i (1=default):" % len(self.paths))93            if not choice: choice = 194            else: choice = int(choice)95            if(choice):96                self.path = self.paths[choice-1]97        return True98    def matchfile(self, path, match):99        try:100            entries = os.listdir(path)101        except:102            pass103        else:104            for e in entries:105                if match(e) and os.path.isfile(os.path.join(path, e)):106                    return e107    def findhunt(self, base, paths, header_match=None, lib_match=None):108        for h in paths:109            hh = os.path.join(base, h)110            if header_match:111                header_file = self.matchfile(hh, header_match)112                if not header_file:113                    continue114            else:115                header_file = None116            if lib_match:117                lib_file = self.matchfile(hh, lib_match)118                if not lib_file:119                    continue120            else:121                lib_file = None122            if os.path.isdir(hh):123                return hh.replace('\\', '/'), header_file, lib_file124    def prunepaths(self):125        lib_match = re.compile(self.find_lib, re.I).match if self.find_lib else None126        header_match = re.compile(self.find_header, re.I).match if self.find_header else None127        prune = []128        for path in self.paths:129            inc_info = self.findhunt(path, Dependency.inc_hunt, header_match=header_match)130            lib_info = self.findhunt(path, Dependency.lib_hunt, lib_match=lib_match)131            if not inc_info or not lib_info:132                if inc_info:133                    self.prune_info.append('...Found include dir but no library dir in %s.' % (134                          path))135                    self.fallback_inc = inc_info136                if lib_info:137                    self.prune_info.append('...Found library dir but no include dir in %s.' % (138                          path))139                    self.fallback_lib = lib_info140                prune.append(path)141            else:142                self.inc_dir = inc_info[0]143                self.lib_dir = lib_info[0]144                self.libs[0] = os.path.splitext(lib_info[2])[0]145        self.paths = [p for p in self.paths if p not in prune]146    def configure(self):147        self.hunt()148        if self.check_hunt_roots:149            self.paths.extend(self.huntpaths)150        self.prunepaths()151        self.choosepath()152        if self.path:153            lib_match = re.compile(self.find_lib, re.I).match if self.find_lib else None154            header_match = re.compile(self.find_header, re.I).match if self.find_header else None155            inc_info = self.findhunt(self.path, Dependency.inc_hunt, header_match=header_match)156            lib_info = self.findhunt(self.path, Dependency.lib_hunt, lib_match=lib_match)157            if inc_info:158                self.inc_dir = inc_info[0]159            if lib_info:160                self.lib_info = lib_info[0]161                if lib_info[2]:162                    self.libs[0] = os.path.splitext(lib_info[2])[0]163        if self.lib_dir and self.inc_dir:164            print("...Library directory for %s: %s" % (self.name, self.lib_dir))165            print("...Include directory for %s: %s" % (self.name, self.inc_dir))166            self.found = True167class DependencyPython(object):168    def __init__(self, name, module, header):169        self.name = name170        self.lib_dir = ''171        self.inc_dir = ''172        self.libs = []173        self.cflags = ''174        self.found = False175        self.ver = '0'176        self.module = module177        self.header = header178    def configure(self):179        self.found = True180        if self.module:181            try:182                self.ver = __import__(self.module).__version__183            except ImportError:184                self.found = False185        if self.found and self.header:186            fullpath = os.path.join(get_python_inc(0), self.header)187            if not os.path.isfile(fullpath):188                found = 0189            else:190                self.inc_dir = os.path.split(fullpath)[0]191        if self.found:192            print ("%-8.8s: found %s" % (self.name, self.ver))193        else:194            print ("%-8.8s: not found" % self.name)195class DependencyDLL(Dependency):196    def __init__(self, dll_regex, lib=None, wildcards=None, libs=None, link=None):197        if lib is None:198            lib = link.libs[0]199        Dependency.__init__(self, 'COPYLIB_' + lib, wildcards, libs)200        self.lib_name = lib201        self.test = re.compile(dll_regex, re.I).match202        self.lib_dir = '_'203        self.link = link204    def configure(self):205        if not self.path:206            if (self.link is None or not self.link.path) and self.wildcards:207                self.hunt()208                self.choosepath(print_result=False)209            else:210                self.path = self.link.path211        if self.path is not None:212            self.hunt_dll(self.lib_hunt, self.path)213        elif self.check_hunt_roots:214            self.check_roots()215        if self.lib_dir != '_':216            print ("DLL for %s: %s" % (self.lib_name, self.lib_dir))217            self.found = True218        else:219            print ("No DLL for %s: not found!" % (self.lib_name))220            if self.required:221                print ('Too bad that is a requirement! Hand-fix the "Setup"')222    def check_roots(self):223        parent = os.path.abspath('..')224        for p in self.huntpaths:225            if self.hunt_dll(self.lib_hunt, p):226                return True227        return False228    def hunt_dll(self, search_paths, root):229        for dir in search_paths:230            path = os.path.join(root, dir)231            try:232                entries = os.listdir(path)233            except:234                pass235            else:236                for e in entries:237                    if self.test(e) and os.path.isfile(os.path.join(path, e)):238                        # Found239                        self.lib_dir = os.path.join(path, e).replace('\\', '/')240                        return True241        return False242class DependencyDummy(object):243    def __init__(self, name):244        self.name = name245        self.inc_dir = None246        self.lib_dir = None247        self.libs = []248        self.found = True249        self.cflags = ''250    def configure(self):251        pass252class DependencyWin(object):253    def __init__(self, name, cflags):254        self.name = name255        self.inc_dir = None256        self.lib_dir = None257        self.libs = []258        self.found = True259        self.cflags = cflags260    def configure(self):261        pass262class DependencyGroup(object):263    def __init__(self):264        self.dependencies =[]265        self.dlls = []266    def add(self, name, lib, wildcards, dll_regex, libs=None, required=0, find_header='', find_lib=''):267        if libs is None:268            libs = []269        if dll_regex:270            dep = Dependency(name, wildcards, [lib], required, find_header, find_lib)271            self.dependencies.append(dep)272            dll = DependencyDLL(dll_regex, link=dep, libs=libs)273            self.dlls.append(dll)274            dep.dll = dll275        else:276            dep = Dependency(name, wildcards, [lib] + libs, required, find_header, find_lib)277            self.dependencies.append(dep)278        return dep279    def add_win(self, name, cflags):280        self.dependencies.append(DependencyWin(name, cflags))281    def add_dll(self, dll_regex, lib=None, wildcards=None, libs=None, link_lib=None):282        link = None283        if link_lib is not None:284            name = 'COPYLIB_' + link_lib285            for d in self.dlls:286                if d.name == name:287                    link = d288                    break289            else:290                raise KeyError("Link lib %s not found" % link_lib)291        dep = DependencyDLL(dll_regex, lib, wildcards, libs, link)292        self.dlls.append(dep)293        return dep294    def add_dummy(self, name):295        self.dependencies.append(DependencyDummy(name))296    def find(self, name):297        for dep in self:298            if dep.name == name:299                return dep300    def configure(self):301        for d in self.dependencies:302            if not getattr(d, '_configured', False):303                d.configure()304                d._configured = True305        for d in self.dlls:306            if not getattr(d, '_configured', False):307                d.configure()308                d._configured = True309                # create a lib310                if d.found and d.link and not d.link.lib_dir:311                    try:312                        from . import vstools313                    except ImportError:314                        from buildconfig import vstools315                    from os.path import splitext316                    nonext_name = splitext(d.lib_dir)[0]317                    def_file = '%s.def' % nonext_name318                    basename = os.path.basename(nonext_name)319                    print('Building lib from %s: %s.lib...' % (320                        os.path.basename(d.lib_dir),321                        basename322                    ))323                    vstools.dump_def(d.lib_dir, def_file=def_file)324                    vstools.lib_from_def(def_file)325                    d.link.lib_dir = os.path.dirname(d.lib_dir)326                    d.link.libs[0] = basename327                    d.link.configure()328    def __iter__(self):329        for d in self.dependencies:330            yield d331        for d in self.dlls:332            yield d333def _add_sdl2_dll_deps(DEPS):334    # MIXER335    DEPS.add_dll(r'(libvorbis-0|vorbis)\.dll$', 'vorbis', ['libvorbis-[1-9].*'],336                 ['ogg'])337    DEPS.add_dll(r'(libvorbisfile-3|vorbisfile)\.dll$', 'vorbisfile',338                 link_lib='vorbis', libs=['vorbis'])339    DEPS.add_dll(r'(libogg-0|ogg)\.dll$', 'ogg', ['libogg-[1-9].*'])340    DEPS.add_dll(r'(lib)?FLAC[-0-9]*\.dll$', 'flac', ['*FLAC-[0-9]*'])341    DEPS.add_dll(r'(lib)?modplug[-0-9]*\.dll$', 'modplug', ['*modplug-[0-9]*'])342    DEPS.add_dll(r'(lib)?mpg123[-0-9]*\.dll$', 'mpg123', ['*mpg123-[0-9]*'])343    DEPS.add_dll(r'(lib)?opus[-0-9]*\.dll$', 'opus', ['*opus-[0-9]*'])344    DEPS.add_dll(r'(lib)?opusfile[-0-9]*\.dll$', 'opusfile', ['*opusfile-[0-9]*'])345    # IMAGE346    DEPS.add_dll(r'(lib){0,1}tiff[-0-9]*\.dll$', 'tiff', ['tiff-[0-9]*'], ['jpeg', 'z'])347    DEPS.add_dll(r'(z|zlib1)\.dll$', 'z', ['zlib-[1-9].*'])348    DEPS.add_dll(r'(lib)?webp[-0-9]*\.dll$', 'webp', ['*webp-[0-9]*'])349def setup(sdl2):350    DEPS = DependencyGroup()351    if not sdl2:352        DEPS.add('SDL', 'SDL', ['SDL-[1-9].*'], r'(lib){0,1}SDL\.dll$', required=1,353                 find_header='SDL\.h')354        DEPS.add('FONT', 'SDL_ttf', ['SDL_ttf-[2-9].*'], r'(lib){0,1}SDL_ttf\.dll$', ['SDL', 'z'],355                 find_header='SDL_ttf\.h')356        DEPS.add('IMAGE', 'SDL_image', ['SDL_image-[1-9].*'], r'(lib){0,1}SDL_image\.dll$',357                 ['SDL', 'jpeg', 'png', 'tiff'], 0, find_header='SDL_image\.h'),358        DEPS.add('MIXER', 'SDL_mixer', ['SDL_mixer-[1-9].*'], r'(lib){0,1}SDL_mixer\.dll$',359                 ['SDL', 'vorbisfile'], find_header='SDL_mixer\.h')360        DEPS.add('PNG', 'png', ['libpng-[1-9].*'], r'(png|libpng)[-0-9]*\.dll$', ['z'])361        DEPS.add('JPEG', 'jpeg', ['jpeg-[6-9]*'], r'(lib){0,1}jpeg[-0-9]*\.dll$')362        DEPS.add('PORTMIDI', 'portmidi', ['portmidi'], r'portmidi\.dll$', find_header='portmidi\.h')363        #DEPS.add('PORTTIME', 'porttime', ['porttime'], r'porttime\.dll$')364        DEPS.add_dummy('PORTTIME')365        DEPS.add('FREETYPE', 'freetype', ['freetype-[1-9].*'], r'(lib){0,1}freetype[-0-9]*\.dll$',366                 find_header='ft2build\.h', find_lib='(lib)?freetype[-0-9]*\.lib')367        DEPS.configure()368        DEPS.add_dll(r'(lib){0,1}tiff[-0-9]*\.dll$', 'tiff', ['tiff-[3-9].*'], ['jpeg', 'z'])369        DEPS.add_dll(r'(z|zlib1)\.dll$', 'z', ['zlib-[1-9].*'])370        DEPS.add_dll(r'(libvorbis-0|vorbis)\.dll$', 'vorbis', ['libvorbis-[1-9].*'],371                     ['ogg'])372        DEPS.add_dll(r'(libvorbisfile-3|vorbisfile)\.dll$', 'vorbisfile',373                     link_lib='vorbis', libs=['vorbis'])374        DEPS.add_dll(r'(libogg-0|ogg)\.dll$', 'ogg', ['libogg-[1-9].*'])375        for d in get_definitions():376            DEPS.add_win(d.name, d.value)377        DEPS.configure()378    else:379        DEPS.add('SDL', 'SDL2', ['SDL2-[1-9].*'], r'(lib){0,1}SDL2\.dll$', required=1)380        DEPS.add('PORTMIDI', 'portmidi', ['portmidi'], r'portmidi\.dll$', find_header='portmidi\.h')381        #DEPS.add('PORTTIME', 'porttime', ['porttime'], r'porttime\.dll$')382        DEPS.add_dummy('PORTTIME')383        DEPS.add('MIXER', 'SDL2_mixer', ['SDL2_mixer-[1-9].*'], r'(lib){0,1}SDL2_mixer\.dll$',384                 ['SDL', 'vorbisfile'])385        DEPS.add('PNG', 'png', ['SDL2_image-[2-9].*', 'libpng-[1-9].*'], r'(png|libpng)[-0-9]*\.dll$', ['z'],386                 find_header='png\.h', find_lib='(lib)?png1[-0-9]*\.lib')387        DEPS.add('JPEG', 'jpeg', ['SDL2_image-[2-9].*', 'jpeg-9*'], r'(lib){0,1}jpeg-9\.dll$',388                 find_header='jpeglib\.h', find_lib='(lib)?jpeg-9\.lib')389        DEPS.add('IMAGE', 'SDL2_image', ['SDL2_image-[1-9].*'], r'(lib){0,1}SDL2_image\.dll$',390                 ['SDL', 'jpeg', 'png', 'tiff'], 0)391        DEPS.add('FONT', 'SDL2_ttf', ['SDL2_ttf-[2-9].*'], r'(lib){0,1}SDL2_ttf\.dll$', ['SDL', 'z', 'freetype'])392        DEPS.add('FREETYPE', 'freetype', ['freetype-[1-9].*'], r'(lib){0,1}freetype[-0-9]*\.dll$',393                 find_header='ft2build\.h', find_lib='(lib)?freetype[-0-9]*\.lib')394        DEPS.configure()395        _add_sdl2_dll_deps(DEPS)396        for d in get_definitions():397            DEPS.add_win(d.name, d.value)398        DEPS.configure()399    return list(DEPS)400def setup_prebuilt_sdl2(prebuilt_dir):401    Dependency.huntpaths[:] = [prebuilt_dir]402    Dependency.lib_hunt.extend([403        '',404        'lib',405        os.path.join('lib', get_machine_type()),406    ])407    Dependency.inc_hunt.append('')408    DEPS = DependencyGroup()409    DEPS.add('SDL', 'SDL2', ['SDL2-[1-9].*'], r'(lib){0,1}SDL2\.dll$', required=1)410    fontDep = DEPS.add('FONT', 'SDL2_ttf', ['SDL2_ttf-[2-9].*'], r'(lib){0,1}SDL2_ttf\.dll$', ['SDL', 'z', 'freetype'])411    imageDep = DEPS.add('IMAGE', 'SDL2_image', ['SDL2_image-[1-9].*'], r'(lib){0,1}SDL2_image\.dll$',412                        ['SDL', 'jpeg', 'png', 'tiff'], 0)413    mixerDep = DEPS.add('MIXER', 'SDL2_mixer', ['SDL2_mixer-[1-9].*'], r'(lib){0,1}SDL2_mixer\.dll$',414                        ['SDL', 'vorbisfile'])415    DEPS.add('PORTMIDI', 'portmidi', ['portmidi'], r'portmidi\.dll$', find_header='portmidi\.h')416    #DEPS.add('PORTTIME', 'porttime', ['porttime'], r'porttime\.dll$')417    DEPS.add_dummy('PORTTIME')418    DEPS.configure()419    # force use of the correct freetype DLL420    ftDep = DEPS.add('FREETYPE', 'freetype', ['SDL2_ttf-[2-9].*', 'freetype-[1-9].*'], r'(lib)?freetype[-0-9]*\.dll$',421                     find_header='ft2build\.h', find_lib='libfreetype[-0-9]*\.lib')422    ftDep.path = fontDep.path423    ftDep.inc_dir = [424        os.path.join(prebuilt_dir, 'include').replace('\\', '/')425    ]426    ftDep.inc_dir.append('%s/freetype2' % ftDep.inc_dir[0])427    ftDep.found = True428    png = DEPS.add('PNG', 'png', ['SDL2_image-[2-9].*', 'libpng-[1-9].*'], r'(png|libpng)[-0-9]*\.dll$', ['z'],429                   find_header='png\.h', find_lib='(lib)?png1[-0-9]*\.lib')430    png.path = imageDep.path431    png.inc_dir = [os.path.join(prebuilt_dir, 'include').replace('\\', '/')]432    png.found = True433    jpeg = DEPS.add('JPEG', 'jpeg', ['SDL2_image-[2-9].*', 'jpeg-9*'], r'(lib){0,1}jpeg-9\.dll$',434                   find_header='jpeglib\.h', find_lib='(lib)?jpeg-9\.lib')435    jpeg.path = imageDep.path436    jpeg.inc_dir = [os.path.join(prebuilt_dir, 'include').replace('\\', '/')]437    jpeg.found = True438    dllPaths = {439        'png': imageDep.path,440        'jpeg': imageDep.path,441        'tiff': imageDep.path,442        'z': imageDep.path,443        'webp': imageDep.path,444        'vorbis': mixerDep.path,445        'vorbisfile': mixerDep.path,446        'ogg': mixerDep.path,447        'flac': mixerDep.path,448        'modplug': mixerDep.path,449        'mpg123': mixerDep.path,450        'opus': mixerDep.path,451        'opusfile': mixerDep.path,452        'freetype': fontDep.path,453    }454    _add_sdl2_dll_deps(DEPS)455    for dll in DEPS.dlls:456        if dllPaths.get(dll.lib_name):457            dll.path = dllPaths.get(dll.lib_name)458    for d in get_definitions():459        DEPS.add_win(d.name, d.value)460    DEPS.configure()461    return list(DEPS)462def setup_prebuilt_sdl1(prebuilt_dir):463    setup_ = open('Setup', 'w')464    is_pypy = '__pypy__' in sys.builtin_module_names465    import platform466    is_python3 = platform.python_version().startswith('3')467    try:468        try:469            setup_win_in = open(os.path.join(prebuilt_dir, 'Setup_Win.in'))470        except IOError:471            raise IOError("%s missing required Setup_Win.in" % prebuilt_dir)472        # Copy Setup.in to Setup, replacing the BeginConfig/EndConfig473        # block with prebuilt\Setup_Win.in .474        setup_in = open(os.path.join('buildconfig', 'Setup.SDL1.in'))475        try:476            do_copy = True477            for line in setup_in:478                if line.startswith('#--StartConfig'):479                    do_copy = False480                    setup_.write(setup_win_in.read())481                    try:482                        setup_win_common_in = open(os.path.join('buildconfig', 'Setup_Win_Common.in'))483                    except:484                        pass485                    else:486                        try:487                            setup_.write(setup_win_common_in.read())488                        finally:489                            setup_win_common_in.close()490                elif line.startswith('#--EndConfig'):491                    do_copy = True492                elif do_copy:493                    setup_.write(line)494        finally:495            setup_in.close()496    finally:497        setup_.close()498    print("Wrote to \"Setup\".")499def main(sdl2=False):500    machine_type = get_machine_type()501    prebuilt_dir = 'prebuilt-%s' % machine_type502    use_prebuilt = '-prebuilt' in sys.argv503    auto_download = 'PYGAME_DOWNLOAD_PREBUILT' in os.environ504    if auto_download:505        auto_download = os.environ['PYGAME_DOWNLOAD_PREBUILT'] == '1'506    try:507        from . import download_win_prebuilt508    except ImportError:509        import download_win_prebuilt510    download_kwargs = {511        'x86': False,512        'x64': False,513        'sdl2': sdl2,514    }515    download_kwargs[machine_type] = True516    if not auto_download:517        if (not download_win_prebuilt.cached(**download_kwargs) or\518            not os.path.isdir(prebuilt_dir))\519            and download_win_prebuilt.ask(**download_kwargs):520            use_prebuilt = True521    else:522        download_win_prebuilt.update(**download_kwargs)523    if os.path.isdir(prebuilt_dir):524        if not use_prebuilt:525            if 'PYGAME_USE_PREBUILT' in os.environ:526                use_prebuilt = os.environ['PYGAME_USE_PREBUILT'] == '1'527            else:528                reply = raw_input('\nUse the SDL libraries in "%s"? [Y/n]' % prebuilt_dir)529                use_prebuilt = (not reply) or reply[0].lower() != 'n'530        if use_prebuilt:531            if sdl2:532                return setup_prebuilt_sdl2(prebuilt_dir)533            setup_prebuilt_sdl1(prebuilt_dir)534            raise SystemExit()535    else:536        print ("Note: cannot find directory \"%s\"; do not use prebuilts." % prebuilt_dir)537    return setup(sdl2)538if __name__ == '__main__':539    print ("""This is the configuration subscript for Windows.540Please run "config.py" for full configuration.""")541    import sys542    if "--download" in sys.argv:543        try:544            from . import download_win_prebuilt545        except ImportError:546            import download_win_prebuilt...

SConstruct

Source:SConstruct

...12##############################################################################13# Defaults.14version = '1.0.0'15pkgconfig.defaults()16pkgconfig.find_header('endian.h', 'HAVE_ENDIAN_H')17pkgconfig.find_header('machine/endian.h', 'HAVE_MACHINE_ENDIAN_H')18pkgconfig.find_header('sys/endian.h', 'HAVE_SYS_ENDIAN_H')19if pkgconfig.get_uname() == 'Linux':20	gnu_dl = pkgconfig.find_libwithheader('dl', 'dlfcn.h', 'HAVE_DLFCN_H')21else:22	gnu_dl = pkgconfig.find_header('dlfcn.h', 'HAVE_DLFCN_H')23# Just so we recognize it exists.24pkgconfig.find_header('GL/freeglut.h', 'USE_FREEGLUT')25# pthreads is neccessary.26pkgconfig.find_pthread()27if not gnu_dl or pkgconfig.get_uname() == 'Darwin':28	pkgconfig.find_sdl('1.2.4', '', True)29	pkgconfig.find_opengl('', True)30	pkgconfig.find_glut()31else:32	pkgconfig.find_header('SDL.h', 'HAVE_SDL_H')33	pkgconfig.find_header('SDL/SDL.h', 'HAVE_SDL_SDL_H')34	pkgconfig.add_cflag('-DDNLOAD_LIBM')35	pkgconfig.add_cflag('-DDNLOAD_LIBGL')36	pkgconfig.add_cflag('-DDNLOAD_LIBGLU')37	pkgconfig.add_cflag('-DDNLOAD_LIBGLUT')38	pkgconfig.add_cflag('-DDNLOAD_LIBSDL')39pkgconfig.add_cflag('-pedantic')40env = pkgconfig.get_env()...

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