def check_python_version(conf, minver=None): assert minver is None or isinstance(minver, tuple) pybin = conf.env["PYTHON"] if not pybin: conf.fatal("could not find the python executable") cmd = pybin + ["-c", "import sys\nfor x in sys.version_info: print(str(x))"] debug("python: Running python command %r" % cmd) lines = conf.cmd_and_log(cmd).split() assert len(lines) == 5, "found %i lines, expected 5: %r" % (len(lines), lines) pyver_tuple = (int(lines[0]), int(lines[1]), int(lines[2]), lines[3], int(lines[4])) result = (minver is None) or (pyver_tuple >= minver) if result: pyver = ".".join([str(x) for x in pyver_tuple[:2]]) conf.env["PYTHON_VERSION"] = pyver if "PYTHONDIR" in conf.environ: pydir = conf.environ["PYTHONDIR"] else: if Utils.is_win32: (python_LIBDEST, pydir) = conf.get_python_variables( [ "get_config_var('LIBDEST') or ''", "get_python_lib(standard_lib=0, prefix=%r) or ''" % conf.env["PREFIX"], ], ["from distutils.sysconfig import get_config_var, get_python_lib"], ) else: python_LIBDEST = None (pydir,) = conf.get_python_variables( ["get_python_lib(standard_lib=0, prefix=%r) or ''" % conf.env["PREFIX"]], ["from distutils.sysconfig import get_python_lib"], ) if python_LIBDEST is None: if conf.env["LIBDIR"]: python_LIBDEST = os.path.join(conf.env["LIBDIR"], "python" + pyver) else: python_LIBDEST = os.path.join(conf.env["PREFIX"], "lib", "python" + pyver) if "PYTHONARCHDIR" in conf.environ: pyarchdir = conf.environ["PYTHONARCHDIR"] else: (pyarchdir,) = conf.get_python_variables( ["get_python_lib(plat_specific=1, standard_lib=0, prefix=%r) or ''" % conf.env["PREFIX"]], ["from distutils.sysconfig import get_python_lib"], ) if not pyarchdir: pyarchdir = pydir if hasattr(conf, "define"): conf.define("PYTHONDIR", pydir) conf.define("PYTHONARCHDIR", pyarchdir) conf.env["PYTHONDIR"] = pydir conf.env["PYTHONARCHDIR"] = pyarchdir pyver_full = ".".join(map(str, pyver_tuple[:3])) if minver is None: conf.msg("Checking for python version", pyver_full) else: minver_str = ".".join(map(str, minver)) conf.msg("Checking for python version", pyver_tuple, ">= %s" % (minver_str,) and "GREEN" or "YELLOW") if not result: conf.fatal("The python version is too old, expecting %r" % (minver,))
def check_python_version(conf,minver=None): assert minver is None or isinstance(minver,tuple) pybin=conf.env.PYTHON if not pybin: conf.fatal('could not find the python executable') cmd=pybin+['-c','import sys\nfor x in sys.version_info: print(str(x))'] Logs.debug('python: Running python command %r',cmd) lines=conf.cmd_and_log(cmd).split() assert len(lines)==5,"found %r lines, expected 5: %r"%(len(lines),lines) pyver_tuple=(int(lines[0]),int(lines[1]),int(lines[2]),lines[3],int(lines[4])) result=(minver is None)or(pyver_tuple>=minver) if result: pyver='.'.join([str(x)for x in pyver_tuple[:2]]) conf.env.PYTHON_VERSION=pyver if'PYTHONDIR'in conf.env: pydir=conf.env.PYTHONDIR elif'PYTHONDIR'in conf.environ: pydir=conf.environ['PYTHONDIR'] else: if Utils.is_win32: (python_LIBDEST,pydir)=conf.get_python_variables(["get_config_var('LIBDEST') or ''","get_python_lib(standard_lib=0) or ''"]) else: python_LIBDEST=None (pydir,)=conf.get_python_variables(["get_python_lib(standard_lib=0, prefix=%r) or ''"%conf.env.PREFIX]) if python_LIBDEST is None: if conf.env.LIBDIR: python_LIBDEST=os.path.join(conf.env.LIBDIR,'python'+pyver) else: python_LIBDEST=os.path.join(conf.env.PREFIX,'lib','python'+pyver) if'PYTHONARCHDIR'in conf.env: pyarchdir=conf.env.PYTHONARCHDIR elif'PYTHONARCHDIR'in conf.environ: pyarchdir=conf.environ['PYTHONARCHDIR'] else: (pyarchdir,)=conf.get_python_variables(["get_python_lib(plat_specific=1, standard_lib=0, prefix=%r) or ''"%conf.env.PREFIX]) if not pyarchdir: pyarchdir=pydir if hasattr(conf,'define'): conf.define('PYTHONDIR',pydir) conf.define('PYTHONARCHDIR',pyarchdir) conf.env.PYTHONDIR=pydir conf.env.PYTHONARCHDIR=pyarchdir pyver_full='.'.join(map(str,pyver_tuple[:3])) if minver is None: conf.msg('Checking for python version',pyver_full) else: minver_str='.'.join(map(str,minver)) conf.msg('Checking for python version >= %s'%(minver_str,),pyver_full,color=result and'GREEN'or'YELLOW') if not result: conf.fatal('The python version is too old, expecting %r'%(minver,))
def check_python_version(conf,minver=None): assert minver is None or isinstance(minver,tuple) pybin=conf.env['PYTHON'] if not pybin: conf.fatal('could not find the python executable') cmd=pybin+['-c','import sys\nfor x in sys.version_info: print(str(x))'] Logs.debug('python: Running python command %r'%cmd) lines=conf.cmd_and_log(cmd).split() assert len(lines)==5,"found %i lines, expected 5: %r"%(len(lines),lines) pyver_tuple=(int(lines[0]),int(lines[1]),int(lines[2]),lines[3],int(lines[4])) result=(minver is None)or(pyver_tuple>=minver) if result: pyver='.'.join([str(x)for x in pyver_tuple[:2]]) conf.env['PYTHON_VERSION']=pyver if'PYTHONDIR'in conf.env: pydir=conf.env['PYTHONDIR'] elif'PYTHONDIR'in conf.environ: pydir=conf.environ['PYTHONDIR'] else: if Utils.is_win32: (python_LIBDEST,pydir)=conf.get_python_variables(["get_config_var('LIBDEST') or ''","get_python_lib(standard_lib=0) or ''"]) else: python_LIBDEST=None (pydir,)=conf.get_python_variables(["get_python_lib(standard_lib=0) or ''"]) if python_LIBDEST is None: if conf.env['LIBDIR']: python_LIBDEST=os.path.join(conf.env['LIBDIR'],"python"+pyver) else: python_LIBDEST=os.path.join(conf.env['PREFIX'],"lib","python"+pyver) if'PYTHONARCHDIR'in conf.env: pyarchdir=conf.env['PYTHONARCHDIR'] elif'PYTHONARCHDIR'in conf.environ: pyarchdir=conf.environ['PYTHONARCHDIR'] else: (pyarchdir,)=conf.get_python_variables(["get_python_lib(plat_specific=1, standard_lib=0) or ''"]) if not pyarchdir: pyarchdir=pydir if hasattr(conf,'define'): conf.define('PYTHONDIR',pydir) conf.define('PYTHONARCHDIR',pyarchdir) conf.env['PYTHONDIR']=pydir conf.env['PYTHONARCHDIR']=pyarchdir pyver_full='.'.join(map(str,pyver_tuple[:3])) if minver is None: conf.msg('Checking for python version',pyver_full) else: minver_str='.'.join(map(str,minver)) conf.msg('Checking for python version',pyver_tuple,">= %s"%(minver_str,)and'GREEN'or'YELLOW') if not result: conf.fatal('The python version is too old, expecting %r'%(minver,))
def check_numpy_version(conf, minver, maxver=None): conf.start_msg("Checking numpy version") minver = tuple(minver) if maxver: maxver = tuple(maxver) (np_ver_str,) = conf.get_python_variables( ['numpy.version.short_version'], ['import numpy']) np_ver = tuple([int(x) for x in np_ver_str.split('.')]) if np_ver < minver or (maxver and np_ver > maxver): conf.end_msg(False) conf.fatal("numpy version %s is not in the " "range of supported versions: minimum=%s, maximum=%s" % (np_ver_str, minver, maxver)) conf.end_msg(str(np_ver))
def check_python_version(conf,minver=None): assert minver is None or isinstance(minver,tuple) python=conf.env['PYTHON'] if not python: conf.fatal('could not find the python executable') cmd=[python,'-c','import sys\nfor x in sys.version_info: print(str(x))'] debug('python: Running python command %r'%cmd) lines=conf.cmd_and_log(cmd).split() assert len(lines)==5,"found %i lines, expected 5: %r"%(len(lines),lines) pyver_tuple=(int(lines[0]),int(lines[1]),int(lines[2]),lines[3],int(lines[4])) result=(minver is None)or(pyver_tuple>=minver) if result: pyver='.'.join([str(x)for x in pyver_tuple[:2]]) conf.env['PYTHON_VERSION']=pyver if'PYTHONDIR'in conf.environ: pydir=conf.environ['PYTHONDIR'] else: if sys.platform=='win32': (python_LIBDEST,pydir)=conf.get_python_variables(python,["get_config_var('LIBDEST')","get_python_lib(standard_lib=0, prefix=%r)"%conf.env['PREFIX']],['from distutils.sysconfig import get_config_var, get_python_lib']) else: python_LIBDEST=None (pydir,)=conf.get_python_variables(python,["get_python_lib(standard_lib=0, prefix=%r)"%conf.env['PREFIX']],['from distutils.sysconfig import get_config_var, get_python_lib']) if python_LIBDEST is None: if conf.env['LIBDIR']: python_LIBDEST=os.path.join(conf.env['LIBDIR'],"python"+pyver) else: python_LIBDEST=os.path.join(conf.env['PREFIX'],"lib","python"+pyver) if hasattr(conf,'define'): conf.define('PYTHONDIR',pydir) conf.env['PYTHONDIR']=pydir pyver_full='.'.join(map(str,pyver_tuple[:3])) if minver is None: conf.msg('Checking for python version',pyver_full) else: minver_str='.'.join(map(str,minver)) conf.msg('Checking for python version',pyver_tuple,">= %s"%(minver_str,)and'GREEN'or'YELLOW') if not result: conf.fatal('The python version is too old, expecting %r'%(minver,))
def check_python_headers(conf): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ # FIXME rewrite if not conf.env['CC_NAME'] and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env = conf.env pybin = env.PYTHON if not pybin: conf.fatal('could not find the python executable') v = 'INCLUDEPY SO LDFLAGS MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split() try: lst = conf.get_python_variables( ["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, '\n'.join(vals))) dct = dict(list(zip(v, lst))) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] # not a mistake if Options.options.use_distutils_flags: all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEXT') env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']]
def check_python_headers(conf): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ # FIXME rewrite if not conf.env['CC_NAME'] and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env = conf.env pybin = env.PYTHON if not pybin: conf.fatal('could not find the python executable') v = 'INCLUDEPY SO LDFLAGS MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split() try: lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] # not a mistake if Options.options.use_distutils_flags: all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEXT') env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']]
def check_python_headers(conf): env=conf.env if not env['CC_NAME']and not env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not env['PYTHON_VERSION']: conf.check_python_version() pybin=conf.env.PYTHON if not pybin: conf.fatal('Could not find the python executable') v='prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split() try: lst=conf.get_python_variables(["get_config_var('%s') or ''"%x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals=['%s = %r'%(x,y)for(x,y)in zip(v,lst)] conf.to_log("Configuration returned from %r:\n%r\n"%(pybin,'\n'.join(vals))) dct=dict(zip(v,lst)) x='MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x]=conf.environ[x]=dct[x] if not env.pyext_PATTERN: if dct['SO']: env.pyext_PATTERN='%s'+dct['SO'] else: env.pyext_PATTERN=(conf.env.cshlib_PATTERN or conf.env.cxxshlib_PATTERN).lstrip('lib') num='.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program([''.join(pybin)+'-config','python%s-config'%num,'python-config-%s'%num,'python%sm-config'%num],var='PYTHON_CONFIG',msg="python-config") all_flags=[['--cflags','--libs','--ldflags']] if sys.hexversion<0x2060000: all_flags=[[x]for x in all_flags[0]] xx=conf.env.CXX_NAME and'cxx'or'c' for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyembed %r flags'%' '.join(flags),path=conf.env.PYTHON_CONFIG,package='',uselib_store='PYEMBED',args=flags) conf.check(header_name='Python.h',define_name='HAVE_PYEMBED',msg='Getting pyembed flags from python-config',fragment=FRAG,errmsg='Could not build a python embedded interpreter',features='%s %sprogram pyembed'%(xx,xx)) for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyext %r flags'%' '.join(flags),path=conf.env.PYTHON_CONFIG,package='',uselib_store='PYEXT',args=flags) conf.check(header_name='Python.h',define_name='HAVE_PYEXT',msg='Getting pyext flags from python-config',features='%s %sshlib pyext'%(xx,xx),fragment=FRAG,errmsg='Could not build python extensions') conf.define('HAVE_PYTHON_H',1)
def check_python_headers(conf): env=conf.env if not env['CC_NAME']and not env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not env['PYTHON_VERSION']: conf.check_python_version() pybin=env.PYTHON if not pybin: conf.fatal('Could not find the python executable') v='prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split() try: lst=conf.get_python_variables(["get_config_var('%s') or ''"%x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals=['%s = %r'%(x,y)for(x,y)in zip(v,lst)] conf.to_log("Configuration returned from %r:\n%r\n"%(pybin,'\n'.join(vals))) dct=dict(zip(v,lst)) x='MACOSX_DEPLOYMENT_TARGET' if dct[x]: env[x]=conf.environ[x]=dct[x] env['pyext_PATTERN']='%s'+dct['SO'] num='.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program([''.join(pybin)+'-config','python%s-config'%num,'python-config-%s'%num,'python%sm-config'%num],var='PYTHON_CONFIG',msg="python-config",mandatory=False) if env.PYTHON_CONFIG: all_flags=[['--cflags','--libs','--ldflags']] if sys.hexversion<0x2060000: all_flags=[[k]for k in all_flags[0]] xx=env.CXX_NAME and'cxx'or'c' for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyembed %r flags'%' '.join(flags),path=env.PYTHON_CONFIG,package='',uselib_store='PYEMBED',args=flags) conf.check(header_name='Python.h',define_name='HAVE_PYEMBED',msg='Getting pyembed flags from python-config',fragment=FRAG,errmsg='Could not build a python embedded interpreter',features='%s %sprogram pyembed'%(xx,xx)) for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyext %r flags'%' '.join(flags),path=env.PYTHON_CONFIG,package='',uselib_store='PYEXT',args=flags) conf.check(header_name='Python.h',define_name='HAVE_PYEXT',msg='Getting pyext flags from python-config',features='%s %sshlib pyext'%(xx,xx),fragment=FRAG,errmsg='Could not build python extensions') conf.define('HAVE_PYTHON_H',1) return all_flags=dct['LDFLAGS']+' '+dct['CFLAGS'] conf.parse_flags(all_flags,'PYEMBED') all_flags=dct['LDFLAGS']+' '+dct['LDSHARED']+' '+dct['CFLAGS'] conf.parse_flags(all_flags,'PYEXT') result=None if not dct["LDVERSION"]: dct["LDVERSION"]=env['PYTHON_VERSION'] for name in('python'+dct['LDVERSION'],'python'+env['PYTHON_VERSION']+'m','python'+env['PYTHON_VERSION'].replace('.','')): if not result and env['LIBPATH_PYEMBED']: path=env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n"%path) result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in LIBPATH_PYEMBED'%name) if not result and dct['LIBDIR']: path=[dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n"%path) result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in LIBDIR'%name) if not result and dct['LIBPL']: path=[dct['LIBPL']] conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in python_LIBPL'%name) if not result: path=[os.path.join(dct['prefix'],"libs")] conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in $prefix/libs'%name) if result: break if result: env['LIBPATH_PYEMBED']=path env.append_value('LIB_PYEMBED',[name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") if Utils.is_win32 or dct['Py_ENABLE_SHARED']: env['LIBPATH_PYEXT']=env['LIBPATH_PYEMBED'] env['LIB_PYEXT']=env['LIB_PYEMBED'] conf.to_log("Include path for Python extensions (found via distutils module): %r\n"%(dct['INCLUDEPY'],)) env['INCLUDES_PYEXT']=[dct['INCLUDEPY']] env['INCLUDES_PYEMBED']=[dct['INCLUDEPY']] if env['CC_NAME']=='gcc': env.append_value('CFLAGS_PYEMBED',['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT',['-fno-strict-aliasing']) if env['CXX_NAME']=='gcc': env.append_value('CXXFLAGS_PYEMBED',['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT',['-fno-strict-aliasing']) if env.CC_NAME=="msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler=MSVCCompiler() dist_compiler.initialize() env.append_value('CFLAGS_PYEXT',dist_compiler.compile_options) env.append_value('CXXFLAGS_PYEXT',dist_compiler.compile_options) env.append_value('LINKFLAGS_PYEXT',dist_compiler.ldflags_shared) conf.check(header_name='Python.h',define_name='HAVE_PYTHON_H',uselib='PYEMBED',fragment=FRAG,errmsg='Distutils not installed? Broken python installation? Get python-config now!')
def check_python_headers(conf): if not conf.env['CC_NAME']and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env=conf.env pybin=conf.env.PYTHON if not pybin: conf.fatal('could not find the python executable') v='prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split() try: lst=conf.get_python_variables(["get_config_var('%s')"%x for x in v],['from distutils.sysconfig import get_config_var']) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals=['%s = %r'%(x,y)for(x,y)in zip(v,lst)] conf.to_log("Configuration returned from %r:\n%r\n"%(pybin,'\n'.join(vals))) dct=dict(zip(v,lst)) x='MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x]=conf.environ[x]=dct[x] env['pyext_PATTERN']='%s'+dct['SO'] all_flags=dct['LDFLAGS']+' '+dct['LDSHARED']+' '+dct['CFLAGS'] conf.parse_flags(all_flags,'PYEMBED') conf.parse_flags(all_flags,'PYEXT') result=None name='python'+env['PYTHON_VERSION'] path=env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n"%path) result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False) if not result: conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n"%path) path=[dct['LIBDIR']or''] result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False) if not result: conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") path=[dct['LIBPL']or''] result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False) if not result: conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") path=[os.path.join(dct['prefix'],"libs")] name='python'+env['PYTHON_VERSION'].replace('.','') result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False) if result: env['LIBPATH_PYEMBED']=path env.append_value('LIB_PYEMBED',[name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") if(sys.platform=='win32'or sys.platform.startswith('os2')or sys.platform=='darwin'or dct['Py_ENABLE_SHARED']): env['LIBPATH_PYEXT']=env['LIBPATH_PYEMBED'] env['LIB_PYEXT']=env['LIB_PYEMBED'] num='.'.join(env['PYTHON_VERSION'].split('.')[:2]) try: conf.find_program('python%s-config'%num,var='PYTHON_CONFIG') except conf.errors.ConfigurationError: conf.find_program('python-config-%s'%num,var='PYTHON_CONFIG',mandatory=False) includes=[] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log(conf.env.PYTHON_CONFIG + ' --includes').strip().split(): if(incstr.startswith('-I')or incstr.startswith('/I')): incstr=incstr[2:] if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions ""(found via python-config --includes): %r\n"%(includes,)) env['INCLUDES_PYEXT']=includes env['INCLUDES_PYEMBED']=includes else: conf.to_log("Include path for Python extensions ""(found via distutils module): %r\n"%(dct['INCLUDEPY'],)) env['INCLUDES_PYEXT']=[dct['INCLUDEPY']] env['INCLUDES_PYEMBED']=[dct['INCLUDEPY']] if env['CC_NAME']=='gcc': env.append_value('CFLAGS_PYEMBED',['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT',['-fno-strict-aliasing']) if env['CXX_NAME']=='gcc': env.append_value('CXXFLAGS_PYEMBED',['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT',['-fno-strict-aliasing'])
def check_python_headers(conf): if not conf.env['CC_NAME'] and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env = conf.env pybin = conf.env.PYTHON if not pybin: conf.fatal('could not find the python executable') v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split( ) try: lst = conf.get_python_variables( ["get_config_var('%s')" % x for x in v], ['from distutils.sysconfig import get_config_var']) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') conf.parse_flags(all_flags, 'PYEXT') result = None name = 'python' + env['PYTHON_VERSION'] path = env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if not result: conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) path = [dct['LIBDIR'] or ''] result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if not result: conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) path = [dct['LIBPL'] or ''] result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if not result: conf.to_log( "\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n" ) path = [os.path.join(dct['prefix'], "libs")] name = 'python' + env['PYTHON_VERSION'].replace('.', '') result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if result: env['LIBPATH_PYEMBED'] = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") if (sys.platform == 'win32' or sys.platform.startswith('os2') or sys.platform == 'darwin' or dct['Py_ENABLE_SHARED']): env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED'] env['LIB_PYEXT'] = env['LIB_PYEMBED'] num = '.'.join(env['PYTHON_VERSION'].split('.')[:2]) try: conf.find_program('python%s-config' % num, var='PYTHON_CONFIG') except conf.errors.ConfigurationError: conf.find_program('python-config-%s' % num, var='PYTHON_CONFIG', mandatory=False) includes = [] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log( conf.env.PYTHON + [conf.env.PYTHON_CONFIG, '--includes']).strip().split(): if (incstr.startswith('-I') or incstr.startswith('/I')): incstr = incstr[2:] if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions " "(found via python-config --includes): %r\n" % (includes, )) env['INCLUDES_PYEXT'] = includes env['INCLUDES_PYEMBED'] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (dct['INCLUDEPY'], )) env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']] env['INCLUDES_PYEMBED'] = [dct['INCLUDEPY']] if env['CC_NAME'] == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env['CXX_NAME'] == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg='Could not find the python development headers')
def check_python_headers(conf, features='pyembed pyext'): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ features = Utils.to_list(features) assert ('pyembed' in features) or ('pyext' in features), "check_python_headers features must include 'pyembed' and/or 'pyext'" env = conf.env if not env.CC_NAME and not env.CXX_NAME: conf.fatal('load a compiler first (gcc, g++, ..)') # bypass all the code below for cross-compilation if conf.python_cross_compile(features): return if not env.PYTHON_VERSION: conf.check_python_version() pybin = env.PYTHON if not pybin: conf.fatal('Could not find the python executable') # so we actually do all this for compatibility reasons and for obtaining pyext_PATTERN below v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split() try: lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%s\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: env[x] = conf.environ[x] = dct[x] env.pyext_PATTERN = '%s' + dct['SO'] # not a mistake # Try to get pythonX.Y-config num = '.'.join(env.PYTHON_VERSION.split('.')[:2]) conf.find_program([''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num], var='PYTHON_CONFIG', msg="python-config", mandatory=False) if env.PYTHON_CONFIG: # python2.6-config requires 3 runs all_flags = [['--cflags', '--libs', '--ldflags']] if sys.hexversion < 0x2070000: all_flags = [[k] for k in all_flags[0]] xx = env.CXX_NAME and 'cxx' or 'c' if 'pyembed' in features: for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyembed %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=flags) try: conf.test_pyembed(xx) except conf.errors.ConfigurationError: # python bug 7352 if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: env.append_unique('LIBPATH_PYEMBED', [dct['LIBDIR']]) conf.test_pyembed(xx) else: raise if 'pyext' in features: for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyext %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=flags) try: conf.test_pyext(xx) except conf.errors.ConfigurationError: # python bug 7352 if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: env.append_unique('LIBPATH_PYEXT', [dct['LIBDIR']]) conf.test_pyext(xx) else: raise conf.define('HAVE_PYTHON_H', 1) return # No python-config, do something else on windows systems all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEXT') result = None if not dct["LDVERSION"]: dct["LDVERSION"] = env.PYTHON_VERSION # further simplification will be complicated for name in ('python' + dct['LDVERSION'], 'python' + env.PYTHON_VERSION + 'm', 'python' + env.PYTHON_VERSION.replace('.', '')): # LIBPATH_PYEMBED is already set; see if it works. if not result and env.LIBPATH_PYEMBED: path = env.LIBPATH_PYEMBED conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name) if not result and dct['LIBDIR']: path = [dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name) if not result and dct['LIBPL']: path = [dct['LIBPL']] conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name) if not result: path = [os.path.join(dct['prefix'], "libs")] conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name) if result: break # do not forget to set LIBPATH_PYEMBED if result: env.LIBPATH_PYEMBED = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if Utils.is_win32 or dct['Py_ENABLE_SHARED']: env.LIBPATH_PYEXT = env.LIBPATH_PYEMBED env.LIB_PYEXT = env.LIB_PYEMBED conf.to_log("Include path for Python extensions (found via distutils module): %r\n" % (dct['INCLUDEPY'],)) env.INCLUDES_PYEXT = [dct['INCLUDEPY']] env.INCLUDES_PYEMBED = [dct['INCLUDEPY']] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env.CC_NAME == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env.CXX_NAME == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared) # See if it compiles conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg='Distutils not installed? Broken python installation? Get python-config now!')
def check_python_headers(conf): """Check for headers and libraries necessary to extend or embed python. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added for uselib PYEXT: for compiling python extensions PYEMBED: for embedding a python interpreter""" if not conf.env['CC_NAME'] and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env = conf.env python = env['PYTHON'] if not python: conf.fatal('could not find the python executable') ## On Mac OSX we need to use mac bundles for python plugins if Options.platform == 'darwin': conf.check_tool('osx') try: # Get some python configuration variables using distutils v = 'prefix SO SYSLIBS LDFLAGS SHLIBS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET'.split() (python_prefix, python_SO, python_SYSLIBS, python_LDFLAGS, python_SHLIBS, python_LIBDIR, python_LIBPL, INCLUDEPY, Py_ENABLE_SHARED, python_MACOSX_DEPLOYMENT_TARGET) = \ conf.get_python_variables(python, ["get_config_var('%s')" % x for x in v], ['from distutils.sysconfig import get_config_var']) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") conf.to_log("""Configuration returned from %r: python_prefix = %r python_SO = %r python_SYSLIBS = %r python_LDFLAGS = %r python_SHLIBS = %r python_LIBDIR = %r python_LIBPL = %r INCLUDEPY = %r Py_ENABLE_SHARED = %r MACOSX_DEPLOYMENT_TARGET = %r """ % (python, python_prefix, python_SO, python_SYSLIBS, python_LDFLAGS, python_SHLIBS, python_LIBDIR, python_LIBPL, INCLUDEPY, Py_ENABLE_SHARED, python_MACOSX_DEPLOYMENT_TARGET)) if python_MACOSX_DEPLOYMENT_TARGET: conf.env['MACOSX_DEPLOYMENT_TARGET'] = python_MACOSX_DEPLOYMENT_TARGET conf.environ['MACOSX_DEPLOYMENT_TARGET'] = python_MACOSX_DEPLOYMENT_TARGET env['pyext_PATTERN'] = '%s'+python_SO # Check for python libraries for embedding if python_SYSLIBS is not None: for lib in python_SYSLIBS.split(): if lib.startswith('-l'): lib = lib[2:] # strip '-l' env.append_value('LIB_PYEMBED', [lib]) if python_SHLIBS is not None: for lib in python_SHLIBS.split(): if lib.startswith('-l'): lib = lib[2:] # strip '-l' env.append_value('LIB_PYEMBED', [lib]) if Options.platform != 'darwin' and python_LDFLAGS: env.append_value('LINKFLAGS_PYEMBED', python_LDFLAGS.split()) result = False name = 'python' + env['PYTHON_VERSION'] if python_LIBDIR is not None: path = [python_LIBDIR] conf.to_log("\n\n# Trying LIBDIR: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path) if not result and python_LIBPL is not None: conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") path = [python_LIBPL] result = conf.check(lib=name, uselib='PYEMBED', libpath=path) if not result: conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") path = [os.path.join(python_prefix, "libs")] name = 'python' + env['PYTHON_VERSION'].replace('.', '') result = conf.check(lib=name, uselib='PYEMBED', libpath=path) if result: env['LIBPATH_PYEMBED'] = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if (sys.platform == 'win32' or sys.platform.startswith('os2') or sys.platform == 'darwin' or Py_ENABLE_SHARED): env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED'] env['LIB_PYEXT'] = env['LIB_PYEMBED'] # We check that pythonX.Y-config exists, and if it exists we # use it to get only the includes, else fall back to distutils. python_config = conf.find_program( 'python%s-config' % ('.'.join(env['PYTHON_VERSION'].split('.')[:2])), var='PYTHON_CONFIG') if not python_config: python_config = conf.find_program( 'python-config-%s' % ('.'.join(env['PYTHON_VERSION'].split('.')[:2])), var='PYTHON_CONFIG') includes = [] if python_config: for incstr in conf.cmd_and_log("%s %s --includes" % (python, python_config)).strip().split(): # strip the -I or /I if (incstr.startswith('-I') or incstr.startswith('/I')): incstr = incstr[2:] # append include path, unless already given if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions " "(found via python-config --includes): %r\n" % (includes,)) env['INCLUDES_PYEXT'] = includes env['INCLUDES_PYEMBED'] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (INCLUDEPY,)) env['INCLUDES_PYEXT'] = [INCLUDEPY] env['INCLUDES_PYEMBED'] = [INCLUDEPY] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env['CC_NAME'] == 'gcc': env.append_value('CCFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CCFLAGS_PYEXT', ['-fno-strict-aliasing']) if env['CXX_NAME'] == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) # See if it compiles conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg='Could not find the python development headers')
def check_python_headers(conf): if not conf.env['CC_NAME']and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env=conf.env pybin=conf.env.PYTHON if not pybin: conf.fatal('could not find the python executable') v='prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split() try: lst=conf.get_python_variables(["get_config_var('%s') or ''"%x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals=['%s = %r'%(x,y)for(x,y)in zip(v,lst)] conf.to_log("Configuration returned from %r:\n%r\n"%(pybin,'\n'.join(vals))) dct=dict(zip(v,lst)) x='MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x]=conf.environ[x]=dct[x] env['pyext_PATTERN']='%s'+dct['SO'] all_flags=dct['LDFLAGS']+' '+dct['CFLAGS'] conf.parse_flags(all_flags,'PYEMBED') all_flags=dct['LDFLAGS']+' '+dct['LDSHARED']+' '+dct['CFLAGS'] conf.parse_flags(all_flags,'PYEXT') result=None for name in('python'+env['PYTHON_VERSION'],'python'+env['PYTHON_VERSION'].replace('.','')): if not result and env['LIBPATH_PYEMBED']: path=env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n"%path) result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in LIBPATH_PYEMBED'%name) if not result and dct['LIBDIR']: path=[dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n"%path) result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in LIBDIR'%name) if not result and dct['LIBPL']: path=[dct['LIBPL']] conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in python_LIBPL'%name) if not result: path=[os.path.join(dct['prefix'],"libs")] conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") result=conf.check(lib=name,uselib='PYEMBED',libpath=path,mandatory=False,msg='Checking for library %s in $prefix/libs'%name) if result: break if result: env['LIBPATH_PYEMBED']=path env.append_value('LIB_PYEMBED',[name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") if(Utils.is_win32 or sys.platform.startswith('os2')or dct['Py_ENABLE_SHARED']): env['LIBPATH_PYEXT']=env['LIBPATH_PYEMBED'] env['LIB_PYEXT']=env['LIB_PYEMBED'] num='.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program(['python%s-config'%num,'python-config-%s'%num,'python%sm-config'%num],var='PYTHON_CONFIG',mandatory=False) includes=[] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log([conf.env.PYTHON_CONFIG,'--includes']).strip().split(): if(incstr.startswith('-I')or incstr.startswith('/I')): incstr=incstr[2:] if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions (found via python-config --includes): %r\n"%(includes,)) env['INCLUDES_PYEXT']=includes env['INCLUDES_PYEMBED']=includes else: conf.to_log("Include path for Python extensions ""(found via distutils module): %r\n"%(dct['INCLUDEPY'],)) env['INCLUDES_PYEXT']=[dct['INCLUDEPY']] env['INCLUDES_PYEMBED']=[dct['INCLUDEPY']] if env['CC_NAME']=='gcc': env.append_value('CFLAGS_PYEMBED',['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT',['-fno-strict-aliasing']) if env['CXX_NAME']=='gcc': env.append_value('CXXFLAGS_PYEMBED',['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT',['-fno-strict-aliasing']) if env.CC_NAME=="msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler=MSVCCompiler() dist_compiler.initialize() env.append_value('CFLAGS_PYEXT',dist_compiler.compile_options) env.append_value('CXXFLAGS_PYEXT',dist_compiler.compile_options) env.append_value('LINKFLAGS_PYEXT',dist_compiler.ldflags_shared) try: conf.check(header_name='Python.h',define_name='HAVE_PYTHON_H',uselib='PYEMBED',fragment=FRAG,errmsg='Could not find the python development headers') except conf.errors.ConfigurationError: conf.check_cfg(path=conf.env.PYTHON_CONFIG,package='',uselib_store='PYEMBED',args=['--cflags','--libs']) conf.check(header_name='Python.h',define_name='HAVE_PYTHON_H',msg='Getting the python flags from python-config',uselib='PYEMBED',fragment=FRAG,errmsg='Could not find the python development headers elsewhere')
def check_python_headers(conf, features="pyembed pyext"): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ features = Utils.to_list(features) assert ("pyembed" in features) or ( "pyext" in features ), "check_python_headers features must include 'pyembed' and/or 'pyext'" env = conf.env if not env.CC_NAME and not env.CXX_NAME: conf.fatal("load a compiler first (gcc, g++, ..)") # bypass all the code below for cross-compilation if conf.python_cross_compile(features): return if not env.PYTHON_VERSION: conf.check_python_version() pybin = env.PYTHON if not pybin: conf.fatal("Could not find the python executable") # so we actually do all this for compatibility reasons and for obtaining pyext_PATTERN below v = "prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION".split() try: lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = [f"{x} = {y!r}" for (x, y) in zip(v, lst)] conf.to_log( "Configuration returned from {!r}:\n{}\n".format(pybin, "\n".join(vals)) ) dct = dict(zip(v, lst)) x = "MACOSX_DEPLOYMENT_TARGET" if dct[x]: env[x] = conf.environ[x] = dct[x] env.pyext_PATTERN = "%s" + dct["SO"] # not a mistake # Try to get pythonX.Y-config num = ".".join(env.PYTHON_VERSION.split(".")[:2]) conf.find_program( [ "".join(pybin) + "-config", "python%s-config" % num, "python-config-%s" % num, "python%sm-config" % num, ], var="PYTHON_CONFIG", msg="python-config", mandatory=False, ) if env.PYTHON_CONFIG: # python2.6-config requires 3 runs all_flags = [["--cflags", "--libs", "--ldflags"]] if sys.hexversion < 0x2070000: all_flags = [[k] for k in all_flags[0]] xx = env.CXX_NAME and "cxx" or "c" if "pyembed" in features: for flags in all_flags: conf.check_cfg( msg="Asking python-config for pyembed %r flags" % " ".join(flags), path=env.PYTHON_CONFIG, package="", uselib_store="PYEMBED", args=flags, ) try: conf.test_pyembed(xx) except conf.errors.ConfigurationError: # python bug 7352 if dct["Py_ENABLE_SHARED"] and dct["LIBDIR"]: env.append_unique("LIBPATH_PYEMBED", [dct["LIBDIR"]]) conf.test_pyembed(xx) else: raise if "pyext" in features: for flags in all_flags: conf.check_cfg( msg="Asking python-config for pyext %r flags" % " ".join(flags), path=env.PYTHON_CONFIG, package="", uselib_store="PYEXT", args=flags, ) try: conf.test_pyext(xx) except conf.errors.ConfigurationError: # python bug 7352 if dct["Py_ENABLE_SHARED"] and dct["LIBDIR"]: env.append_unique("LIBPATH_PYEXT", [dct["LIBDIR"]]) conf.test_pyext(xx) else: raise conf.define("HAVE_PYTHON_H", 1) return # No python-config, do something else on windows systems all_flags = dct["LDFLAGS"] + " " + dct["CFLAGS"] conf.parse_flags(all_flags, "PYEMBED") all_flags = dct["LDFLAGS"] + " " + dct["LDSHARED"] + " " + dct["CFLAGS"] conf.parse_flags(all_flags, "PYEXT") result = None if not dct["LDVERSION"]: dct["LDVERSION"] = env.PYTHON_VERSION # further simplification will be complicated for name in ( "python" + dct["LDVERSION"], "python" + env.PYTHON_VERSION + "m", "python" + env.PYTHON_VERSION.replace(".", ""), ): # LIBPATH_PYEMBED is already set; see if it works. if not result and env.LIBPATH_PYEMBED: path = env.LIBPATH_PYEMBED conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in LIBPATH_PYEMBED" % name, ) if not result and dct["LIBDIR"]: path = [dct["LIBDIR"]] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in LIBDIR" % name, ) if not result and dct["LIBPL"]: path = [dct["LIBPL"]] conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in python_LIBPL" % name, ) if not result: path = [os.path.join(dct["prefix"], "libs")] conf.to_log( "\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n" ) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in $prefix/libs" % name, ) if result: break # do not forget to set LIBPATH_PYEMBED if result: env.LIBPATH_PYEMBED = path env.append_value("LIB_PYEMBED", [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if Utils.is_win32 or dct["Py_ENABLE_SHARED"]: env.LIBPATH_PYEXT = env.LIBPATH_PYEMBED env.LIB_PYEXT = env.LIB_PYEMBED conf.to_log( "Include path for Python extensions (found via distutils module): {!r}\n".format( dct["INCLUDEPY"] ) ) env.INCLUDES_PYEXT = [dct["INCLUDEPY"]] env.INCLUDES_PYEMBED = [dct["INCLUDEPY"]] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env.CC_NAME == "gcc": env.append_value("CFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CFLAGS_PYEXT", ["-fno-strict-aliasing"]) if env.CXX_NAME == "gcc": env.append_value("CXXFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CXXFLAGS_PYEXT", ["-fno-strict-aliasing"]) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value("CFLAGS_PYEXT", dist_compiler.compile_options) env.append_value("CXXFLAGS_PYEXT", dist_compiler.compile_options) env.append_value("LINKFLAGS_PYEXT", dist_compiler.ldflags_shared) # See if it compiles conf.check( header_name="Python.h", define_name="HAVE_PYTHON_H", uselib="PYEMBED", fragment=FRAG, errmsg="Distutils not installed? Broken python installation? Get python-config now!", )
def check_python_headers(conf, features='pyembed pyext'): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ features = Utils.to_list(features) assert ('pyembed' in features) or ( 'pyext' in features ), "check_python_headers features must include 'pyembed' and/or 'pyext'" env = conf.env if not env.CC_NAME and not env.CXX_NAME: conf.fatal('load a compiler first (gcc, g++, ..)') # bypass all the code below for cross-compilation if conf.python_cross_compile(features): return if not env.PYTHON_VERSION: conf.check_python_version() pybin = env.PYTHON if not pybin: conf.fatal('Could not find the python executable') # so we actually do all this for compatibility reasons and for obtaining pyext_PATTERN below v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split( ) try: lst = conf.get_python_variables( ["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%s\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: env[x] = conf.environ[x] = dct[x] env.pyext_PATTERN = '%s' + dct['SO'] # not a mistake # Try to get pythonX.Y-config num = '.'.join(env.PYTHON_VERSION.split('.')[:2]) conf.find_program([ ''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num ], var='PYTHON_CONFIG', msg="python-config", mandatory=False) if env.PYTHON_CONFIG: # python2.6-config requires 3 runs all_flags = [['--cflags', '--libs', '--ldflags']] if sys.hexversion < 0x2070000: all_flags = [[k] for k in all_flags[0]] xx = env.CXX_NAME and 'cxx' or 'c' if 'pyembed' in features: for flags in all_flags: conf.check_cfg( msg='Asking python-config for pyembed %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=flags) try: conf.test_pyembed(xx) except conf.errors.ConfigurationError: # python bug 7352 if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: env.append_unique('LIBPATH_PYEMBED', [dct['LIBDIR']]) conf.test_pyembed(xx) else: raise if 'pyext' in features: for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyext %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=flags) try: conf.test_pyext(xx) except conf.errors.ConfigurationError: # python bug 7352 if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: env.append_unique('LIBPATH_PYEXT', [dct['LIBDIR']]) conf.test_pyext(xx) else: raise conf.define('HAVE_PYTHON_H', 1) return # No python-config, do something else on windows systems all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEXT') result = None if not dct["LDVERSION"]: dct["LDVERSION"] = env.PYTHON_VERSION # further simplification will be complicated for name in ('python' + dct['LDVERSION'], 'python' + env.PYTHON_VERSION + 'm', 'python' + env.PYTHON_VERSION.replace('.', '')): # LIBPATH_PYEMBED is already set; see if it works. if not result and env.LIBPATH_PYEMBED: path = env.LIBPATH_PYEMBED conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check( lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name) if not result and dct['LIBDIR']: path = [dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name) if not result and dct['LIBPL']: path = [dct['LIBPL']] conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name) if not result: path = [os.path.join(dct['prefix'], "libs")] conf.to_log( "\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name) if result: break # do not forget to set LIBPATH_PYEMBED if result: env.LIBPATH_PYEMBED = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if Utils.is_win32 or dct['Py_ENABLE_SHARED']: env.LIBPATH_PYEXT = env.LIBPATH_PYEMBED env.LIB_PYEXT = env.LIB_PYEMBED conf.to_log( "Include path for Python extensions (found via distutils module): %r\n" % (dct['INCLUDEPY'], )) env.INCLUDES_PYEXT = [dct['INCLUDEPY']] env.INCLUDES_PYEMBED = [dct['INCLUDEPY']] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env.CC_NAME == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env.CXX_NAME == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared) # See if it compiles conf.check( header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg= 'Distutils not installed? Broken python installation? Get python-config now!' )
def check_python_headers(conf): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ # FIXME rewrite env = conf.env if not env['CC_NAME'] and not env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not env['PYTHON_VERSION']: conf.check_python_version() pybin = conf.env.PYTHON if not pybin: conf.fatal('Could not find the python executable') v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split() try: lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] # not a mistake # Check for python libraries for embedding all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEXT') result = None #name = 'python' + env['PYTHON_VERSION'] if not dct["LDVERSION"]: dct["LDVERSION"] = env['PYTHON_VERSION'] # TODO simplify this for name in ('python' + dct['LDVERSION'], 'python' + env['PYTHON_VERSION'] + 'm', 'python' + env['PYTHON_VERSION'].replace('.', '')): # LIBPATH_PYEMBED is already set; see if it works. if not result and env['LIBPATH_PYEMBED']: path = env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name) if not result and dct['LIBDIR']: path = [dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name) if not result and dct['LIBPL']: path = [dct['LIBPL']] conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name) if not result: path = [os.path.join(dct['prefix'], "libs")] conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name) if result: break # do not forget to set LIBPATH_PYEMBED if result: env['LIBPATH_PYEMBED'] = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if (Utils.is_win32 or sys.platform.startswith('os2') or dct['Py_ENABLE_SHARED']): env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED'] env['LIB_PYEXT'] = env['LIB_PYEMBED'] # We check that pythonX.Y-config exists, and if it exists we # use it to get only the includes, else fall back to distutils. num = '.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program([''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num], var='PYTHON_CONFIG', mandatory=False) includes = [] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log([ conf.env.PYTHON_CONFIG, '--includes']).strip().split(): # strip the -I or /I if (incstr.startswith('-I') or incstr.startswith('/I')): incstr = incstr[2:] # append include path, unless already given if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions (found via python-config --includes): %r\n" % (includes,)) env['INCLUDES_PYEXT'] = includes env['INCLUDES_PYEMBED'] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (dct['INCLUDEPY'],)) env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']] env['INCLUDES_PYEMBED'] = [dct['INCLUDEPY']] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env['CC_NAME'] == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env['CXX_NAME'] == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared) # See if it compiles try: conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg=':-(') except conf.errors.ConfigurationError: # python3.2, oh yeah xx = conf.env.CXX_NAME and 'cxx' or 'c' flags = ['--cflags', '--libs', '--ldflags'] for f in flags: conf.check_cfg(msg='Asking python-config for pyembed %s flags' % f, path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=[f]) conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', msg='Getting pyembed flags from python-config', fragment=FRAG, errmsg='Could not build a python embedded interpreter', features='%s %sprogram pyembed' % (xx, xx)) for f in flags: conf.check_cfg(msg='Asking python-config for pyext %s flags' % f, path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=[f]) conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', msg='Getting pyext flags from python-config', features='%s %sshlib pyext' % (xx, xx), fragment=FRAG, errmsg='Could not build python extensions')
def check_python_headers(conf, features='pyembed pyext'): features = Utils.to_list(features) assert ('pyembed' in features) or ( 'pyext' in features ), "check_python_headers features must include 'pyembed' and/or 'pyext'" env = conf.env if not env['CC_NAME'] and not env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if conf.python_cross_compile(features): return if not env['PYTHON_VERSION']: conf.check_python_version() pybin = env.PYTHON if not pybin: conf.fatal('Could not find the python executable') v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split( ) try: lst = conf.get_python_variables( ["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%s\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] num = '.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program([ ''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num ], var='PYTHON_CONFIG', msg="python-config", mandatory=False) if env.PYTHON_CONFIG: all_flags = [['--cflags', '--libs', '--ldflags']] if sys.hexversion < 0x2070000: all_flags = [[k] for k in all_flags[0]] xx = env.CXX_NAME and 'cxx' or 'c' if 'pyembed' in features: for flags in all_flags: conf.check_cfg( msg='Asking python-config for pyembed %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=flags) try: conf.test_pyembed(xx) except conf.errors.ConfigurationError: if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: env.append_unique('LIBPATH_PYEMBED', [dct['LIBDIR']]) conf.test_pyembed(xx) else: raise if 'pyext' in features: for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyext %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=flags) try: conf.test_pyext(xx) except conf.errors.ConfigurationError: if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: env.append_unique('LIBPATH_PYEXT', [dct['LIBDIR']]) conf.test_pyext(xx) else: raise conf.define('HAVE_PYTHON_H', 1) return all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEXT') result = None if not dct["LDVERSION"]: dct["LDVERSION"] = env['PYTHON_VERSION'] for name in ('python' + dct['LDVERSION'], 'python' + env['PYTHON_VERSION'] + 'm', 'python' + env['PYTHON_VERSION'].replace('.', '')): if not result and env['LIBPATH_PYEMBED']: path = env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check( lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name) if not result and dct['LIBDIR']: path = [dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name) if not result and dct['LIBPL']: path = [dct['LIBPL']] conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name) if not result: path = [os.path.join(dct['prefix'], "libs")] conf.to_log( "\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name) if result: break if result: env['LIBPATH_PYEMBED'] = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") if Utils.is_win32 or dct['Py_ENABLE_SHARED']: env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED'] env['LIB_PYEXT'] = env['LIB_PYEMBED'] conf.to_log( "Include path for Python extensions (found via distutils module): %r\n" % (dct['INCLUDEPY'], )) env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']] env['INCLUDES_PYEMBED'] = [dct['INCLUDEPY']] if env['CC_NAME'] == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env['CXX_NAME'] == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared) conf.check( header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg= 'Distutils not installed? Broken python installation? Get python-config now!' )
def get_numpy_includes(conf): conf.start_msg("Checking numpy includes") (np_includes,) = conf.get_python_variables( ['numpy.get_include()'], ['import numpy']) conf.env.INCLUDES_NUMPY = np_includes conf.end_msg('ok (%s)' % np_includes)
def check_python_version(conf, minver=None): """ Check if the python interpreter is found matching a given minimum version. minver should be a tuple, eg. to check for python >= 2.4.2 pass (2,4,2) as minver. If successful, PYTHON_VERSION is defined as 'MAJOR.MINOR' (eg. '2.4') of the actual python version found, and PYTHONDIR is defined, pointing to the site-packages directory appropriate for this python version, where modules/packages/extensions should be installed. :param minver: minimum version :type minver: tuple of int """ assert minver is None or isinstance(minver, tuple) python = conf.env["PYTHON"] if not python: conf.fatal("could not find the python executable") # Get python version string cmd = [python, "-c", "import sys\nfor x in sys.version_info: print(str(x))"] debug("python: Running python command %r" % cmd) lines = conf.cmd_and_log(cmd).split() assert len(lines) == 5, "found %i lines, expected 5: %r" % (len(lines), lines) pyver_tuple = (int(lines[0]), int(lines[1]), int(lines[2]), lines[3], int(lines[4])) # compare python version with the minimum required result = (minver is None) or (pyver_tuple >= minver) if result: # define useful environment variables pyver = ".".join([str(x) for x in pyver_tuple[:2]]) conf.env["PYTHON_VERSION"] = pyver if "PYTHONDIR" in conf.environ: pydir = conf.environ["PYTHONDIR"] else: if sys.platform == "win32": (python_LIBDEST, pydir) = conf.get_python_variables( python, ["get_config_var('LIBDEST')", "get_python_lib(standard_lib=0, prefix=%r)" % conf.env["PREFIX"]], ["from distutils.sysconfig import get_config_var, get_python_lib"], ) else: python_LIBDEST = None (pydir,) = conf.get_python_variables( python, ["get_python_lib(standard_lib=0, prefix=%r)" % conf.env["PREFIX"]], ["from distutils.sysconfig import get_config_var, get_python_lib"], ) if python_LIBDEST is None: if conf.env["LIBDIR"]: python_LIBDEST = os.path.join(conf.env["LIBDIR"], "python" + pyver) else: python_LIBDEST = os.path.join(conf.env["PREFIX"], "lib", "python" + pyver) if hasattr(conf, "define"): # conf.define is added by the C tool, so may not exist conf.define("PYTHONDIR", pydir) conf.env["PYTHONDIR"] = pydir # Feedback pyver_full = ".".join(map(str, pyver_tuple[:3])) if minver is None: conf.msg("Checking for python version", pyver_full) else: minver_str = ".".join(map(str, minver)) conf.msg("Checking for python version", pyver_tuple, ">= %s" % (minver_str,) and "GREEN" or "YELLOW") if not result: conf.fatal("The python version is too old, expecting %r" % (minver,))
def check_python_headers(conf): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ if not conf.env["CC_NAME"] and not conf.env["CXX_NAME"]: conf.fatal("load a compiler first (gcc, g++, ..)") if not conf.env["PYTHON_VERSION"]: conf.check_python_version() env = conf.env python = env["PYTHON"] if not python: conf.fatal("could not find the python executable") v = "prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS".split() try: lst = conf.get_python_variables( python, ["get_config_var('%s')" % x for x in v], ["from distutils.sysconfig import get_config_var"] ) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ["%s = %r" % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (python, "\n".join(vals))) dct = dict(zip(v, lst)) x = "MACOSX_DEPLOYMENT_TARGET" if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env["pyext_PATTERN"] = "%s" + dct["SO"] # not a mistake # Check for python libraries for embedding all_flags = dct["LDFLAGS"] + " " + dct["LDSHARED"] + " " + dct["CFLAGS"] conf.parse_flags(all_flags, "PYEMBED") conf.parse_flags(all_flags, "PYEXT") result = None name = "python" + env["PYTHON_VERSION"] # LIBPATH_PYEMBED is already set; see if it works. path = env["LIBPATH_PYEMBED"] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check(lib=name, uselib="PYEMBED", libpath=path, mandatory=False) if not result: conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) path = [dct["LIBDIR"] or ""] result = conf.check(lib=name, uselib="PYEMBED", libpath=path, mandatory=False) if not result: conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) path = [dct["LIBPL"] or ""] result = conf.check(lib=name, uselib="PYEMBED", libpath=path, mandatory=False) if not result: conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") path = [os.path.join(dct["prefix"], "libs")] name = "python" + env["PYTHON_VERSION"].replace(".", "") result = conf.check(lib=name, uselib="PYEMBED", libpath=path, mandatory=False) if result: env["LIBPATH_PYEMBED"] = path env.append_value("LIB_PYEMBED", [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if sys.platform == "win32" or sys.platform.startswith("os2") or sys.platform == "darwin" or dct["Py_ENABLE_SHARED"]: env["LIBPATH_PYEXT"] = env["LIBPATH_PYEMBED"] env["LIB_PYEXT"] = env["LIB_PYEMBED"] # We check that pythonX.Y-config exists, and if it exists we # use it to get only the includes, else fall back to distutils. num = ".".join(env["PYTHON_VERSION"].split(".")[:2]) try: conf.find_program("python%s-config" % num, var="PYTHON_CONFIG") except conf.errors.ConfigurationError: conf.find_program("python-config-%s" % num, var="PYTHON_CONFIG", mandatory=False) includes = [] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log("%s %s --includes" % (python, conf.env.PYTHON_CONFIG)).strip().split(): # strip the -I or /I if incstr.startswith("-I") or incstr.startswith("/I"): incstr = incstr[2:] # append include path, unless already given if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions " "(found via python-config --includes): %r\n" % (includes,)) env["INCLUDES_PYEXT"] = includes env["INCLUDES_PYEMBED"] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (dct["INCLUDEPY"],)) env["INCLUDES_PYEXT"] = [dct["INCLUDEPY"]] env["INCLUDES_PYEMBED"] = [dct["INCLUDEPY"]] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env["CC_NAME"] == "gcc": env.append_value("CFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CFLAGS_PYEXT", ["-fno-strict-aliasing"]) if env["CXX_NAME"] == "gcc": env.append_value("CXXFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CXXFLAGS_PYEXT", ["-fno-strict-aliasing"]) # See if it compiles conf.check( header_name="Python.h", define_name="HAVE_PYTHON_H", uselib="PYEMBED", fragment=FRAG, errmsg="Could not find the python development headers", )
def check_python_headers(conf): env = conf.env if not env['CC_NAME'] and not env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not env['PYTHON_VERSION']: conf.check_python_version() pybin = conf.env.PYTHON if not pybin: conf.fatal('Could not find the python executable') v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split( ) try: lst = conf.get_python_variables( ["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEXT') result = None for name in ('python' + env['PYTHON_VERSION'], 'python' + env['PYTHON_VERSION'].replace('.', '')): if not result and env['LIBPATH_PYEMBED']: path = env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check( lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name) if not result and dct['LIBDIR']: path = [dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name) if not result and dct['LIBPL']: path = [dct['LIBPL']] conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name) if not result: path = [os.path.join(dct['prefix'], "libs")] conf.to_log( "\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name) if result: break if result: env['LIBPATH_PYEMBED'] = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") if (Utils.is_win32 or sys.platform.startswith('os2') or dct['Py_ENABLE_SHARED']): env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED'] env['LIB_PYEXT'] = env['LIB_PYEMBED'] num = '.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program([ ''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num ], var='PYTHON_CONFIG', mandatory=False) includes = [] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log([conf.env.PYTHON_CONFIG, '--includes']).strip().split(): if (incstr.startswith('-I') or incstr.startswith('/I')): incstr = incstr[2:] if incstr not in includes: includes.append(incstr) conf.to_log( "Include path for Python extensions (found via python-config --includes): %r\n" % (includes, )) env['INCLUDES_PYEXT'] = includes env['INCLUDES_PYEMBED'] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (dct['INCLUDEPY'], )) env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']] env['INCLUDES_PYEMBED'] = [dct['INCLUDEPY']] if env['CC_NAME'] == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env['CXX_NAME'] == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options) env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared) try: conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg=':-(') except conf.errors.ConfigurationError: xx = conf.env.CXX_NAME and 'cxx' or 'c' conf.check_cfg(msg='Asking python-config for the flags (pyembed)', path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=['--cflags', '--libs', '--ldflags']) conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', msg='Getting pyembed flags from python-config', fragment=FRAG, errmsg='Could not build a python embedded interpreter', features='%s %sprogram pyembed' % (xx, xx)) conf.check_cfg(msg='Asking python-config for the flags (pyext)', path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=['--cflags', '--libs', '--ldflags']) conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', msg='Getting pyext flags from python-config', features='%s %sshlib pyext' % (xx, xx), fragment=FRAG, errmsg='Could not build python extensions')
def check_python_headers(conf): env = conf.env if not env['CC_NAME'] and not env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not env['PYTHON_VERSION']: conf.check_python_version() pybin = conf.env.PYTHON if not pybin: conf.fatal('Could not find the python executable') v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split( ) try: lst = conf.get_python_variables( ["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] if not env.pyext_PATTERN: if dct['SO']: env.pyext_PATTERN = '%s' + dct['SO'] else: env.pyext_PATTERN = (conf.env.cshlib_PATTERN or conf.env.cxxshlib_PATTERN).lstrip('lib') num = '.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program([ ''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num ], var='PYTHON_CONFIG', msg="python-config") all_flags = [['--cflags', '--libs', '--ldflags']] if sys.hexversion < 0x2060000: all_flags = [[x] for x in all_flags[0]] xx = conf.env.CXX_NAME and 'cxx' or 'c' for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyembed %r flags' % ' '.join(flags), path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=flags) conf.check(header_name='Python.h', define_name='HAVE_PYEMBED', msg='Getting pyembed flags from python-config', fragment=FRAG, errmsg='Could not build a python embedded interpreter', features='%s %sprogram pyembed' % (xx, xx)) for flags in all_flags: conf.check_cfg(msg='Asking python-config for pyext %r flags' % ' '.join(flags), path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=flags) conf.check(header_name='Python.h', define_name='HAVE_PYEXT', msg='Getting pyext flags from python-config', features='%s %sshlib pyext' % (xx, xx), fragment=FRAG, errmsg='Could not build python extensions') conf.define('HAVE_PYTHON_H', 1)
def check_python_headers(conf): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ # FIXME rewrite if not conf.env['CC_NAME'] and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env = conf.env pybin = conf.env.PYTHON if not pybin: conf.fatal('could not find the python executable') v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split( ) try: lst = conf.get_python_variables( ["get_config_var('%s') or ''" % x for x in v], ['from distutils.sysconfig import get_config_var']) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] # not a mistake # Check for python libraries for embedding all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') conf.parse_flags(all_flags, 'PYEXT') result = None #name = 'python' + env['PYTHON_VERSION'] # TODO simplify this for name in ('python' + env['PYTHON_VERSION'], 'python' + env['PYTHON_VERSION'].replace('.', '')): if Utils.is_win32 and name == "python2.7": name = "python27" print "walif/tools/python.py: python hack for windows" #name.replace('.', '') # LIBPATH_PYEMBED is already set; see if it works. if not result and env['LIBPATH_PYEMBED']: path = env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check( lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name) if not result and dct['LIBDIR']: path = [dct['LIBDIR']] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name) if not result and dct['LIBPL']: path = [dct['LIBPL']] conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name) if not result: path = [os.path.join(dct['prefix'], "libs")] conf.to_log( "\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n" ) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name) if result: break # do not forget to set LIBPATH_PYEMBED if result: env['LIBPATH_PYEMBED'] = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if (Utils.is_win32 or sys.platform.startswith('os2') or sys.platform == 'darwin' or dct['Py_ENABLE_SHARED']): env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED'] env['LIB_PYEXT'] = env['LIB_PYEMBED'] # We check that pythonX.Y-config exists, and if it exists we # use it to get only the includes, else fall back to distutils. num = '.'.join(env['PYTHON_VERSION'].split('.')[:2]) conf.find_program([ 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num ], var='PYTHON_CONFIG', mandatory=False) includes = [] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log([conf.env.PYTHON_CONFIG, '--includes']).strip().split(): # strip the -I or /I if (incstr.startswith('-I') or incstr.startswith('/I')): incstr = incstr[2:] # append include path, unless already given if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions " "(found via python-config --includes): %r\n" % (includes, )) env['INCLUDES_PYEXT'] = includes env['INCLUDES_PYEMBED'] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (dct['INCLUDEPY'], )) env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']] env['INCLUDES_PYEMBED'] = [dct['INCLUDEPY']] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env['CC_NAME'] == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env['CXX_NAME'] == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) # See if it compiles try: conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg='Could not find the python development headers') except conf.errors.ConfigurationError: # python3.2, oh yeah conf.check_cfg(path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=['--cflags', '--libs']) conf.check( header_name='Python.h', define_name='HAVE_PYTHON_H', msg='Getting the python flags from python-config', uselib='PYEMBED', fragment=FRAG, errmsg='Could not find the python development headers elsewhere')
def check_python_headers(conf): env = conf.env if not env["CC_NAME"] and not env["CXX_NAME"]: conf.fatal("load a compiler first (gcc, g++, ..)") if not env["PYTHON_VERSION"]: conf.check_python_version() pybin = conf.env.PYTHON if not pybin: conf.fatal("Could not find the python executable") v = "prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS".split() try: lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ["%s = %r" % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (pybin, "\n".join(vals))) dct = dict(zip(v, lst)) x = "MACOSX_DEPLOYMENT_TARGET" if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env["pyext_PATTERN"] = "%s" + dct["SO"] all_flags = dct["LDFLAGS"] + " " + dct["CFLAGS"] conf.parse_flags(all_flags, "PYEMBED") all_flags = dct["LDFLAGS"] + " " + dct["LDSHARED"] + " " + dct["CFLAGS"] conf.parse_flags(all_flags, "PYEXT") result = None for name in ( "python" + env["PYTHON_VERSION"], "python" + env["PYTHON_VERSION"] + "m", "python" + env["PYTHON_VERSION"].replace(".", ""), ): if not result and env["LIBPATH_PYEMBED"]: path = env["LIBPATH_PYEMBED"] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in LIBPATH_PYEMBED" % name, ) if not result and dct["LIBDIR"]: path = [dct["LIBDIR"]] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in LIBDIR" % name, ) if not result and dct["LIBPL"]: path = [dct["LIBPL"]] conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in python_LIBPL" % name, ) if not result: path = [os.path.join(dct["prefix"], "libs")] conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in $prefix/libs" % name, ) if result: break if result: env["LIBPATH_PYEMBED"] = path env.append_value("LIB_PYEMBED", [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") if Utils.is_win32 or sys.platform.startswith("os2") or dct["Py_ENABLE_SHARED"]: env["LIBPATH_PYEXT"] = env["LIBPATH_PYEMBED"] env["LIB_PYEXT"] = env["LIB_PYEMBED"] num = ".".join(env["PYTHON_VERSION"].split(".")[:2]) conf.find_program( ["".join(pybin) + "-config", "python%s-config" % num, "python-config-%s" % num, "python%sm-config" % num], var="PYTHON_CONFIG", display_name="python-config", mandatory=False, ) includes = [] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log([conf.env.PYTHON_CONFIG, "--includes"]).strip().split(): if incstr.startswith("-I") or incstr.startswith("/I"): incstr = incstr[2:] if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions (found via python-config --includes): %r\n" % (includes,)) env["INCLUDES_PYEXT"] = includes env["INCLUDES_PYEMBED"] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (dct["INCLUDEPY"],)) env["INCLUDES_PYEXT"] = [dct["INCLUDEPY"]] env["INCLUDES_PYEMBED"] = [dct["INCLUDEPY"]] if env["CC_NAME"] == "gcc": env.append_value("CFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CFLAGS_PYEXT", ["-fno-strict-aliasing"]) if env["CXX_NAME"] == "gcc": env.append_value("CXXFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CXXFLAGS_PYEXT", ["-fno-strict-aliasing"]) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value("CFLAGS_PYEXT", dist_compiler.compile_options) env.append_value("CXXFLAGS_PYEXT", dist_compiler.compile_options) env.append_value("LINKFLAGS_PYEXT", dist_compiler.ldflags_shared) try: conf.check(header_name="Python.h", define_name="HAVE_PYTHON_H", uselib="PYEMBED", fragment=FRAG, errmsg=":-(") except conf.errors.ConfigurationError: xx = conf.env.CXX_NAME and "cxx" or "c" flags = ["--cflags", "--libs", "--ldflags"] for f in flags: conf.check_cfg( msg="Asking python-config for pyembed %s flags" % f, path=conf.env.PYTHON_CONFIG, package="", uselib_store="PYEMBED", args=[f], ) conf.check( header_name="Python.h", define_name="HAVE_PYTHON_H", msg="Getting pyembed flags from python-config", fragment=FRAG, errmsg="Could not build a python embedded interpreter", features="%s %sprogram pyembed" % (xx, xx), ) for f in flags: conf.check_cfg( msg="Asking python-config for pyext %s flags" % f, path=conf.env.PYTHON_CONFIG, package="", uselib_store="PYEXT", args=[f], ) conf.check( header_name="Python.h", define_name="HAVE_PYTHON_H", msg="Getting pyext flags from python-config", features="%s %sshlib pyext" % (xx, xx), fragment=FRAG, errmsg="Could not build python extensions", )
def check_python_version(conf, minver=None): """ Check if the python interpreter is found matching a given minimum version. minver should be a tuple, eg. to check for python >= 2.4.2 pass (2,4,2) as minver. If successful, PYTHON_VERSION is defined as 'MAJOR.MINOR' (eg. '2.4') of the actual python version found, and PYTHONDIR is defined, pointing to the site-packages directory appropriate for this python version, where modules/packages/extensions should be installed. :param minver: minimum version :type minver: tuple of int """ assert minver is None or isinstance(minver, tuple) pybin = conf.env.PYTHON if not pybin: conf.fatal('could not find the python executable') # Get python version string cmd = pybin + [ '-c', 'import sys\nfor x in sys.version_info: print(str(x))' ] Logs.debug('python: Running python command %r', cmd) lines = conf.cmd_and_log(cmd).split() assert len(lines) == 5, "found %r lines, expected 5: %r" % (len(lines), lines) pyver_tuple = (int(lines[0]), int(lines[1]), int(lines[2]), lines[3], int(lines[4])) # Compare python version with the minimum required result = (minver is None) or (pyver_tuple >= minver) if result: # define useful environment variables pyver = '.'.join([str(x) for x in pyver_tuple[:2]]) conf.env.PYTHON_VERSION = pyver if 'PYTHONDIR' in conf.env: # Check if --pythondir was specified pydir = conf.env.PYTHONDIR elif 'PYTHONDIR' in conf.environ: # Check environment for PYTHONDIR pydir = conf.environ['PYTHONDIR'] else: # Finally, try to guess if Utils.is_win32: (python_LIBDEST, pydir) = conf.get_python_variables([ "get_config_var('LIBDEST') or ''", "get_python_lib(standard_lib=0) or ''" ]) else: python_LIBDEST = None (pydir, ) = conf.get_python_variables([ "get_python_lib(standard_lib=0, prefix=%r) or ''" % conf.env.PREFIX ]) if python_LIBDEST is None: if conf.env.LIBDIR: python_LIBDEST = os.path.join(conf.env.LIBDIR, 'python' + pyver) else: python_LIBDEST = os.path.join(conf.env.PREFIX, 'lib', 'python' + pyver) if 'PYTHONARCHDIR' in conf.env: # Check if --pythonarchdir was specified pyarchdir = conf.env.PYTHONARCHDIR elif 'PYTHONARCHDIR' in conf.environ: # Check environment for PYTHONDIR pyarchdir = conf.environ['PYTHONARCHDIR'] else: # Finally, try to guess (pyarchdir, ) = conf.get_python_variables([ "get_python_lib(plat_specific=1, standard_lib=0, prefix=%r) or ''" % conf.env.PREFIX ]) if not pyarchdir: pyarchdir = pydir if hasattr(conf, 'define' ): # conf.define is added by the C tool, so may not exist conf.define('PYTHONDIR', pydir) conf.define('PYTHONARCHDIR', pyarchdir) conf.env.PYTHONDIR = pydir conf.env.PYTHONARCHDIR = pyarchdir # Feedback pyver_full = '.'.join(map(str, pyver_tuple[:3])) if minver is None: conf.msg('Checking for python version', pyver_full) else: minver_str = '.'.join(map(str, minver)) conf.msg('Checking for python version >= %s' % (minver_str, ), pyver_full, color=result and 'GREEN' or 'YELLOW') if not result: conf.fatal('The python version is too old, expecting %r' % (minver, ))
def check_python_headers(conf, features="pyembed pyext"): """ Check for headers and libraries necessary to extend or embed python by using the module *distutils*. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: * PYEXT: for compiling python extensions * PYEMBED: for embedding a python interpreter """ features = Utils.to_list(features) assert ("pyembed" in features) or ( "pyext" in features ), "check_python_headers features must include 'pyembed' and/or 'pyext'" env = conf.env if not env["CC_NAME"] and not env["CXX_NAME"]: conf.fatal("load a compiler first (gcc, g++, ..)") # bypass all the code below for cross-compilation if conf.python_cross_compile(features): return if not env["PYTHON_VERSION"]: conf.check_python_version() pybin = env.PYTHON if not pybin: conf.fatal("Could not find the python executable") # so we actually do all this for compatibility reasons and for obtaining pyext_PATTERN below v = "prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION".split() try: lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v]) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ["%s = %r" % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%s\n" % (pybin, "\n".join(vals))) dct = dict(zip(v, lst)) x = "MACOSX_DEPLOYMENT_TARGET" if dct[x]: env[x] = conf.environ[x] = dct[x] env["pyext_PATTERN"] = "%s" + dct["SO"] # not a mistake # Try to get pythonX.Y-config num = ".".join(env["PYTHON_VERSION"].split(".")[:2]) conf.find_program( ["".join(pybin) + "-config", "python%s-config" % num, "python-config-%s" % num, "python%sm-config" % num], var="PYTHON_CONFIG", msg="python-config", mandatory=False, ) if env.PYTHON_CONFIG: # python2.6-config requires 3 runs all_flags = [["--cflags", "--libs", "--ldflags"]] if sys.hexversion < 0x2070000: all_flags = [[k] for k in all_flags[0]] xx = env.CXX_NAME and "cxx" or "c" if "pyembed" in features: for flags in all_flags: conf.check_cfg( msg="Asking python-config for pyembed %r flags" % " ".join(flags), path=env.PYTHON_CONFIG, package="", uselib_store="PYEMBED", args=flags, ) conf.check( header_name="Python.h", define_name="HAVE_PYEMBED", msg="Getting pyembed flags from python-config", fragment=FRAG, errmsg="Could not build a python embedded interpreter", features="%s %sprogram pyembed" % (xx, xx), ) if "pyext" in features: for flags in all_flags: conf.check_cfg( msg="Asking python-config for pyext %r flags" % " ".join(flags), path=env.PYTHON_CONFIG, package="", uselib_store="PYEXT", args=flags, ) conf.check( header_name="Python.h", define_name="HAVE_PYEXT", msg="Getting pyext flags from python-config", features="%s %sshlib pyext" % (xx, xx), fragment=FRAG, errmsg="Could not build python extensions", ) conf.define("HAVE_PYTHON_H", 1) return # No python-config, do something else on windows systems all_flags = dct["LDFLAGS"] + " " + dct["CFLAGS"] conf.parse_flags(all_flags, "PYEMBED") all_flags = dct["LDFLAGS"] + " " + dct["LDSHARED"] + " " + dct["CFLAGS"] conf.parse_flags(all_flags, "PYEXT") result = None if not dct["LDVERSION"]: dct["LDVERSION"] = env["PYTHON_VERSION"] # further simplification will be complicated for name in ( "python" + dct["LDVERSION"], "python" + env["PYTHON_VERSION"] + "m", "python" + env["PYTHON_VERSION"].replace(".", ""), ): # LIBPATH_PYEMBED is already set; see if it works. if not result and env["LIBPATH_PYEMBED"]: path = env["LIBPATH_PYEMBED"] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in LIBPATH_PYEMBED" % name, ) if not result and dct["LIBDIR"]: path = [dct["LIBDIR"]] conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in LIBDIR" % name, ) if not result and dct["LIBPL"]: path = [dct["LIBPL"]] conf.to_log( "\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n" ) result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in python_LIBPL" % name, ) if not result: path = [os.path.join(dct["prefix"], "libs")] conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") result = conf.check( lib=name, uselib="PYEMBED", libpath=path, mandatory=False, msg="Checking for library %s in $prefix/libs" % name, ) if result: break # do not forget to set LIBPATH_PYEMBED if result: env["LIBPATH_PYEMBED"] = path env.append_value("LIB_PYEMBED", [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if Utils.is_win32 or dct["Py_ENABLE_SHARED"]: env["LIBPATH_PYEXT"] = env["LIBPATH_PYEMBED"] env["LIB_PYEXT"] = env["LIB_PYEMBED"] conf.to_log("Include path for Python extensions (found via distutils module): %r\n" % (dct["INCLUDEPY"],)) env["INCLUDES_PYEXT"] = [dct["INCLUDEPY"]] env["INCLUDES_PYEMBED"] = [dct["INCLUDEPY"]] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env["CC_NAME"] == "gcc": env.append_value("CFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CFLAGS_PYEXT", ["-fno-strict-aliasing"]) if env["CXX_NAME"] == "gcc": env.append_value("CXXFLAGS_PYEMBED", ["-fno-strict-aliasing"]) env.append_value("CXXFLAGS_PYEXT", ["-fno-strict-aliasing"]) if env.CC_NAME == "msvc": from distutils.msvccompiler import MSVCCompiler dist_compiler = MSVCCompiler() dist_compiler.initialize() env.append_value("CFLAGS_PYEXT", dist_compiler.compile_options) env.append_value("CXXFLAGS_PYEXT", dist_compiler.compile_options) env.append_value("LINKFLAGS_PYEXT", dist_compiler.ldflags_shared) # See if it compiles conf.check( header_name="Python.h", define_name="HAVE_PYTHON_H", uselib="PYEMBED", fragment=FRAG, errmsg="Distutils not installed? Broken python installation? Get python-config now!", )
def check_python_version(conf, minver=None): """ Check if the python interpreter is found matching a given minimum version. minver should be a tuple, eg. to check for python >= 2.4.2 pass (2,4,2) as minver. If successful, PYTHON_VERSION is defined as 'MAJOR.MINOR' (eg. '2.4') of the actual python version found, and PYTHONDIR is defined, pointing to the site-packages directory appropriate for this python version, where modules/packages/extensions should be installed. :param minver: minimum version :type minver: tuple of int """ assert minver is None or isinstance(minver, tuple) pybin = conf.env['PYTHON'] if not pybin: conf.fatal('could not find the python executable') # Get python version string cmd = pybin + ['-c', 'import sys\nfor x in sys.version_info: print(str(x))'] Logs.debug('python: Running python command %r' % cmd) lines = conf.cmd_and_log(cmd).split() assert len(lines) == 5, "found %i lines, expected 5: %r" % (len(lines), lines) pyver_tuple = (int(lines[0]), int(lines[1]), int(lines[2]), lines[3], int(lines[4])) # compare python version with the minimum required result = (minver is None) or (pyver_tuple >= minver) if result: # define useful environment variables pyver = '.'.join([str(x) for x in pyver_tuple[:2]]) conf.env['PYTHON_VERSION'] = pyver if 'PYTHONDIR' in conf.environ: pydir = conf.environ['PYTHONDIR'] else: if Utils.is_win32: (python_LIBDEST, pydir) = conf.get_python_variables( ["get_config_var('LIBDEST') or ''", "get_python_lib(standard_lib=0, prefix=%r) or ''" % conf.env['PREFIX']]) else: python_LIBDEST = None (pydir,) = conf.get_python_variables( ["get_python_lib(standard_lib=0, prefix=%r) or ''" % conf.env['PREFIX']]) if python_LIBDEST is None: if conf.env['LIBDIR']: python_LIBDEST = os.path.join(conf.env['LIBDIR'], "python" + pyver) else: python_LIBDEST = os.path.join(conf.env['PREFIX'], "lib", "python" + pyver) if 'PYTHONARCHDIR' in conf.environ: pyarchdir = conf.environ['PYTHONARCHDIR'] else: (pyarchdir, ) = conf.get_python_variables( ["get_python_lib(plat_specific=1, standard_lib=0, prefix=%r) or ''" % conf.env['PREFIX']]) if not pyarchdir: pyarchdir = pydir if hasattr(conf, 'define'): # conf.define is added by the C tool, so may not exist conf.define('PYTHONDIR', pydir) conf.define('PYTHONARCHDIR', pyarchdir) conf.env['PYTHONDIR'] = pydir conf.env['PYTHONARCHDIR'] = pyarchdir # Feedback pyver_full = '.'.join(map(str, pyver_tuple[:3])) if minver is None: conf.msg('Checking for python version', pyver_full) else: minver_str = '.'.join(map(str, minver)) conf.msg('Checking for python version', pyver_tuple, ">= %s" % (minver_str,) and 'GREEN' or 'YELLOW') if not result: conf.fatal('The python version is too old, expecting %r' % (minver,))
def check_python_headers(conf): """Check for headers and libraries necessary to extend or embed python. On success the environment variables xxx_PYEXT and xxx_PYEMBED are added for uselib PYEXT: for compiling python extensions PYEMBED: for embedding a python interpreter""" if not conf.env['CC_NAME'] and not conf.env['CXX_NAME']: conf.fatal('load a compiler first (gcc, g++, ..)') if not conf.env['PYTHON_VERSION']: conf.check_python_version() env = conf.env python = env['PYTHON'] if not python: conf.fatal('could not find the python executable') v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS'.split() try: lst = conf.get_python_variables(python, ["get_config_var('%s')" % x for x in v], ['from distutils.sysconfig import get_config_var']) except RuntimeError: conf.fatal("Python development headers not found (-v for details).") vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] conf.to_log("Configuration returned from %r:\n%r\n" % (python, '\n'.join(vals))) dct = dict(zip(v, lst)) x = 'MACOSX_DEPLOYMENT_TARGET' if dct[x]: conf.env[x] = conf.environ[x] = dct[x] env['pyext_PATTERN'] = '%s' + dct['SO'] # not a mistake # Check for python libraries for embedding all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] conf.parse_flags(all_flags, 'PYEMBED') conf.parse_flags(all_flags, 'PYEXT') result = None name = 'python' + env['PYTHON_VERSION'] # LIBPATH_PYEMBED is already set; see if it works. path = env['LIBPATH_PYEMBED'] conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if not result: conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) path = [dct['LIBDIR'] or ''] result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if not result: conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") path = [dct['LIBPL'] or ''] result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if not result: conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") path = [os.path.join(dct['prefix'], "libs")] name = 'python' + env['PYTHON_VERSION'].replace('.', '') result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False) if result: env['LIBPATH_PYEMBED'] = path env.append_value('LIB_PYEMBED', [name]) else: conf.to_log("\n\n### LIB NOT FOUND\n") # under certain conditions, python extensions must link to # python libraries, not just python embedding programs. if (sys.platform == 'win32' or sys.platform.startswith('os2') or sys.platform == 'darwin' or dct['Py_ENABLE_SHARED']): env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED'] env['LIB_PYEXT'] = env['LIB_PYEMBED'] # We check that pythonX.Y-config exists, and if it exists we # use it to get only the includes, else fall back to distutils. num = '.'.join(env['PYTHON_VERSION'].split('.')[:2]) try: conf.find_program( 'python%s-config' % num, var='PYTHON_CONFIG') except conf.errors.ConfigurationError: conf.find_program( 'python-config-%s' % num, var='PYTHON_CONFIG', mandatory=False) includes = [] if conf.env.PYTHON_CONFIG: for incstr in conf.cmd_and_log("%s %s --includes" % (python, conf.env.PYTHON_CONFIG)).strip().split(): # strip the -I or /I if (incstr.startswith('-I') or incstr.startswith('/I')): incstr = incstr[2:] # append include path, unless already given if incstr not in includes: includes.append(incstr) conf.to_log("Include path for Python extensions " "(found via python-config --includes): %r\n" % (includes,)) env['INCLUDES_PYEXT'] = includes env['INCLUDES_PYEMBED'] = includes else: conf.to_log("Include path for Python extensions " "(found via distutils module): %r\n" % (dct['INCLUDEPY'],)) env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']] env['INCLUDES_PYEMBED'] = [dct['INCLUDEPY']] # Code using the Python API needs to be compiled with -fno-strict-aliasing if env['CC_NAME'] == 'gcc': env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) if env['CXX_NAME'] == 'gcc': env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) # See if it compiles conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg='Could not find the python development headers')