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, 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, 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 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,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!')