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Issue 1471 - use python-config to detect python
This commit is contained in:
Thomas Nagy
parent
69bb9f9209
commit
49a8bb15b2
@ -259,123 +259,31 @@ def check_python_headers(conf):
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if dct[x]:
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conf.env[x] = conf.environ[x] = dct[x]
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env['pyext_PATTERN'] = '%s' + dct['SO'] # not a mistake
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if not env.pyext_PATTERN:
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if dct['SO']:
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env.pyext_PATTERN = '%s' + dct['SO'] # not a mistake
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else:
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env.pyext_PATTERN = (conf.env.cshlib_PATTERN or conf.env.cxxshlib_PATTERN).lstrip('lib')
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# Check for python libraries for embedding
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all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS']
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conf.parse_flags(all_flags, 'PYEMBED')
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all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS']
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conf.parse_flags(all_flags, 'PYEXT')
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result = None
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#name = 'python' + env['PYTHON_VERSION']
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if not dct["LDVERSION"]:
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dct["LDVERSION"] = env['PYTHON_VERSION']
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# TODO simplify this
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for name in ('python' + dct['LDVERSION'], 'python' + env['PYTHON_VERSION'] + 'm', 'python' + env['PYTHON_VERSION'].replace('.', '')):
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# LIBPATH_PYEMBED is already set; see if it works.
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if not result and env['LIBPATH_PYEMBED']:
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path = env['LIBPATH_PYEMBED']
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conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path)
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result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name)
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if not result and dct['LIBDIR']:
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path = [dct['LIBDIR']]
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conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path)
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result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name)
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if not result and dct['LIBPL']:
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path = [dct['LIBPL']]
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conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n")
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result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name)
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if not result:
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path = [os.path.join(dct['prefix'], "libs")]
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conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n")
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result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name)
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if result:
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break # do not forget to set LIBPATH_PYEMBED
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if result:
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env['LIBPATH_PYEMBED'] = path
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env.append_value('LIB_PYEMBED', [name])
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else:
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conf.to_log("\n\n### LIB NOT FOUND\n")
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# under certain conditions, python extensions must link to
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# python libraries, not just python embedding programs.
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if Utils.is_win32 or dct['Py_ENABLE_SHARED']:
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env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED']
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env['LIB_PYEXT'] = env['LIB_PYEMBED']
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# We check that pythonX.Y-config exists, and if it exists we
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# use it to get only the includes, else fall back to distutils.
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# We require pythonX.Y-config to get the flags
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num = '.'.join(env['PYTHON_VERSION'].split('.')[:2])
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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)
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conf.find_program([''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num], var='PYTHON_CONFIG', msg="python-config")
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includes = []
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if conf.env.PYTHON_CONFIG:
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for incstr in conf.cmd_and_log(conf.env.PYTHON_CONFIG + ['--includes']).strip().split():
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# strip the -I or /I
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if (incstr.startswith('-I') or incstr.startswith('/I')):
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incstr = incstr[2:]
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# append include path, unless already given
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if incstr not in includes:
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includes.append(incstr)
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conf.to_log("Include path for Python extensions (found via python-config --includes): %r\n" % (includes,))
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env['INCLUDES_PYEXT'] = includes
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env['INCLUDES_PYEMBED'] = includes
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else:
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conf.to_log("Include path for Python extensions "
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"(found via distutils module): %r\n" % (dct['INCLUDEPY'],))
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env['INCLUDES_PYEXT'] = [dct['INCLUDEPY']]
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env['INCLUDES_PYEMBED'] = [dct['INCLUDEPY']]
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flags = ['--cflags', '--libs', '--ldflags']
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xx = conf.env.CXX_NAME and 'cxx' or 'c'
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# Code using the Python API needs to be compiled with -fno-strict-aliasing
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if env['CC_NAME'] == 'gcc':
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env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing'])
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env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing'])
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if env['CXX_NAME'] == 'gcc':
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env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing'])
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env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing'])
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conf.check_cfg(msg='Asking python-config for pyembed %r flags' % ' '.join(flags),
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path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=flags)
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conf.check(header_name='Python.h', define_name='HAVE_PYEMBED', msg='Getting pyembed flags from python-config',
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fragment=FRAG, errmsg='Could not build a python embedded interpreter',
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features='%s %sprogram pyembed' % (xx, xx))
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if env.CC_NAME == "msvc":
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from distutils.msvccompiler import MSVCCompiler
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dist_compiler = MSVCCompiler()
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dist_compiler.initialize()
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env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options)
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env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options)
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env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared)
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conf.check_cfg(msg='Asking python-config for pyext %r flags' % ' '.join(flags),
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path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=flags)
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conf.check(header_name='Python.h', define_name='HAVE_PYEXT', msg='Getting pyext flags from python-config',
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features='%s %sshlib pyext' % (xx, xx), fragment=FRAG, errmsg='Could not build python extensions')
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# See if it compiles
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try:
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conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H',
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uselib='PYEMBED', fragment=FRAG,
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errmsg=':-(')
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except conf.errors.ConfigurationError:
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# python3.2, oh yeah
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xx = conf.env.CXX_NAME and 'cxx' or 'c'
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flags = ['--cflags', '--libs', '--ldflags']
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for f in flags:
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conf.check_cfg(msg='Asking python-config for pyembed %s flags' % f,
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path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=[f])
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conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', msg='Getting pyembed flags from python-config',
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fragment=FRAG, errmsg='Could not build a python embedded interpreter',
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features='%s %sprogram pyembed' % (xx, xx))
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for f in flags:
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conf.check_cfg(msg='Asking python-config for pyext %s flags' % f,
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path=conf.env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=[f])
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conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', msg='Getting pyext flags from python-config',
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features='%s %sshlib pyext' % (xx, xx), fragment=FRAG, errmsg='Could not build python extensions')
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conf.define('HAVE_PYTHON_H', 1)
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@conf
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def check_python_version(conf, minver=None):
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