mirror of
https://github.com/python/cpython
synced 2024-09-16 04:30:00 +00:00
0a8e57248b
To embed Python into an application, a new --embed option must be passed to "python3-config --libs --embed" to get "-lpython3.8" (link the application to libpython). To support both 3.8 and older, try "python3-config --libs --embed" first and fallback to "python3-config --libs" (without --embed) if the previous command fails. Add a pkg-config "python-3.8-embed" module to embed Python into an application: "pkg-config python-3.8-embed --libs" includes "-lpython3.8". To support both 3.8 and older, try "pkg-config python-X.Y-embed --libs" first and fallback to "pkg-config python-X.Y --libs" (without --embed) if the previous command fails (replace "X.Y" with the Python version). On the other hand, "pkg-config python3.8 --libs" no longer contains "-lpython3.8". C extensions must not be linked to libpython (except on Android, case handled by the script); this change is backward incompatible on purpose. "make install" now also installs "python-3.8-embed.pc".
75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
#!@EXENAME@
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# -*- python -*-
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# Keep this script in sync with python-config.sh.in
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import getopt
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import os
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import sys
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import sysconfig
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valid_opts = ['prefix', 'exec-prefix', 'includes', 'libs', 'cflags',
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'ldflags', 'extension-suffix', 'help', 'abiflags', 'configdir',
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'embed']
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def exit_with_usage(code=1):
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print("Usage: {0} [{1}]".format(
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sys.argv[0], '|'.join('--'+opt for opt in valid_opts)), file=sys.stderr)
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sys.exit(code)
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try:
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opts, args = getopt.getopt(sys.argv[1:], '', valid_opts)
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except getopt.error:
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exit_with_usage()
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if not opts:
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exit_with_usage()
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pyver = sysconfig.get_config_var('VERSION')
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getvar = sysconfig.get_config_var
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opt_flags = [flag for (flag, val) in opts]
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if '--help' in opt_flags:
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exit_with_usage(code=0)
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for opt in opt_flags:
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if opt == '--prefix':
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print(sysconfig.get_config_var('prefix'))
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elif opt == '--exec-prefix':
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print(sysconfig.get_config_var('exec_prefix'))
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elif opt in ('--includes', '--cflags'):
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flags = ['-I' + sysconfig.get_path('include'),
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'-I' + sysconfig.get_path('platinclude')]
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if opt == '--cflags':
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flags.extend(getvar('CFLAGS').split())
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print(' '.join(flags))
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elif opt in ('--libs', '--ldflags'):
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libs = []
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if '--embed' in opt_flags:
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libs.append('-lpython' + pyver + sys.abiflags)
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else:
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libpython = getvar('LIBPYTHON')
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if libpython:
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libs.append(libpython)
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libs.extend(getvar('LIBS').split() + getvar('SYSLIBS').split())
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# add the prefix/lib/pythonX.Y/config dir, but only if there is no
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# shared library in prefix/lib/.
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if opt == '--ldflags':
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if not getvar('Py_ENABLE_SHARED'):
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libs.insert(0, '-L' + getvar('LIBPL'))
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print(' '.join(libs))
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elif opt == '--extension-suffix':
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print(sysconfig.get_config_var('EXT_SUFFIX'))
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elif opt == '--abiflags':
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print(sys.abiflags)
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elif opt == '--configdir':
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print(sysconfig.get_config_var('LIBPL'))
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