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8703178258
Only complain if the config target is >= 10.3 and the current target is < 10.3. The check was originally added to ensure that incompatible LDSHARED flags are not used, because -undefined dynamic_lookup is used when building for 10.3 and later, and is not supported on older OS versions. Apart from that, there should be no problem in general with using an older target. Authored-by: Joshua Root <jmr@macports.org>
130 lines
4.6 KiB
Python
130 lines
4.6 KiB
Python
"""distutils.spawn
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Provides the 'spawn()' function, a front-end to various platform-
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specific functions for launching another program in a sub-process.
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Also provides the 'find_executable()' to search the path for a given
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executable name.
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"""
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import sys
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import os
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import subprocess
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from distutils.errors import DistutilsPlatformError, DistutilsExecError
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from distutils.debug import DEBUG
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from distutils import log
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if sys.platform == 'darwin':
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_cfg_target = None
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_cfg_target_split = None
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def spawn(cmd, search_path=1, verbose=0, dry_run=0):
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"""Run another program, specified as a command list 'cmd', in a new process.
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'cmd' is just the argument list for the new process, ie.
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cmd[0] is the program to run and cmd[1:] are the rest of its arguments.
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There is no way to run a program with a name different from that of its
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executable.
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If 'search_path' is true (the default), the system's executable
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search path will be used to find the program; otherwise, cmd[0]
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must be the exact path to the executable. If 'dry_run' is true,
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the command will not actually be run.
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Raise DistutilsExecError if running the program fails in any way; just
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return on success.
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"""
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# cmd is documented as a list, but just in case some code passes a tuple
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# in, protect our %-formatting code against horrible death
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cmd = list(cmd)
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log.info(' '.join(cmd))
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if dry_run:
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return
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if search_path:
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executable = find_executable(cmd[0])
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if executable is not None:
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cmd[0] = executable
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env = None
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if sys.platform == 'darwin':
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global _cfg_target, _cfg_target_split
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if _cfg_target is None:
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from distutils import sysconfig
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_cfg_target = sysconfig.get_config_var(
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'MACOSX_DEPLOYMENT_TARGET') or ''
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if _cfg_target:
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_cfg_target_split = [int(x) for x in _cfg_target.split('.')]
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if _cfg_target:
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# Ensure that the deployment target of the build process is not
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# less than 10.3 if the interpreter was built for 10.3 or later.
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# This ensures extension modules are built with correct
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# compatibility values, specifically LDSHARED which can use
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# '-undefined dynamic_lookup' which only works on >= 10.3.
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cur_target = os.environ.get('MACOSX_DEPLOYMENT_TARGET', _cfg_target)
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cur_target_split = [int(x) for x in cur_target.split('.')]
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if _cfg_target_split[:2] >= [10, 3] and cur_target_split[:2] < [10, 3]:
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my_msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: '
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'now "%s" but "%s" during configure;'
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'must use 10.3 or later'
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% (cur_target, _cfg_target))
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raise DistutilsPlatformError(my_msg)
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env = dict(os.environ,
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MACOSX_DEPLOYMENT_TARGET=cur_target)
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try:
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proc = subprocess.Popen(cmd, env=env)
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proc.wait()
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exitcode = proc.returncode
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except OSError as exc:
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if not DEBUG:
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cmd = cmd[0]
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raise DistutilsExecError(
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"command %r failed: %s" % (cmd, exc.args[-1])) from exc
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if exitcode:
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if not DEBUG:
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cmd = cmd[0]
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raise DistutilsExecError(
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"command %r failed with exit code %s" % (cmd, exitcode))
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def find_executable(executable, path=None):
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"""Tries to find 'executable' in the directories listed in 'path'.
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A string listing directories separated by 'os.pathsep'; defaults to
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os.environ['PATH']. Returns the complete filename or None if not found.
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"""
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_, ext = os.path.splitext(executable)
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if (sys.platform == 'win32') and (ext != '.exe'):
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executable = executable + '.exe'
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if os.path.isfile(executable):
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return executable
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if path is None:
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path = os.environ.get('PATH', None)
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if path is None:
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try:
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path = os.confstr("CS_PATH")
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except (AttributeError, ValueError):
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# os.confstr() or CS_PATH is not available
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path = os.defpath
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# bpo-35755: Don't use os.defpath if the PATH environment variable is
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# set to an empty string
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# PATH='' doesn't match, whereas PATH=':' looks in the current directory
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if not path:
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return None
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paths = path.split(os.pathsep)
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for p in paths:
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f = os.path.join(p, executable)
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if os.path.isfile(f):
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# the file exists, we have a shot at spawn working
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return f
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return None
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