upload buildutils, fetched from upstream git repo
This commit is contained in:
Thomas Spura
parent
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"""Detect zmq version"""
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#
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# Copyright (c) 2011 Min Ragan-Kelley
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#
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# This file is part of pyzmq, copied and adapted from h5py.
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# h5py source used under the New BSD license
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#
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# h5py: <http://code.google.com/p/h5py/>
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# BSD license: <http://www.opensource.org/licenses/bsd-license.php>
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#
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# pyzmq is free software; you can redistribute it and/or modify it under
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# the terms of the Lesser GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# pyzmq is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# Lesser GNU General Public License for more details.
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#
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# You should have received a copy of the Lesser GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import shutil
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import sys
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import os
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import logging
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import pickle
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from distutils import ccompiler
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from subprocess import Popen, PIPE
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try:
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from configparser import ConfigParser
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except:
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from ConfigParser import ConfigParser
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pjoin = os.path.join
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#-----------------------------------------------------------------------------
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# Logging (adapted from h5py: http://h5py.googlecode.com)
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#-----------------------------------------------------------------------------
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logger = logging.getLogger()
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logger.addHandler(logging.StreamHandler(sys.stderr))
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def debug(what):
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pass
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def fatal(instring, code=1):
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logger.error("Fatal: "+instring)
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exit(code)
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def warn(instring):
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logger.error("Warning: "+instring)
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#-----------------------------------------------------------------------------
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# Utility functions (adapted from h5py: http://h5py.googlecode.com)
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#-----------------------------------------------------------------------------
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def detect_zmq(basedir, **compiler_attrs):
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"""Compile, link & execute a test program, in empty directory `basedir`.
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The C compiler will be updated with any keywords given via setattr.
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Parameters
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----------
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basedir : path
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The location where the test program will be compiled and run
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**compiler_attrs : dict
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Any extra compiler attributes, which will be set via ``setattr(cc)``.
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Returns
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-------
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A dict of properties for zmq compilation, with the following two keys:
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vers : tuple
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The ZMQ version as a tuple of ints, e.g. (2,2,0)
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options : dict
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The compiler options used to compile the test function, e.g. `include_dirs`,
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`library_dirs`, `libs`, etc.
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"""
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cc = ccompiler.new_compiler()
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for name, val in compiler_attrs.items():
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setattr(cc, name, val)
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cfile = pjoin(basedir, 'vers.c')
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efile = pjoin(basedir, 'vers')
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f = open(cfile, 'w')
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try:
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f.write(
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r"""
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#include <stdio.h>
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#include "zmq.h"
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int main(){
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unsigned int major, minor, patch;
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zmq_version(&major, &minor, &patch);
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fprintf(stdout, "vers: %d.%d.%d\n", major, minor, patch);
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return 0;
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}
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""")
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finally:
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f.close()
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if sys.platform == 'darwin':
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# allow for missing UB arch, since it will still work:
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preargs = ['-undefined', 'dynamic_lookup']
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else:
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preargs = None
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objs = cc.compile([cfile])
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cc.link_executable(objs, efile, extra_preargs=preargs)
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result = Popen(efile, stdout=PIPE, stderr=PIPE)
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so, se = result.communicate()
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# for py3k:
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so = so.decode()
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se = se.decode()
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if result.returncode:
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msg = "Error running version detection script:\n%s\n%s" % (so,se)
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logging.error(msg)
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raise IOError(msg)
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handlers = {'vers': lambda val: tuple(int(v) for v in val.split('.'))}
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props = {}
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for line in (x for x in so.split('\n') if x):
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key, val = line.split(':')
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props[key] = handlers[key](val)
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props['options'] = compiler_attrs
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return props
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def localpath(*args):
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plist = [os.path.dirname(__file__)]+list(args)
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return os.path.abspath(pjoin(*plist))
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def loadpickle(name):
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""" Load object from pickle file, or None if it can't be opened """
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name = pjoin('conf', name)
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try:
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f = open(name,'rb')
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except IOError:
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# raise
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return None
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try:
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return pickle.load(f)
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except Exception:
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# raise
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return None
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finally:
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f.close()
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def savepickle(name, data):
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""" Save to pickle file, exiting if it can't be written """
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if not os.path.exists('conf'):
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os.mkdir('conf')
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name = pjoin('conf', name)
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try:
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f = open(name, 'wb')
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except IOError:
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fatal("Can't open pickle file \"%s\" for writing" % name)
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try:
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pickle.dump(data, f, 0)
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finally:
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f.close()
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def v_str(v_tuple):
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"""turn (2,0,1) into '2.0.1'."""
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return ".".join(str(x) for x in v_tuple)
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def get_eargs():
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""" Look for options in environment vars """
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settings = {}
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zmq = os.environ.get("ZMQ_DIR", '')
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if zmq != '':
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debug("Found environ var ZMQ_DIR=%s" % zmq)
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settings['zmq'] = zmq
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return settings
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def get_cfg_args():
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""" Look for options in setup.cfg """
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settings = {}
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zmq = ''
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if not os.path.exists('setup.cfg'):
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return settings
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cfg = ConfigParser()
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cfg.read('setup.cfg')
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if 'build_ext' in cfg.sections() and \
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cfg.has_option('build_ext', 'include_dirs'):
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includes = cfg.get('build_ext', 'include_dirs')
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include = includes.split(os.pathsep)[0]
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if include.endswith('include') and os.path.isdir(include):
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zmq = include[:-8]
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if zmq != '':
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debug("Found ZMQ=%s in setup.cfg" % zmq)
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settings['zmq'] = zmq
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return settings
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def get_cargs():
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""" Look for global options in the command line """
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settings = loadpickle('buildconf.pickle')
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if settings is None: settings = {}
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for arg in sys.argv[:]:
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if arg.find('--zmq=') == 0:
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zmq = arg.split('=')[-1]
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if zmq.lower() == 'default':
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settings.pop('zmq', None)
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else:
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settings['zmq'] = zmq
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sys.argv.remove(arg)
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savepickle('buildconf.pickle', settings)
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return settings
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def discover_settings():
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""" Discover custom settings for ZMQ path"""
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settings = get_cfg_args() # lowest priority
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settings.update(get_eargs())
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settings.update(get_cargs()) # highest priority
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return settings.get('zmq')
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def copy_and_patch_libzmq(ZMQ, libzmq):
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"""copy libzmq into source dir, and patch it if necessary.
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This command is necessary prior to running a bdist on Linux or OS X.
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"""
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if sys.platform.startswith('win'):
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return
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# copy libzmq into zmq for bdist
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local = localpath('zmq',libzmq)
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if ZMQ is None and not os.path.exists(local):
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fatal("Please specify zmq prefix via `setup.py configure --zmq=/path/to/zmq` "
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"or copy libzmq into zmq/ manually prior to running bdist.")
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try:
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lib = pjoin(ZMQ, 'lib', libzmq)
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print ("copying %s -> %s"%(lib, local))
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shutil.copy(lib, local)
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except Exception:
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if not os.path.exists(local):
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fatal("Could not copy libzmq into zmq/, which is necessary for bdist. "
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"Please specify zmq prefix via `setup.py configure --zmq=/path/to/zmq` "
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"or copy libzmq into zmq/ manually.")
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finally:
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# link libzmq.dylib -> libzmq.1.dylib
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link = localpath('zmq',libzmq.replace('.1',''))
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if not os.path.exists(link):
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os.symlink(libzmq, link)
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if sys.platform == 'darwin':
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# patch install_name on darwin, instead of using rpath
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cmd = ['install_name_tool', '-id', '@loader_path/../%s'%libzmq, local]
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try:
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p = Popen(cmd, stdout=PIPE,stderr=PIPE)
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except OSError:
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fatal("install_name_tool not found, cannot patch libzmq for bundling.")
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out,err = p.communicate()
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if p.returncode:
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fatal("Could not patch bundled libzmq install_name: %s"%err, p.returncode)
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