/usr/share/pyshared/setuptools/command/build_ext.py is in python-setuptools 0.6.24-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 | from distutils.command.build_ext import build_ext as _du_build_ext
try:
# Attempt to use Pyrex for building extensions, if available
from Pyrex.Distutils.build_ext import build_ext as _build_ext
except ImportError:
_build_ext = _du_build_ext
import os, sys
from distutils.file_util import copy_file
from setuptools.extension import Library
from distutils.ccompiler import new_compiler
from distutils.sysconfig import customize_compiler, get_config_var
get_config_var("LDSHARED") # make sure _config_vars is initialized
from distutils.sysconfig import _config_vars
from distutils import log
from distutils.errors import *
have_rtld = False
use_stubs = False
libtype = 'shared'
if sys.platform == "darwin":
use_stubs = True
elif os.name != 'nt':
try:
from dl import RTLD_NOW
have_rtld = True
use_stubs = True
except ImportError:
pass
def if_dl(s):
if have_rtld:
return s
return ''
class build_ext(_build_ext):
def run(self):
"""Build extensions in build directory, then copy if --inplace"""
old_inplace, self.inplace = self.inplace, 0
_build_ext.run(self)
self.inplace = old_inplace
if old_inplace:
self.copy_extensions_to_source()
def copy_extensions_to_source(self):
build_py = self.get_finalized_command('build_py')
for ext in self.extensions:
fullname = self.get_ext_fullname(ext.name)
filename = self.get_ext_filename(fullname)
modpath = fullname.split('.')
package = '.'.join(modpath[:-1])
package_dir = build_py.get_package_dir(package)
dest_filename = os.path.join(package_dir,os.path.basename(filename))
src_filename = os.path.join(self.build_lib,filename)
# Always copy, even if source is older than destination, to ensure
# that the right extensions for the current Python/platform are
# used.
copy_file(
src_filename, dest_filename, verbose=self.verbose,
dry_run=self.dry_run
)
if ext._needs_stub:
self.write_stub(package_dir or os.curdir, ext, True)
if _build_ext is not _du_build_ext and not hasattr(_build_ext,'pyrex_sources'):
# Workaround for problems using some Pyrex versions w/SWIG and/or 2.4
def swig_sources(self, sources, *otherargs):
# first do any Pyrex processing
sources = _build_ext.swig_sources(self, sources) or sources
# Then do any actual SWIG stuff on the remainder
return _du_build_ext.swig_sources(self, sources, *otherargs)
def get_ext_filename(self, fullname):
filename = _build_ext.get_ext_filename(self,fullname)
if fullname not in self.ext_map:
return filename
ext = self.ext_map[fullname]
if isinstance(ext,Library):
fn, ext = os.path.splitext(filename)
return self.shlib_compiler.library_filename(fn,libtype)
elif use_stubs and ext._links_to_dynamic:
d,fn = os.path.split(filename)
return os.path.join(d,'dl-'+fn)
else:
return filename
def initialize_options(self):
_build_ext.initialize_options(self)
self.shlib_compiler = None
self.shlibs = []
self.ext_map = {}
def finalize_options(self):
_build_ext.finalize_options(self)
self.extensions = self.extensions or []
self.check_extensions_list(self.extensions)
self.shlibs = [ext for ext in self.extensions
if isinstance(ext,Library)]
if self.shlibs:
self.setup_shlib_compiler()
for ext in self.extensions:
ext._full_name = self.get_ext_fullname(ext.name)
for ext in self.extensions:
fullname = ext._full_name
self.ext_map[fullname] = ext
# distutils 3.1 will also ask for module names
# XXX what to do with conflicts?
self.ext_map[fullname.split('.')[-1]] = ext
ltd = ext._links_to_dynamic = \
self.shlibs and self.links_to_dynamic(ext) or False
ext._needs_stub = ltd and use_stubs and not isinstance(ext,Library)
filename = ext._file_name = self.get_ext_filename(fullname)
libdir = os.path.dirname(os.path.join(self.build_lib,filename))
if ltd and libdir not in ext.library_dirs:
ext.library_dirs.append(libdir)
if ltd and use_stubs and os.curdir not in ext.runtime_library_dirs:
ext.runtime_library_dirs.append(os.curdir)
def setup_shlib_compiler(self):
compiler = self.shlib_compiler = new_compiler(
compiler=self.compiler, dry_run=self.dry_run, force=self.force
)
if sys.platform == "darwin":
tmp = _config_vars.copy()
try:
# XXX Help! I don't have any idea whether these are right...
_config_vars['LDSHARED'] = "gcc -Wl,-x -dynamiclib -undefined dynamic_lookup"
_config_vars['CCSHARED'] = " -dynamiclib"
_config_vars['SO'] = ".dylib"
customize_compiler(compiler)
finally:
_config_vars.clear()
_config_vars.update(tmp)
else:
customize_compiler(compiler)
if self.include_dirs is not None:
compiler.set_include_dirs(self.include_dirs)
if self.define is not None:
# 'define' option is a list of (name,value) tuples
for (name,value) in self.define:
compiler.define_macro(name, value)
if self.undef is not None:
for macro in self.undef:
compiler.undefine_macro(macro)
if self.libraries is not None:
compiler.set_libraries(self.libraries)
if self.library_dirs is not None:
compiler.set_library_dirs(self.library_dirs)
if self.rpath is not None:
compiler.set_runtime_library_dirs(self.rpath)
if self.link_objects is not None:
compiler.set_link_objects(self.link_objects)
# hack so distutils' build_extension() builds a library instead
compiler.link_shared_object = link_shared_object.__get__(compiler)
def get_export_symbols(self, ext):
if isinstance(ext,Library):
return ext.export_symbols
return _build_ext.get_export_symbols(self,ext)
def build_extension(self, ext):
_compiler = self.compiler
try:
if isinstance(ext,Library):
self.compiler = self.shlib_compiler
_build_ext.build_extension(self,ext)
if ext._needs_stub:
self.write_stub(
self.get_finalized_command('build_py').build_lib, ext
)
finally:
self.compiler = _compiler
def links_to_dynamic(self, ext):
"""Return true if 'ext' links to a dynamic lib in the same package"""
# XXX this should check to ensure the lib is actually being built
# XXX as dynamic, and not just using a locally-found version or a
# XXX static-compiled version
libnames = dict.fromkeys([lib._full_name for lib in self.shlibs])
pkg = '.'.join(ext._full_name.split('.')[:-1]+[''])
for libname in ext.libraries:
if pkg+libname in libnames: return True
return False
def get_outputs(self):
outputs = _build_ext.get_outputs(self)
optimize = self.get_finalized_command('build_py').optimize
for ext in self.extensions:
if ext._needs_stub:
base = os.path.join(self.build_lib, *ext._full_name.split('.'))
outputs.append(base+'.py')
outputs.append(base+'.pyc')
if optimize:
outputs.append(base+'.pyo')
return outputs
def write_stub(self, output_dir, ext, compile=False):
log.info("writing stub loader for %s to %s",ext._full_name, output_dir)
stub_file = os.path.join(output_dir, *ext._full_name.split('.'))+'.py'
if compile and os.path.exists(stub_file):
raise DistutilsError(stub_file+" already exists! Please delete.")
if not self.dry_run:
f = open(stub_file,'w')
f.write('\n'.join([
"def __bootstrap__():",
" global __bootstrap__, __file__, __loader__",
" import sys, os, pkg_resources, imp"+if_dl(", dl"),
" __file__ = pkg_resources.resource_filename(__name__,%r)"
% os.path.basename(ext._file_name),
" del __bootstrap__",
" if '__loader__' in globals():",
" del __loader__",
if_dl(" old_flags = sys.getdlopenflags()"),
" old_dir = os.getcwd()",
" try:",
" os.chdir(os.path.dirname(__file__))",
if_dl(" sys.setdlopenflags(dl.RTLD_NOW)"),
" imp.load_dynamic(__name__,__file__)",
" finally:",
if_dl(" sys.setdlopenflags(old_flags)"),
" os.chdir(old_dir)",
"__bootstrap__()",
"" # terminal \n
]))
f.close()
if compile:
from distutils.util import byte_compile
byte_compile([stub_file], optimize=0,
force=True, dry_run=self.dry_run)
optimize = self.get_finalized_command('install_lib').optimize
if optimize > 0:
byte_compile([stub_file], optimize=optimize,
force=True, dry_run=self.dry_run)
if os.path.exists(stub_file) and not self.dry_run:
os.unlink(stub_file)
if use_stubs or os.name=='nt':
# Build shared libraries
#
def link_shared_object(self, objects, output_libname, output_dir=None,
libraries=None, library_dirs=None, runtime_library_dirs=None,
export_symbols=None, debug=0, extra_preargs=None,
extra_postargs=None, build_temp=None, target_lang=None
): self.link(
self.SHARED_LIBRARY, objects, output_libname,
output_dir, libraries, library_dirs, runtime_library_dirs,
export_symbols, debug, extra_preargs, extra_postargs,
build_temp, target_lang
)
else:
# Build static libraries everywhere else
libtype = 'static'
def link_shared_object(self, objects, output_libname, output_dir=None,
libraries=None, library_dirs=None, runtime_library_dirs=None,
export_symbols=None, debug=0, extra_preargs=None,
extra_postargs=None, build_temp=None, target_lang=None
):
# XXX we need to either disallow these attrs on Library instances,
# or warn/abort here if set, or something...
#libraries=None, library_dirs=None, runtime_library_dirs=None,
#export_symbols=None, extra_preargs=None, extra_postargs=None,
#build_temp=None
assert output_dir is None # distutils build_ext doesn't pass this
output_dir,filename = os.path.split(output_libname)
basename, ext = os.path.splitext(filename)
if self.library_filename("x").startswith('lib'):
# strip 'lib' prefix; this is kludgy if some platform uses
# a different prefix
basename = basename[3:]
self.create_static_lib(
objects, basename, output_dir, debug, target_lang
)
|