def build_extensions(self):
# Detect which modules should be compiled
self.detect_modules()
# Remove modules that are present on the disabled list
self.extensions = [
ext for ext in self.extensions
if ext.name not in disabled_module_list
]
# Fix up the autodetected modules, prefixing all the source files
# with Modules/ and adding Python's include directory to the path.
(srcdir, ) = sysconfig.get_config_vars('srcdir')
# Figure out the location of the source code for extension modules
moddir = os.path.join(os.getcwd(), srcdir, 'Modules')
moddir = os.path.normpath(moddir)
srcdir, tail = os.path.split(moddir)
srcdir = os.path.normpath(srcdir)
moddir = os.path.normpath(moddir)
# Fix up the paths for scripts, too
self.distribution.scripts = [
os.path.join(srcdir, filename)
for filename in self.distribution.scripts
]
for ext in self.extensions[:]:
ext.sources = [
os.path.join(moddir, filename) for filename in ext.sources
]
ext.include_dirs.append('.') # to get config.h
ext.include_dirs.append(os.path.join(srcdir, './Include'))
# If a module has already been built statically,
# don't build it here
if ext.name in sys.builtin_module_names:
self.extensions.remove(ext)
# Parse Modules/Setup to figure out which modules are turned
# on in the file.
input = text_file.TextFile('Modules/Setup', join_lines=1)
remove_modules = []
while 1:
line = input.readline()
if not line: break
line = line.split()
remove_modules.append(line[0])
input.close()
for ext in self.extensions[:]:
if ext.name in remove_modules:
self.extensions.remove(ext)
# When you run "make CC=altcc" or something similar, you really want
# those environment variables passed into the setup.py phase. Here's
# a small set of useful ones.
compiler = os.environ.get('CC')
linker_so = os.environ.get('LDSHARED')
args = {}
# unfortunately, distutils doesn't let us provide separate C and C++
# compilers
if compiler is not None:
args['compiler_so'] = compiler
if linker_so is not None:
args['linker_so'] = linker_so + ' -shared'
self.compiler.set_executables(**args)
build_ext.build_extensions(self)
# Autodetecting setup.py script for building the Python extensions
def build_extensions(self):
# Detect which modules should be compiled
old_so = self.compiler.shared_lib_extension
# Workaround PEP 3149 stuff
self.compiler.shared_lib_extension = os.environ.get("SO", ".so")
try:
missing = self.detect_modules()
finally:
self.compiler.shared_lib_extension = old_so
# Remove modules that are present on the disabled list
extensions = [
ext for ext in self.extensions
if ext.name not in disabled_module_list
]
# move ctypes to the end, it depends on other modules
ext_map = dict((ext.name, i) for i, ext in enumerate(extensions))
if "_ctypes" in ext_map:
ctypes = extensions.pop(ext_map["_ctypes"])
extensions.append(ctypes)
self.extensions = extensions
# Fix up the autodetected modules, prefixing all the source files
# with Modules/.
srcdir = sysconfig.get_config_var('srcdir')
if not srcdir:
# Maybe running on Windows but not using CYGWIN?
raise ValueError("No source directory; cannot proceed.")
srcdir = os.path.abspath(srcdir)
moddirlist = [os.path.join(srcdir, 'Modules')]
# Fix up the paths for scripts, too
self.distribution.scripts = [
os.path.join(srcdir, filename)
for filename in self.distribution.scripts
]
# Python header files
headers = [sysconfig.get_config_h_filename()]
headers += glob(os.path.join(sysconfig.get_path('include'), "*.h"))
for ext in self.extensions[:]:
ext.sources = [
find_module_file(filename, moddirlist)
for filename in ext.sources
]
if ext.depends is not None:
ext.depends = [
find_module_file(filename, moddirlist)
for filename in ext.depends
]
else:
ext.depends = []
# re-compile extensions if a header file has been changed
ext.depends.extend(headers)
# If a module has already been built statically,
# don't build it here
if ext.name in sys.builtin_module_names:
self.extensions.remove(ext)
# Parse Modules/Setup to figure out which
# modules are turned on in the file.
remove_modules = []
for filename in ('Modules/Setup', ):
input = text_file.TextFile(filename, join_lines=1)
while 1:
line = input.readline()
if not line: break
line = line.split()
remove_modules.append(line[0])
input.close()
for ext in self.extensions[:]:
if ext.name in remove_modules:
self.extensions.remove(ext)
# When you run "make CC=altcc" or something similar, you really want
# those environment variables passed into the setup.py phase. Here's
# a small set of useful ones.
compiler = os.environ.get('CC')
args = {}
# unfortunately, distutils doesn't let us provide separate C and C++
# compilers
if compiler is not None:
(ccshared, cppflags, cflags) = \
sysconfig.get_config_vars('CCSHARED', 'CPPFLAGS', 'CFLAGS')
cppflags = ' '.join(
[f for f in cppflags.split() if not f.startswith('-I')])
args[
'compiler_so'] = compiler + ' ' + ccshared + ' ' + cppflags + ' ' + cflags
self.compiler.set_executables(**args)
build_ext.build_extensions(self)
longest = max([len(e.name) for e in self.extensions])
if self.failed:
longest = max(longest, max([len(name) for name in self.failed]))
def print_three_column(lst):
lst.sort(key=str.lower)
# guarantee zip() doesn't drop anything
while len(lst) % 3:
lst.append("")
for e, f, g in zip(lst[::3], lst[1::3], lst[2::3]):
print("%-*s %-*s %-*s" %
(longest, e, longest, f, longest, g))
if missing:
print()
print("Python build finished, but the necessary bits to build "
"these modules were not found:")
print_three_column(missing)
print("To find the necessary bits, look in setup.py in"
" detect_modules() for the module's name.")
print()
if self.failed:
failed = self.failed[:]
print()
print("Failed to build these modules:")
print_three_column(failed)
print()
