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cpython/setup.py
Andrew M. Kuchling fbe73769a4 Sizable reorganization of how header and library files are found 
Check additional include directories for SSL
Don't build modules that are linked into the Python binary statically
Factored out the detection of Tkinter out into a method, since it's
    the most complicated module to set up
Simplify the logic for detecting Tkinter
2001-01-18 18:44:20 +00:00

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# To be fixed:
# Implement --disable-modules setting
import sys, os, string, getopt
from distutils import sysconfig
from distutils.core import Extension, setup
from distutils.command.build_ext import build_ext
# This global variable is used to hold the list of modules to be disabled.
disabled_module_list = []
def find_file(filename, std_dirs, paths):
"""Searches for the directory where a given file is located,
and returns a possibly-empty list of additional directories, or None
if the file couldn't be found at all.
'filename' is the name of a file, such as readline.h or libcrypto.a.
'std_dirs' is the list of standard system directories; if the
file is found in one of them, no additional directives are needed.
'paths' is a list of additional locations to check; if the file is
found in one of them, the resulting list will contain the directory.
"""
# Check the standard locations
for dir in std_dirs:
f = os.path.join(dir, filename)
if os.path.exists(f): return []
# Check the additional directories
for dir in paths:
f = os.path.join(dir, filename)
if os.path.exists(f):
return [dir]
# Not found anywhere
return None
def find_library_file(compiler, libname, std_dirs, paths):
filename = compiler.library_filename(libname, lib_type='shared')
result = find_file(filename, std_dirs, paths)
if result is not None: return result
filename = compiler.library_filename(libname, lib_type='static')
result = find_file(filename, std_dirs, paths)
return result
def module_enabled(extlist, modname):
"""Returns whether the module 'modname' is present in the list
of extensions 'extlist'."""
extlist = [ext for ext in extlist if ext.name == modname]
return len(extlist)
class PyBuildExt(build_ext):
def build_extensions(self):
from distutils.ccompiler import new_compiler
from distutils.sysconfig import customize_compiler
# 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')
#
moddir = os.path.join(os.getcwd(), 'Modules', srcdir)
moddir = os.path.normpath(moddir)
srcdir, tail = os.path.split(moddir)
srcdir = os.path.normpath(srcdir)
moddir = os.path.normpath(moddir)
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
# Try importing a module; if it's already been built statically,
# don't build it here
try:
__import__(ext.name)
except ImportError:
pass # Not built, so this is what we expect
else:
self.extensions.remove(ext)
build_ext.build_extensions(self)
def detect_modules(self):
# Ensure that /usr/local is always used
if '/usr/local/lib' not in self.compiler.library_dirs:
self.compiler.library_dirs.append('/usr/local/lib')
if '/usr/local/include' not in self.compiler.include_dirs:
self.compiler.include_dirs.append( '/usr/local/include' )
# lib_dirs and inc_dirs are used to search for files;
# if a file is found in one of those directories, it can
# be assumed that no additional -I,-L directives are needed.
lib_dirs = self.compiler.library_dirs + ['/lib', '/usr/lib']
inc_dirs = ['/usr/include'] + self.compiler.include_dirs
exts = []
# XXX Omitted modules: gl, pure, dl, SGI-specific modules
#
# The following modules are all pretty straightforward, and compile
# on pretty much any POSIXish platform.
#
# Some modules that are normally always on:
exts.append( Extension('regex', ['regexmodule.c', 'regexpr.c']) )
exts.append( Extension('pcre', ['pcremodule.c', 'pypcre.c']) )
exts.append( Extension('xreadlines', ['xreadlinesmodule.c']) )
# array objects
exts.append( Extension('array', ['arraymodule.c']) )
# complex math library functions
exts.append( Extension('cmath', ['cmathmodule.c'], libraries=['m']) )
# math library functions, e.g. sin()
exts.append( Extension('math', ['mathmodule.c'], libraries=['m']) )
# fast string operations implemented in C
exts.append( Extension('strop', ['stropmodule.c']) )
# time operations and variables
exts.append( Extension('time', ['timemodule.c'], libraries=['m']) )
# operator.add() and similar goodies
exts.append( Extension('operator', ['operator.c']) )
# access to the builtin codecs and codec registry
exts.append( Extension('_codecs', ['_codecsmodule.c']) )
# static Unicode character database
exts.append( Extension('unicodedata', ['unicodedata.c', 'unicodedatabase.c']) )
# Unicode Character Name expansion hash table
exts.append( Extension('ucnhash', ['ucnhash.c']) )
# access to ISO C locale support
exts.append( Extension('_locale', ['_localemodule.c']) )
# Modules with some UNIX dependencies -- on by default:
# (If you have a really backward UNIX, select and socket may not be
# supported...)
# fcntl(2) and ioctl(2)
exts.append( Extension('fcntl', ['fcntlmodule.c']) )
# pwd(3)
exts.append( Extension('pwd', ['pwdmodule.c']) )
# grp(3)
exts.append( Extension('grp', ['grpmodule.c']) )
# posix (UNIX) errno values
exts.append( Extension('errno', ['errnomodule.c']) )
# select(2); not on ancient System V
exts.append( Extension('select', ['selectmodule.c']) )
# The md5 module implements the RSA Data Security, Inc. MD5
# Message-Digest Algorithm, described in RFC 1321. The necessary files
# md5c.c and md5.h are included here.
exts.append( Extension('md5', ['md5module.c', 'md5c.c']) )
# The sha module implements the SHA checksum algorithm.
# (NIST's Secure Hash Algorithm.)
exts.append( Extension('sha', ['shamodule.c']) )
# Tommy Burnette's 'new' module (creates new empty objects of certain kinds):
exts.append( Extension('new', ['newmodule.c']) )
# Helper module for various ascii-encoders
exts.append( Extension('binascii', ['binascii.c']) )
# Fred Drake's interface to the Python parser
exts.append( Extension('parser', ['parsermodule.c']) )
# Digital Creations' cStringIO and cPickle
exts.append( Extension('cStringIO', ['cStringIO.c']) )
exts.append( Extension('cPickle', ['cPickle.c']) )
# Memory-mapped files (also works on Win32).
exts.append( Extension('mmap', ['mmapmodule.c']) )
# Lance Ellinghaus's modules:
# enigma-inspired encryption
exts.append( Extension('rotor', ['rotormodule.c']) )
# syslog daemon interface
exts.append( Extension('syslog', ['syslogmodule.c']) )
# George Neville-Neil's timing module:
exts.append( Extension('timing', ['timingmodule.c']) )
#
# Here ends the simple stuff. From here on, modules need certain libraries,
# are platform-specific, or present other surprises.
#
# Multimedia modules
# These don't work for 64-bit platforms!!!
# These represent audio samples or images as strings:
# Disabled on 64-bit platforms
if sys.maxint != 9223372036854775807L:
# Operations on audio samples
exts.append( Extension('audioop', ['audioop.c']) )
# Operations on images
exts.append( Extension('imageop', ['imageop.c']) )
# Read SGI RGB image files (but coded portably)
exts.append( Extension('rgbimg', ['rgbimgmodule.c']) )
# readline
if (self.compiler.find_library_file(lib_dirs, 'readline')):
exts.append( Extension('readline', ['readline.c'],
libraries=['readline', 'termcap']) )
# The crypt module is now disabled by default because it breaks builds
# on many systems (where -lcrypt is needed), e.g. Linux (I believe).
if self.compiler.find_library_file(lib_dirs, 'crypt'):
libs = ['crypt']
else:
libs = []
exts.append( Extension('crypt', ['cryptmodule.c'], libraries=libs) )
# socket(2)
# Detect SSL support for the socket module
ssl_incs = find_file('openssl/ssl.h', inc_dirs,
['/usr/local/ssl/include']
)
ssl_libs = find_library_file(self.compiler, 'ssl',lib_dirs,
['/usr/local/ssl/lib'] )
if (ssl_incs is not None and
ssl_libs is not None):
exts.append( Extension('_socket', ['socketmodule.c'],
include_dirs = ssl_incs,
library_dirs = ssl_libs,
libraries = ['ssl', 'crypto'],
define_macros = [('USE_SSL',1)] ) )
else:
exts.append( Extension('_socket', ['socketmodule.c']) )
# Modules that provide persistent dictionary-like semantics. You will
# probably want to arrange for at least one of them to be available on
# your machine, though none are defined by default because of library
# dependencies. The Python module anydbm.py provides an
# implementation independent wrapper for these; dumbdbm.py provides
# similar functionality (but slower of course) implemented in Python.
# The standard Unix dbm module:
if (self.compiler.find_library_file(lib_dirs, 'ndbm')):
exts.append( Extension('dbm', ['dbmmodule.c'],
libraries = ['ndbm'] ) )
else:
exts.append( Extension('dbm', ['dbmmodule.c']) )
# Anthony Baxter's gdbm module. GNU dbm(3) will require -lgdbm:
if (self.compiler.find_library_file(lib_dirs, 'gdbm')):
exts.append( Extension('gdbm', ['gdbmmodule.c'],
libraries = ['gdbm'] ) )
# Berkeley DB interface.
#
# This requires the Berkeley DB code, see
# ftp://ftp.cs.berkeley.edu/pub/4bsd/db.1.85.tar.gz
#
# Edit the variables DB and DBPORT to point to the db top directory
# and the subdirectory of PORT where you built it.
#
# (See http://electricrain.com/greg/python/bsddb3/ for an interface to
# BSD DB 3.x.)
# Note: If a db.h file is found by configure, bsddb will be enabled
# automatically via Setup.config.in. It only needs to be enabled here
# if it is not automatically enabled there; check the generated
# Setup.config before enabling it here.
db_incs = find_file('db_185.h', inc_dirs, [])
if (db_incs is not None and
self.compiler.find_library_file(lib_dirs, 'db') ):
exts.append( Extension('bsddb', ['bsddbmodule.c'],
include_dirs = db_incs,
libraries = ['db'] ) )
# The mpz module interfaces to the GNU Multiple Precision library.
# You need to ftp the GNU MP library.
# This was originally written and tested against GMP 1.2 and 1.3.2.
# It has been modified by Rob Hooft to work with 2.0.2 as well, but I
# haven't tested it recently. For a more complete module,
# refer to pympz.sourceforge.net.
# A compatible MP library unencombered by the GPL also exists. It was
# posted to comp.sources.misc in volume 40 and is widely available from
# FTP archive sites. One URL for it is:
# ftp://gatekeeper.dec.com/.b/usenet/comp.sources.misc/volume40/fgmp/part01.Z
# Anthony Baxter's gdbm module. GNU dbm(3) will require -lgdbm:
if (self.compiler.find_library_file(lib_dirs, 'gmp')):
exts.append( Extension('mpz', ['mpzmodule.c'],
libraries = ['gmp'] ) )
# Unix-only modules
if sys.platform not in ['mac', 'win32']:
# Steen Lumholt's termios module
exts.append( Extension('termios', ['termios.c']) )
# Jeremy Hylton's rlimit interface
exts.append( Extension('resource', ['resource.c']) )
if (self.compiler.find_library_file(lib_dirs, 'nsl')):
exts.append( Extension('nis', ['nismodule.c'],
libraries = ['nsl']) )
# Curses support, requring the System V version of curses, often
# provided by the ncurses library.
if sys.platform == 'sunos4':
include_dirs += ['/usr/5include']
lib_dirs += ['/usr/5lib']
if (self.compiler.find_library_file(lib_dirs, 'ncurses')):
curses_libs = ['ncurses']
exts.append( Extension('_curses', ['_cursesmodule.c'],
libraries = curses_libs) )
elif (self.compiler.find_library_file(lib_dirs, 'curses')):
if (self.compiler.find_library_file(lib_dirs, 'terminfo')):
curses_libs = ['curses', 'terminfo']
else:
curses_libs = ['curses', 'termcap']
exts.append( Extension('_curses', ['_cursesmodule.c'],
libraries = curses_libs) )
# If the curses module is enabled, check for the panel module
if (os.path.exists('Modules/_curses_panel.c') and
module_enabled(exts, '_curses') and
self.compiler.find_library_file(lib_dirs, 'panel')):
exts.append( Extension('_curses_panel', ['_curses_panel.c'],
libraries = ['panel'] + curses_libs) )
# Lee Busby's SIGFPE modules.
# The library to link fpectl with is platform specific.
# Choose *one* of the options below for fpectl:
if sys.platform == 'irix5':
# For SGI IRIX (tested on 5.3):
exts.append( Extension('fpectl', ['fpectlmodule.c'],
libraries=['fpe']) )
elif 0: # XXX how to detect SunPro?
# For Solaris with SunPro compiler (tested on Solaris 2.5 with SunPro C 4.2):
# (Without the compiler you don't have -lsunmath.)
#fpectl fpectlmodule.c -R/opt/SUNWspro/lib -lsunmath -lm
pass
else:
# For other systems: see instructions in fpectlmodule.c.
#fpectl fpectlmodule.c ...
exts.append( Extension('fpectl', ['fpectlmodule.c']) )
# Andrew Kuchling's zlib module.
# This require zlib 1.1.3 (or later).
# See http://www.cdrom.com/pub/infozip/zlib/
if (self.compiler.find_library_file(lib_dirs, 'z')):
exts.append( Extension('zlib', ['zlibmodule.c'],
libraries = ['z']) )
# Interface to the Expat XML parser
#
# Expat is written by James Clark and must be downloaded separately
# (see below). The pyexpat module was written by Paul Prescod after a
# prototype by Jack Jansen.
#
# The Expat dist includes Windows .lib and .dll files. Home page is at
# http://www.jclark.com/xml/expat.html, the current production release is
# always ftp://ftp.jclark.com/pub/xml/expat.zip.
#
# EXPAT_DIR, below, should point to the expat/ directory created by
# unpacking the Expat source distribution.
#
# Note: the expat build process doesn't yet build a libexpat.a; you can
# do this manually while we try convince the author to add it. To do so,
# cd to EXPAT_DIR, run "make" if you have not done so, then run:
#
# ar cr libexpat.a xmltok/*.o xmlparse/*.o
#
expat_defs = []
expat_incs = find_file('expat.h', inc_dirs, [])
if expat_incs is not None:
# expat.h was found
expat_defs = [('HAVE_EXPAT_H', 1)]
else:
expat_incs = find_file('xmlparse.h', inc_dirs, [])
if (expat_incs and
self.compiler.find_library_file(lib_dirs, 'expat')):
exts.append( Extension('pyexpat', ['pyexpat.c'],
define_macros = expat_defs,
libraries = ['expat']) )
# Platform-specific libraries
plat = sys.platform
if plat == 'linux2':
# Linux-specific modules
exts.append( Extension('linuxaudiodev', ['linuxaudiodev.c']) )
if plat == 'sunos5':
# SunOS specific modules
exts.append( Extension('sunaudiodev', ['sunaudiodev.c']) )
self.extensions.extend(exts)
# Call the method for detecting whether _tkinter can be compiled
self.detect_tkinter(inc_dirs, lib_dirs)
def detect_tkinter(self, inc_dirs, lib_dirs):
# The _tkinter module.
#
# The command for _tkinter is long and site specific. Please
# uncomment and/or edit those parts as indicated. If you don't have a
# specific extension (e.g. Tix or BLT), leave the corresponding line
# commented out. (Leave the trailing backslashes in! If you
# experience strange errors, you may want to join all uncommented
# lines and remove the backslashes -- the backslash interpretation is
# done by the shell's "read" command and it may not be implemented on
# every system.
# Assume we haven't found any of the libraries or include files
tcllib = tklib = tcl_includes = tk_includes = None
for version in ['8.4', '8.3', '8.2', '8.1', '8.0']:
tklib = self.compiler.find_library_file(lib_dirs,
'tk' + version )
tcllib = self.compiler.find_library_file(lib_dirs,
'tcl' + version )
if tklib and tcllib:
# Exit the loop when we've found the Tcl/Tk libraries
break
# Now check for the header files
if tklib and tcllib:
# Check for the include files on Debian, where
# they're put in /usr/include/{tcl,tk}X.Y
debian_tcl_include = ( '/usr/include/tcl' + version )
debian_tk_include = ( '/usr/include/tk' + version )
tcl_includes = find_file('tcl.h', inc_dirs,
[debian_tcl_include]
)
tk_includes = find_file('tk.h', inc_dirs,
[debian_tk_include]
)
if (tcllib is None or tklib is None and
tcl_includes is None or tk_includes is None):
# Something's missing, so give up
return
# OK... everything seems to be present for Tcl/Tk.
include_dirs = [] ; libs = [] ; defs = [] ; added_lib_dirs = []
for dir in tcl_includes + tk_includes:
if dir not in include_dirs:
include_dirs.append(dir)
# Check for various platform-specific directories
if sys.platform == 'sunos5':
include_dirs.append('/usr/openwin/include')
added_lib_dirs.append('/usr/openwin/lib')
elif os.path.exists('/usr/X11R6/include'):
include_dirs.append('/usr/X11R6/include')
added_lib_dirs.append('/usr/X11R6/lib')
elif os.path.exists('/usr/X11R5/include'):
include_dirs.append('/usr/X11R5/include')
added_lib_dirs.append('/usr/X11R5/lib')
else:
# Assume default location for X11
include_dirs.append('/usr/X11/include')
added_lib_dirs.append('/usr/X11/lib')
# Check for Tix extension
if self.compiler.find_library_file(lib_dirs + added_lib_dirs, 'tix4.1.8.0'):
defs.append( ('WITH_TIX', 1) )
libs.append('tix4.1.8.0')
# Check for BLT extension
if self.compiler.find_library_file(lib_dirs + added_lib_dirs, 'BLT8.0'):
defs.append( ('WITH_BLT', 1) )
libs.append('BLT8.0')
# Add the Tcl/Tk libraries
libs.append('tk'+version)
libs.append('tcl'+version)
if sys.platform in ['aix3', 'aix4']:
libs.append('ld')
# Finally, link with the X11 libraries
libs.append('X11')
ext = Extension('_tkinter', ['_tkinter.c', 'tkappinit.c'],
define_macros=[('WITH_APPINIT', 1)] + defs,
include_dirs = include_dirs,
libraries = libs,
library_dirs = added_lib_dirs,
)
self.extensions.append(ext)
# XXX handle these, but how to detect?
# *** Uncomment and edit for PIL (TkImaging) extension only:
# -DWITH_PIL -I../Extensions/Imaging/libImaging tkImaging.c \
# *** Uncomment and edit for TOGL extension only:
# -DWITH_TOGL togl.c \
# *** Uncomment these for TOGL extension only:
# -lGL -lGLU -lXext -lXmu \
def main():
setup(name = 'Python standard library',
version = '%d.%d' % sys.version_info[:2],
cmdclass = {'build_ext':PyBuildExt},
# The struct module is defined here, because build_ext won't be
# called unless there's at least one extension module defined.
ext_modules=[Extension('struct', ['structmodule.c'])]
)
# --install-platlib
if __name__ == '__main__':
sysconfig.set_python_build()
main()
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