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gh-90005: Port _dbm module to PY_STDLIB_MOD (GH-94433)

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Christian Heimes 2022-07-01 21:48:38 +02:00 • committed by GitHub
parent 80aaeabb8b
commit ec5e253556
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6 changed files with 278 additions and 198 deletions
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72
setup.py
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@ -1163,77 +1163,7 @@ class PyBuildExt(build_ext):
self.addext(Extension('_crypt', ['_cryptmodule.c']))
def detect_dbm_gdbm(self):
# 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 dbm/__init__.py provides an
# implementation independent wrapper for these; dbm/dumb.py provides
# similar functionality (but slower of course) implemented in Python.
dbm_setup_debug = False # verbose debug prints from this script?
dbm_order = ['gdbm']
# libdb, gdbm and ndbm headers and libraries
have_ndbm_h = sysconfig.get_config_var("HAVE_NDBM_H")
have_gdbm_ndbm_h = sysconfig.get_config_var("HAVE_GDBM_NDBM_H")
have_gdbm_dash_ndbm_h = sysconfig.get_config_var("HAVE_GDBM_DASH_NDBM_H")
have_libndbm = sysconfig.get_config_var("HAVE_LIBNDBM")
have_libgdbm_compat = sysconfig.get_config_var("HAVE_LIBGDBM_COMPAT")
have_libdb = sysconfig.get_config_var("HAVE_LIBDB")
# The standard Unix dbm module:
if not CYGWIN:
config_args = [arg.strip("'")
for arg in sysconfig.get_config_var("CONFIG_ARGS").split()]
dbm_args = [arg for arg in config_args
if arg.startswith('--with-dbmliborder=')]
if dbm_args:
dbm_order = [arg.split('=')[-1] for arg in dbm_args][-1].split(":")
else:
dbm_order = "gdbm:ndbm:bdb".split(":")
dbmext = None
for cand in dbm_order:
if cand == "ndbm":
if have_ndbm_h:
# Some systems have -lndbm, others have -lgdbm_compat,
# others don't have either
if have_libndbm:
ndbm_libs = ['ndbm']
elif have_libgdbm_compat:
ndbm_libs = ['gdbm_compat']
else:
ndbm_libs = []
if dbm_setup_debug: print("building dbm using ndbm")
dbmext = Extension(
'_dbm', ['_dbmmodule.c'],
define_macros=[('USE_NDBM', None)],
libraries=ndbm_libs
)
break
elif cand == "gdbm":
# dbm_open() is provided by libgdbm_compat, which wraps libgdbm
if have_libgdbm_compat and (have_gdbm_ndbm_h or have_gdbm_dash_ndbm_h):
if dbm_setup_debug: print("building dbm using gdbm")
dbmext = Extension(
'_dbm', ['_dbmmodule.c'],
define_macros=[('USE_GDBM_COMPAT', None)],
libraries=['gdbm_compat']
)
break
elif cand == "bdb":
if have_libdb:
if dbm_setup_debug: print("building dbm using bdb")
dbmext = Extension(
'_dbm', ['_dbmmodule.c'],
define_macros=[('USE_BERKDB', None)],
libraries=['db']
)
break
if dbmext is not None:
self.add(dbmext)
else:
self.missing.append('_dbm')
self.addext(Extension('_dbm', ['_dbmmodule.c']))
# Anthony Baxter's gdbm module. GNU dbm(3) will require -lgdbm:
self.addext(Extension('_gdbm', ['_gdbmmodule.c']))