@ -364,57 +364,6 @@ def find_module_file(module, dirlist):
return os . path . abspath ( os . path . join ( dirs [ 0 ] , module ) )
def parse_cflags ( flags ) :
""" Parse a string with compiler flags (-I, -D, -U, extra)
Distutils appends extra args to the compiler arguments . Some flags like
- I must appear earlier . Otherwise the pre - processor picks up files
from system inclue directories.
"""
include_dirs = [ ]
define_macros = [ ]
undef_macros = [ ]
extra_compile_args = [ ]
if flags is not None :
# shlex.split(None) reads from stdin
for token in shlex . split ( flags ) :
switch = token [ 0 : 2 ]
value = token [ 2 : ]
if switch == ' -I ' :
include_dirs . append ( value )
elif switch == ' -D ' :
key , _ , val = value . partition ( " = " )
if not val :
val = None
define_macros . append ( ( key , val ) )
elif switch == ' -U ' :
undef_macros . append ( value )
else :
extra_compile_args . append ( token )
return include_dirs , define_macros , undef_macros , extra_compile_args
def parse_ldflags ( flags ) :
""" Parse a string with linker flags (-L, -l, extra) """
library_dirs = [ ]
libraries = [ ]
extra_link_args = [ ]
if flags is not None :
# shlex.split(None) reads from stdin
for token in shlex . split ( flags ) :
switch = token [ 0 : 2 ]
value = token [ 2 : ]
if switch == ' -L ' :
library_dirs . append ( value )
elif switch == ' -l ' :
libraries . append ( value )
else :
extra_link_args . append ( token )
return library_dirs , libraries , extra_link_args
class PyBuildExt ( build_ext ) :
def __init__ ( self , dist ) :
@ -433,6 +382,74 @@ class PyBuildExt(build_ext):
def add ( self , ext ) :
self . extensions . append ( ext )
def addext ( self , ext , * , update_flags = True ) :
""" Add extension with Makefile MODULE_{name} support
"""
if update_flags :
self . update_extension_flags ( ext )
state = sysconfig . get_config_var ( f " MODULE_{ext.name.upper()} " )
if state == " yes " :
self . extensions . append ( ext )
elif state == " disabled " :
self . disabled_configure . append ( ext . name )
elif state == " missing " :
self . missing . append ( ext . name )
elif state == " n/a " :
# not available on current platform
pass
else :
# not migrated to MODULE_{name} yet.
self . extensions . append ( ext )
def update_extension_flags ( self , ext ) :
""" Update extension flags with module CFLAGS and LDFLAGS
Reads MODULE_ { name } _CFLAGS and _LDFLAGS
Distutils appends extra args to the compiler arguments . Some flags like
- I must appear earlier , otherwise the pre - processor picks up files
from system inclue directories.
"""
upper_name = ext . name . upper ( )
# Parse compiler flags (-I, -D, -U, extra args)
cflags = sysconfig . get_config_var ( f " MODULE_{upper_name}_CFLAGS " )
if cflags :
for token in shlex . split ( cflags ) :
switch = token [ 0 : 2 ]
value = token [ 2 : ]
if switch == ' -I ' :
ext . include_dirs . append ( value )
elif switch == ' -D ' :
key , _ , val = value . partition ( " = " )
if not val :
val = None
ext . define_macros . append ( ( key , val ) )
elif switch == ' -U ' :
ext . undef_macros . append ( value )
else :
ext . extra_compile_args . append ( token )
# Parse linker flags (-L, -l, extra objects, extra args)
ldflags = sysconfig . get_config_var ( f " MODULE_{upper_name}_LDFLAGS " )
if ldflags :
for token in shlex . split ( ldflags ) :
switch = token [ 0 : 2 ]
value = token [ 2 : ]
if switch == ' -L ' :
ext . library_dirs . append ( value )
elif switch == ' -l ' :
ext . libraries . append ( value )
elif (
token [ 0 ] != ' - ' and
token . endswith ( ( ' .a ' , ' .o ' , ' .so ' , ' .sl ' , ' .dylib ' ) )
) :
ext . extra_objects . append ( token )
else :
ext . extra_link_args . append ( token )
return ext
def set_srcdir ( self ) :
self . srcdir = sysconfig . get_config_var ( ' srcdir ' )
if not self . srcdir :
@ -1527,32 +1544,11 @@ class PyBuildExt(build_ext):
#
# More information on Expat can be found at www.libexpat.org.
#
cflags = parse_cflags ( sysconfig . get_config_var ( " EXPAT_CFLAGS " ) )
include_dirs , define_macros , undef_macros , extra_compile_args = cflags
# ldflags includes either system libexpat or full path to
# our static libexpat.a.
ldflags = parse_ldflags ( sysconfig . get_config_var ( " EXPAT_LDFLAGS " ) )
library_dirs , libraries , extra_link_args = ldflags
self . add ( Extension ( ' pyexpat ' ,
include_dirs = include_dirs ,
define_macros = define_macros ,
undef_macros = undef_macros ,
extra_compile_args = extra_compile_args ,
library_dirs = library_dirs ,
libraries = libraries ,
extra_link_args = extra_link_args ,
sources = [ ' pyexpat.c ' ] ) )
self . addext ( Extension ( ' pyexpat ' , sources = [ ' pyexpat.c ' ] ) )
# Fredrik Lundh's cElementTree module. Note that this also
# uses expat (via the CAPI hook in pyexpat).
self . add ( Extension ( ' _elementtree ' ,
include_dirs = include_dirs ,
define_macros = define_macros ,
undef_macros = undef_macros ,
extra_compile_args = extra_compile_args ,
# no EXPAT_LDFLAGS
sources = [ ' _elementtree.c ' ] ) )
self . addext ( Extension ( ' _elementtree ' , sources = [ ' _elementtree.c ' ] ) )
def detect_multibytecodecs ( self ) :
# Hye-Shik Chang's CJKCodecs modules.
@ -2046,26 +2042,14 @@ class PyBuildExt(build_ext):
def detect_decimal ( self ) :
# Stefan Krah's _decimal module
sources = [ ' _decimal/_decimal.c ' ]
cflags = parse_cflags ( sysconfig . get_config_var ( " DECIMAL_CFLAGS " ) )
include_dirs , define_macros , undef_macros , extra_compile_args = cflags
# ldflags includes either system libmpdec or full path to
# our static libmpdec.a.
ldflags = parse_ldflags ( sysconfig . get_config_var ( " DECIMAL_LDFLAGS " ) )
library_dirs , libraries , extra_link_args = ldflags
# Uncomment for extra functionality:
#define_macros.append(('EXTRA_FUNCTIONALITY', 1))
self . add ( Extension ( ' _decimal ' ,
include_dirs = include_dirs ,
define_macros = define_macros ,
undef_macros = undef_macros ,
extra_compile_args = extra_compile_args ,
library_dirs = library_dirs ,
libraries = libraries ,
extra_link_args = extra_link_args ,
sources = sources ) )
self . addext (
Extension (
' _decimal ' ,
[ ' _decimal/_decimal.c ' ] ,
# Uncomment for extra functionality:
# define_macros=[('EXTRA_FUNCTIONALITY', 1)]
)
)
def detect_openssl_hashlib ( self ) :
# Detect SSL support for the socket module (via _ssl)
Christian Heimes
4 years ago
GitHub