def SAMBA_CHECK_UNDEFINED_SYMBOL_FLAGS(conf):
# we don't want any libraries or modules to rely on runtime
# resolution of symbols
if not sys.platform.startswith("openbsd"):
conf.env.undefined_ldflags = conf.ADD_LDFLAGS('-Wl,-no-undefined', testflags=True)
if not sys.platform.startswith("openbsd") and conf.env.undefined_ignore_ldflags == []:
if conf.CHECK_LDFLAGS(['-undefined', 'dynamic_lookup']):
conf.env.undefined_ignore_ldflags = ['-undefined', 'dynamic_lookup']
def SAMBA_CONFIG_H(conf, path=None):
'''write out config.h in the right directory'''
# we don't want to produce a config.h in places like lib/replace
# when we are building projects that depend on lib/replace
if not IN_LAUNCH_DIR(conf):
return
# we need to build real code that can't be optimized away to test
if conf.check(fragment='''
#include <stdio.h>
int main(void)
{
char t[100000];
while (fgets(t, sizeof(t), stdin));
return 0;
}
''',
execute=0,
ccflags='-fstack-protector',
ldflags='-fstack-protector',
mandatory=False,
msg='Checking if toolchain accepts -fstack-protector'):
conf.ADD_CFLAGS('-fstack-protector')
conf.ADD_LDFLAGS('-fstack-protector')
if Options.options.debug:
conf.ADD_CFLAGS('-g', testflags=True)
if Options.options.developer:
conf.env.DEVELOPER_MODE = True
conf.ADD_CFLAGS('-g', testflags=True)
conf.ADD_CFLAGS('-Wall', testflags=True)
conf.ADD_CFLAGS('-Wshadow', testflags=True)
conf.ADD_CFLAGS('-Wmissing-prototypes', testflags=True)
conf.ADD_CFLAGS('-Wcast-align -Wcast-qual', testflags=True)
conf.ADD_CFLAGS('-fno-common', testflags=True)
conf.ADD_CFLAGS('-Werror=address', testflags=True)
# we add these here to ensure that -Wstrict-prototypes is not set during configure
conf.ADD_CFLAGS('-Werror=strict-prototypes -Wstrict-prototypes',
testflags=True)
conf.ADD_CFLAGS('-Werror=write-strings -Wwrite-strings',
testflags=True)
conf.ADD_CFLAGS('-Werror-implicit-function-declaration',
testflags=True)
conf.ADD_CFLAGS('-Werror=pointer-arith -Wpointer-arith',
testflags=True)
conf.ADD_CFLAGS(
'-Werror=declaration-after-statement -Wdeclaration-after-statement',
testflags=True)
conf.ADD_CFLAGS('-Werror=return-type -Wreturn-type', testflags=True)
conf.ADD_CFLAGS('-Werror=uninitialized -Wuninitialized',
testflags=True)
conf.ADD_CFLAGS('-Wformat=2 -Wno-format-y2k', testflags=True)
conf.ADD_CFLAGS('-Werror=format-security -Wformat-security',
testflags=True)
# This check is because for ldb_search(), a NULL format string
# is not an error, but some compilers complain about that.
if CHECK_CFLAGS(
conf, ["-Werror=format", "-Wformat=2"], '''
int testformat(char *format, ...) __attribute__ ((format (__printf__, 1, 2)));
int main(void) {
testformat(0);
return 0;
}
'''):
if not 'EXTRA_CFLAGS' in conf.env:
conf.env['EXTRA_CFLAGS'] = []
conf.env['EXTRA_CFLAGS'].extend(TO_LIST("-Werror=format"))
if Options.options.picky_developer:
conf.ADD_NAMED_CFLAGS('PICKY_CFLAGS',
'-Werror -Wno-error=deprecated-declarations',
testflags=True)
conf.ADD_NAMED_CFLAGS('PICKY_CFLAGS',
'-Wno-error=tautological-compare',
testflags=True)
if Options.options.fatal_errors:
conf.ADD_CFLAGS('-Wfatal-errors', testflags=True)
if Options.options.pedantic:
conf.ADD_CFLAGS('-W', testflags=True)
if Options.options.address_sanitizer:
conf.ADD_CFLAGS('-fno-omit-frame-pointer -O1 -fsanitize=address',
testflags=True)
conf.ADD_LDFLAGS('-fsanitize=address', testflags=True)
conf.env['ADDRESS_SANITIZER'] = True
# Let people pass an additional ADDITIONAL_{CFLAGS,LDFLAGS}
# environment variables which are only used the for final build.
#
# The CFLAGS and LDFLAGS environment variables are also
# used for the configure checks which might impact their results.
conf.add_os_flags('ADDITIONAL_CFLAGS')
if conf.env.ADDITIONAL_CFLAGS and conf.CHECK_CFLAGS(
conf.env['ADDITIONAL_CFLAGS']):
conf.env['EXTRA_CFLAGS'].extend(conf.env['ADDITIONAL_CFLAGS'])
conf.add_os_flags('ADDITIONAL_LDFLAGS')
if conf.env.ADDITIONAL_LDFLAGS and conf.CHECK_LDFLAGS(
conf.env['ADDITIONAL_LDFLAGS']):
conf.env['EXTRA_LDFLAGS'].extend(conf.env['ADDITIONAL_LDFLAGS'])
if path is None:
conf.write_config_header('config.h', top=True)
else:
conf.write_config_header(path)
conf.SAMBA_CROSS_CHECK_COMPLETE()
def SAMBA_CONFIG_H(conf, path=None):
'''write out config.h in the right directory'''
# we don't want to produce a config.h in places like lib/replace
# when we are building projects that depend on lib/replace
if not IN_LAUNCH_DIR(conf):
return
if conf.CHECK_CFLAGS(['-fstack-protector']) and conf.CHECK_LDFLAGS(
['-fstack-protector']):
conf.ADD_CFLAGS('-fstack-protector')
conf.ADD_LDFLAGS('-fstack-protector')
if Options.options.debug:
conf.ADD_CFLAGS('-g', testflags=True)
if Options.options.developer:
conf.env.DEVELOPER_MODE = True
conf.ADD_CFLAGS('-g', testflags=True)
conf.ADD_CFLAGS('-Wall', testflags=True)
conf.ADD_CFLAGS('-Wshadow', testflags=True)
conf.ADD_CFLAGS('-Wmissing-prototypes', testflags=True)
conf.ADD_CFLAGS('-Wcast-align -Wcast-qual', testflags=True)
conf.ADD_CFLAGS('-fno-common', testflags=True)
conf.ADD_CFLAGS('-Werror=address', testflags=True)
# we add these here to ensure that -Wstrict-prototypes is not set during configure
conf.ADD_CFLAGS('-Werror=strict-prototypes -Wstrict-prototypes',
testflags=True)
conf.ADD_CFLAGS('-Werror=write-strings -Wwrite-strings',
testflags=True)
conf.ADD_CFLAGS('-Werror-implicit-function-declaration',
testflags=True)
conf.ADD_CFLAGS('-Werror=pointer-arith -Wpointer-arith',
testflags=True)
conf.ADD_CFLAGS(
'-Werror=declaration-after-statement -Wdeclaration-after-statement',
testflags=True)
conf.ADD_CFLAGS('-Werror=return-type -Wreturn-type', testflags=True)
conf.ADD_CFLAGS('-Wformat=2 -Wno-format-y2k', testflags=True)
# This check is because for ldb_search(), a NULL format string
# is not an error, but some compilers complain about that.
if CHECK_CFLAGS(
conf, ["-Werror=format", "-Wformat=2"], '''
int testformat(char *format, ...) __attribute__ ((format (__printf__, 1, 2)));
int main(void) {
testformat(0);
return 0;
}
'''):
if not 'EXTRA_CFLAGS' in conf.env:
conf.env['EXTRA_CFLAGS'] = []
conf.env['EXTRA_CFLAGS'].extend(TO_LIST("-Werror=format"))
if Options.options.picky_developer:
conf.ADD_NAMED_CFLAGS('PICKY_CFLAGS', '-Werror', testflags=True)
if Options.options.fatal_errors:
conf.ADD_CFLAGS('-Wfatal-errors', testflags=True)
if Options.options.pedantic:
conf.ADD_CFLAGS('-W', testflags=True)
# Let people pass an additional ADDITIONAL_{CFLAGS,LDFLAGS}
# environment variables which are only used the for final build.
#
# The CFLAGS and LDFLAGS environment variables are also
# used for the configure checks which might impact their results.
conf.add_os_flags('ADDITIONAL_CFLAGS')
if conf.env.ADDITIONAL_CFLAGS and conf.CHECK_CFLAGS(
conf.env['ADDITIONAL_CFLAGS']):
conf.env['EXTRA_CFLAGS'].extend(conf.env['ADDITIONAL_CFLAGS'])
conf.add_os_flags('ADDITIONAL_LDFLAGS')
if conf.env.ADDITIONAL_LDFLAGS and conf.CHECK_LDFLAGS(
conf.env['ADDITIONAL_LDFLAGS']):
conf.env['EXTRA_LDFLAGS'].extend(conf.env['ADDITIONAL_LDFLAGS'])
if path is None:
conf.write_config_header('config.h', top=True)
else:
conf.write_config_header(path)
conf.SAMBA_CROSS_CHECK_COMPLETE()
def check_python_headers(conf, mandatory=True):
"""Check for headers and libraries necessary to extend or embed python.
On success the environment variables xxx_PYEXT and xxx_PYEMBED are added for uselib
PYEXT: for compiling python extensions
PYEMBED: for embedding a python interpreter"""
if not conf.env['CC_NAME'] and not conf.env['CXX_NAME']:
conf.fatal('load a compiler first (gcc, g++, ..)')
if not conf.env['PYTHON_VERSION']:
conf.check_python_version()
env = conf.env
python = env['PYTHON']
if not python:
conf.fatal('could not find the python executable')
# # On Mac OSX we need to use mac bundles for python plugins
if Options.platform == 'darwin':
conf.check_tool('osx')
try:
# Get some python configuration variables using distutils
v = 'prefix SO SYSLIBS LDFLAGS SHLIBS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET'.split(
)
(python_prefix, python_SO, python_SYSLIBS, python_LDFLAGS, python_SHLIBS,
python_LIBDIR, python_LIBPL, INCLUDEPY, Py_ENABLE_SHARED,
python_MACOSX_DEPLOYMENT_TARGET) = \
_get_python_variables(python, ["get_config_var('%s') or ''" % x for x in v],
['from distutils.sysconfig import get_config_var'])
except RuntimeError:
conf.fatal("Python development headers not found (-v for details).")
conf.log.write("""Configuration returned from %r:
python_prefix = %r
python_SO = %r
python_SYSLIBS = %r
python_LDFLAGS = %r
python_SHLIBS = %r
python_LIBDIR = %r
python_LIBPL = %r
INCLUDEPY = %r
Py_ENABLE_SHARED = %r
MACOSX_DEPLOYMENT_TARGET = %r
""" % (python, python_prefix, python_SO, python_SYSLIBS, python_LDFLAGS,
python_SHLIBS, python_LIBDIR, python_LIBPL, INCLUDEPY, Py_ENABLE_SHARED,
python_MACOSX_DEPLOYMENT_TARGET))
# Allow some python overrides from env vars for cross-compiling
os_env = dict(os.environ)
override_python_LDFLAGS = os_env.get('python_LDFLAGS', None)
if override_python_LDFLAGS is not None:
conf.log.write("python_LDFLAGS override from environment = %r\n" %
(override_python_LDFLAGS))
python_LDFLAGS = override_python_LDFLAGS
override_python_LIBDIR = os_env.get('python_LIBDIR', None)
if override_python_LIBDIR is not None:
conf.log.write("python_LIBDIR override from environment = %r\n" %
(override_python_LIBDIR))
python_LIBDIR = override_python_LIBDIR
if python_MACOSX_DEPLOYMENT_TARGET:
conf.env['MACOSX_DEPLOYMENT_TARGET'] = python_MACOSX_DEPLOYMENT_TARGET
conf.environ[
'MACOSX_DEPLOYMENT_TARGET'] = python_MACOSX_DEPLOYMENT_TARGET
env['pyext_PATTERN'] = '%s' + python_SO
# Check for python libraries for embedding
if python_SYSLIBS is not None:
for lib in python_SYSLIBS.split():
if lib.startswith('-l'):
lib = lib[2:] # strip '-l'
env.append_value('LIB_PYEMBED', lib)
if python_SHLIBS is not None:
for lib in python_SHLIBS.split():
if lib.startswith('-l'):
env.append_value('LIB_PYEMBED', lib[2:]) # strip '-l'
else:
env.append_value('LINKFLAGS_PYEMBED', lib)
if Options.platform != 'darwin' and python_LDFLAGS:
parse_flags(python_LDFLAGS, 'PYEMBED', env)
result = False
name = 'python' + env['PYTHON_VERSION']
if python_LIBDIR is not None:
path = [python_LIBDIR]
conf.log.write("\n\n# Trying LIBDIR: %r\n" % path)
result = conf.check(lib=name, uselib='PYEMBED', libpath=path)
if not result and python_LIBPL is not None:
conf.log.write(
"\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n"
)
path = [python_LIBPL]
result = conf.check(lib=name, uselib='PYEMBED', libpath=path)
if not result:
conf.log.write(
"\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n"
)
path = [os.path.join(python_prefix, "libs")]
name = 'python' + env['PYTHON_VERSION'].replace('.', '')
result = conf.check(lib=name, uselib='PYEMBED', libpath=path)
if result:
env['LIBPATH_PYEMBED'] = path
env.append_value('LIB_PYEMBED', name)
else:
conf.log.write("\n\n### LIB NOT FOUND\n")
# under certain conditions, python extensions must link to
# python libraries, not just python embedding programs.
if (sys.platform == 'win32' or sys.platform.startswith('os2')
or sys.platform == 'darwin' or Py_ENABLE_SHARED):
env['LIBPATH_PYEXT'] = env['LIBPATH_PYEMBED']
env['LIB_PYEXT'] = env['LIB_PYEMBED']
# We check that pythonX.Y-config exists, and if it exists we
# use it to get only the includes, else fall back to distutils.
override_python_INCLUDEPY = os_env.get('python_INCLUDEPY', None)
if override_python_INCLUDEPY is not None:
conf.log.write("INCLUDEPY override from environment = %r\n" %
(override_python_INCLUDEPY))
INCLUDEPY = override_python_INCLUDEPY
python_config = ''
conf.ADD_LDFLAGS('-lm')
conf.ADD_LDFLAGS('-lutil')
conf.ADD_LDFLAGS('-ldl')
else:
includes = []
if override_python_INCLUDEPY is None:
python_config = conf.find_program(
'python%s-config' %
('.'.join(env['PYTHON_VERSION'].split('.')[:2])),
var='PYTHON_CONFIG')
if not python_config and override_python_INCLUDEPY is None:
python_config = conf.find_program(
'python-config-%s' %
('.'.join(env['PYTHON_VERSION'].split('.')[:2])),
var='PYTHON_CONFIG')
if python_config and override_python_INCLUDEPY is None:
for incstr in Utils.cmd_output("%s --includes" %
(python_config, )).strip().split():
# strip the -I or /I
if (incstr.startswith('-I') or incstr.startswith('/I')):
incstr = incstr[2:]
# append include path, unless already given
if incstr not in includes:
includes.append(incstr)
conf.log.write("Include path for Python extensions "
"(found via python-config --includes): %r\n" %
(includes, ))
env['CPPPATH_PYEXT'] = includes
env['CPPPATH_PYEMBED'] = includes
else:
conf.log.write("Include path for Python extensions "
"(found via distutils module): %r\n" % (INCLUDEPY, ))
env['CPPPATH_PYEXT'] = [INCLUDEPY]
env['CPPPATH_PYEMBED'] = [INCLUDEPY]
env['CPPPATH'] = [INCLUDEPY]
# Code using the Python API needs to be compiled with -fno-strict-aliasing
if env['CC_NAME'] == 'gcc':
env.append_value('CCFLAGS_PYEMBED', '-fno-strict-aliasing')
env.append_value('CCFLAGS_PYEXT', '-fno-strict-aliasing')
env.append_value('CCFLAGS_PYEMBED', '-fPIC')
env.append_value('CCFLAGS_PYEXT', '-fPIC')
if env['CXX_NAME'] == 'gcc':
env.append_value('CXXFLAGS_PYEMBED', '-fno-strict-aliasing')
env.append_value('CXXFLAGS_PYEXT', '-fno-strict-aliasing')
env.append_value('CCFLAGS_PYEMBED', '-fPIC')
env.append_value('CCFLAGS_PYEXT', '-fPIC')
# See if it compiles
conf.check(define_name='HAVE_PYTHON_H',
uselib='PYEMBED',
fragment=FRAG_2,
errmsg='Could not find the python development headers',
mandatory=mandatory)
