1 # waf build tool for building IDL files with pidl
4 from waflib import Build, Logs, Utils, Configure, Errors
5 from waflib.Configure import conf
8 def SAMBA_CHECK_PYTHON(conf, mandatory=True, version=(2,4,2)):
9 # enable tool to build python extensions
10 if conf.env.HAVE_PYTHON_H:
11 conf.check_python_version(version)
16 if conf.env['EXTRA_PYTHON']:
17 conf.all_envs['extrapython'] = conf.env.derive()
18 conf.setenv('extrapython')
19 conf.env['PYTHON'] = conf.env['EXTRA_PYTHON']
20 conf.env['IS_EXTRA_PYTHON'] = 'yes'
21 conf.find_program('python', var='PYTHON', mandatory=True)
24 conf.check_python_version((3, 3, 0))
26 Logs.warn('extra-python needs to be Python 3.3 or later')
28 interpreters.append(conf.env['PYTHON'])
29 conf.setenv('default')
31 if not os.getenv('PYTHON', None):
32 conf.env['PYTHON'] = sys.executable
33 conf.find_program('python', var='PYTHON', mandatory=mandatory)
35 path_python = conf.find_program('python')
36 conf.env.PYTHON_SPECIFIED = (conf.env.PYTHON != path_python)
37 conf.check_python_version(version)
39 interpreters.append(conf.env['PYTHON'])
40 conf.env.python_interpreters = interpreters
44 def SAMBA_CHECK_PYTHON_HEADERS(conf, mandatory=True):
45 if conf.env.disable_python:
47 raise Errors.WafError("Cannot check for python headers when "
48 "--disable-python specified")
50 conf.msg("python headers", "Check disabled due to --disable-python")
51 # we don't want PYTHONDIR in config.h, as otherwise changing
52 # --prefix causes a complete rebuild
53 conf.env.DEFINES = [x for x in conf.env.DEFINES
54 if not x.startswith('PYTHONDIR=')
55 and not x.startswith('PYTHONARCHDIR=')]
59 if conf.env["python_headers_checked"] == []:
60 if conf.env['EXTRA_PYTHON']:
61 conf.setenv('extrapython')
62 _check_python_headers(conf, mandatory=True)
63 conf.setenv('default')
65 _check_python_headers(conf, mandatory)
66 conf.env["python_headers_checked"] = "yes"
68 if conf.env['EXTRA_PYTHON']:
69 extraversion = conf.all_envs['extrapython']['PYTHON_VERSION']
70 if extraversion == conf.env['PYTHON_VERSION']:
71 raise Errors.WafError("extrapython %s is same as main python %s" % (
72 extraversion, conf.env['PYTHON_VERSION']))
74 conf.msg("python headers", "using cache")
76 # we don't want PYTHONDIR in config.h, as otherwise changing
77 # --prefix causes a complete rebuild
78 conf.env.DEFINES = [x for x in conf.env.DEFINES
79 if not x.startswith('PYTHONDIR=')
80 and not x.startswith('PYTHONARCHDIR=')]
82 def _check_python_headers(conf, mandatory):
84 conf.errors.ConfigurationError
85 conf.check_python_headers()
86 except conf.errors.ConfigurationError:
90 if conf.env['PYTHON_VERSION'] > '3':
91 abi_pattern = os.path.splitext(conf.env['pyext_PATTERN'])[0]
92 conf.env['PYTHON_SO_ABI_FLAG'] = abi_pattern % ''
94 conf.env['PYTHON_SO_ABI_FLAG'] = ''
95 conf.env['PYTHON_LIBNAME_SO_ABI_FLAG'] = (
96 conf.env['PYTHON_SO_ABI_FLAG'].replace('_', '-'))
98 for lib in conf.env['LINKFLAGS_PYEMBED']:
99 if lib.startswith('-L'):
100 conf.env.append_unique('LIBPATH_PYEMBED', lib[2:]) # strip '-L'
101 conf.env['LINKFLAGS_PYEMBED'].remove(lib)
103 # same as in waf 1.5, keep only '-fno-strict-aliasing'
104 # and ignore defines such as NDEBUG _FORTIFY_SOURCE=2
105 conf.env.DEFINES_PYEXT = []
106 conf.env.CFLAGS_PYEXT = ['-fno-strict-aliasing']
110 def PYTHON_BUILD_IS_ENABLED(self):
111 return self.CONFIG_SET('HAVE_PYTHON_H')
113 Build.BuildContext.PYTHON_BUILD_IS_ENABLED = PYTHON_BUILD_IS_ENABLED
116 def SAMBA_PYTHON(bld, name,
124 init_function_sentinel=None,
129 '''build a python extension for Samba'''
131 # force-disable when we can't build python modules, so
132 # every single call doesn't need to pass this in.
133 if not bld.PYTHON_BUILD_IS_ENABLED():
136 if bld.env['IS_EXTRA_PYTHON']:
137 name = 'extra-' + name
139 # when we support static python modules we'll need to gather
140 # the list from all the SAMBA_PYTHON() targets
141 if init_function_sentinel is not None:
142 cflags += ' -DSTATIC_LIBPYTHON_MODULES=%s' % init_function_sentinel
144 # From https://docs.python.org/2/c-api/arg.html:
145 # Starting with Python 2.5 the type of the length argument to
146 # PyArg_ParseTuple(), PyArg_ParseTupleAndKeywords() and PyArg_Parse()
147 # can be controlled by defining the macro PY_SSIZE_T_CLEAN before
148 # including Python.h. If the macro is defined, length is a Py_ssize_t
149 # rather than an int.
151 # Because <Python.h> if often included before includes.h/config.h
152 # This must be in the -D compiler options
153 cflags += ' -DPY_SSIZE_T_CLEAN=1'
155 source = bld.EXPAND_VARIABLES(source, vars=vars)
157 if realname is not None:
158 link_name = 'python/%s' % realname
162 bld.SAMBA_LIBRARY(name,
165 public_deps=public_deps,
168 cflags_end=cflags_end,
169 local_include=local_include,
174 target_type='PYTHON',
175 install_path='${PYTHONARCHDIR}',
176 allow_undefined_symbols=True,
180 Build.BuildContext.SAMBA_PYTHON = SAMBA_PYTHON
183 def pyembed_libname(bld, name, extrapython=False):
184 if bld.env['PYTHON_SO_ABI_FLAG']:
185 return name + bld.env['PYTHON_SO_ABI_FLAG']
189 Build.BuildContext.pyembed_libname = pyembed_libname
192 def gen_python_environments(bld, extra_env_vars=()):
193 """Generate all Python environments
195 To be used in a for loop. Normally, the loop body will be executed once.
197 When --extra-python is used, the body will additionaly be executed
198 with the extra-python environment active.
202 if bld.env['EXTRA_PYTHON']:
203 copied = ('GLOBAL_DEPENDENCIES', 'TARGET_TYPE') + tuple(extra_env_vars)
205 bld.all_envs['extrapython'][name] = bld.all_envs['default'][name]
206 default_env = bld.all_envs['default']
207 bld.all_envs['default'] = bld.all_envs['extrapython']
209 bld.all_envs['default'] = default_env
211 Build.BuildContext.gen_python_environments = gen_python_environments