1 files changed, 157 insertions, 0 deletions
diff --git a/buildtools/wafsamba/samba_python.py b/buildtools/wafsamba/samba_python.py
new file mode 100644
index 0000000..12a94c8
--- /dev/null
+++ b/buildtools/wafsamba/samba_python.py
@@ -0,0 +1,157 @@
+# waf build tool for building IDL files with pidl
+
+import os, sys
+from waflib import Build, Logs, Utils, Configure, Errors
+from waflib.Configure import conf
+
+@conf
+def SAMBA_CHECK_PYTHON(conf, version=(3,6,0)):
+
+    # enable tool to build python extensions
+    if conf.env.HAVE_PYTHON_H:
+        conf.check_python_version(version)
+        return
+
+    interpreters = []
+
+    conf.find_program('python3', var='PYTHON',
+                      mandatory=not conf.env.disable_python)
+    conf.load('python')
+    path_python = conf.find_program('python3')
+
+    conf.env.PYTHON_SPECIFIED = (conf.env.PYTHON != path_python)
+    conf.check_python_version(version)
+
+    interpreters.append(conf.env['PYTHON'])
+    conf.env.python_interpreters = interpreters
+
+
+@conf
+def SAMBA_CHECK_PYTHON_HEADERS(conf):
+    if conf.env.disable_python:
+
+        conf.msg("python headers", "Check disabled due to --disable-python")
+        # we don't want PYTHONDIR in config.h, as otherwise changing
+        # --prefix causes a complete rebuild
+        conf.env.DEFINES = [x for x in conf.env.DEFINES
+            if not x.startswith('PYTHONDIR=')
+            and not x.startswith('PYTHONARCHDIR=')]
+
+        return
+
+    if conf.env["python_headers_checked"] == []:
+        _check_python_headers(conf)
+        conf.env["python_headers_checked"] = "yes"
+
+    else:
+        conf.msg("python headers", "using cache")
+
+    # we don't want PYTHONDIR in config.h, as otherwise changing
+    # --prefix causes a complete rebuild
+    conf.env.DEFINES = [x for x in conf.env.DEFINES
+        if not x.startswith('PYTHONDIR=')
+        and not x.startswith('PYTHONARCHDIR=')]
+
+def _check_python_headers(conf):
+    conf.check_python_headers()
+
+    abi_pattern = os.path.splitext(conf.env['pyext_PATTERN'])[0]
+    conf.env['PYTHON_SO_ABI_FLAG'] = abi_pattern % ''
+    conf.env['PYTHON_LIBNAME_SO_ABI_FLAG'] = (
+        conf.env['PYTHON_SO_ABI_FLAG'].replace('_', '-'))
+
+    for lib in conf.env['LINKFLAGS_PYEMBED']:
+        if lib.startswith('-L'):
+            conf.env.append_unique('LIBPATH_PYEMBED', lib[2:]) # strip '-L'
+            conf.env['LINKFLAGS_PYEMBED'].remove(lib)
+
+    # same as in waf 1.5, keep only '-fno-strict-aliasing'
+    # and ignore defines such as NDEBUG _FORTIFY_SOURCE=2
+    conf.env.DEFINES_PYEXT = []
+    conf.env.CFLAGS_PYEXT = ['-fno-strict-aliasing']
+
+    return
+
+def PYTHON_BUILD_IS_ENABLED(self):
+    return self.CONFIG_SET('HAVE_PYTHON_H')
+
+Build.BuildContext.PYTHON_BUILD_IS_ENABLED = PYTHON_BUILD_IS_ENABLED
+
+
+def SAMBA_PYTHON(bld, name,
+                 source='',
+                 deps='',
+                 public_deps='',
+                 realname=None,
+                 cflags='',
+                 cflags_end=None,
+                 includes='',
+                 init_function_sentinel=None,
+                 local_include=True,
+                 vars=None,
+                 install=True,
+                 enabled=True):
+    '''build a python extension for Samba'''
+
+    # force-disable when we can't build python modules, so
+    # every single call doesn't need to pass this in.
+    if not bld.PYTHON_BUILD_IS_ENABLED():
+        enabled = False
+
+    # Save time, no need to build python bindings when fuzzing
+    if bld.env.enable_fuzzing:
+        enabled = False
+
+    # when we support static python modules we'll need to gather
+    # the list from all the SAMBA_PYTHON() targets
+    if init_function_sentinel is not None:
+        cflags += ' -DSTATIC_LIBPYTHON_MODULES=%s' % init_function_sentinel
+
+    # From https://docs.python.org/2/c-api/arg.html:
+    # Starting with Python 2.5 the type of the length argument to
+    # PyArg_ParseTuple(), PyArg_ParseTupleAndKeywords() and PyArg_Parse()
+    # can be controlled by defining the macro PY_SSIZE_T_CLEAN before
+    # including Python.h. If the macro is defined, length is a Py_ssize_t
+    # rather than an int.
+
+    # Because <Python.h> if often included before includes.h/config.h
+    # This must be in the -D compiler options
+    cflags += ' -DPY_SSIZE_T_CLEAN=1'
+
+    source = bld.EXPAND_VARIABLES(source, vars=vars)
+
+    if realname is not None:
+        link_name = 'python/%s' % realname
+    else:
+        link_name = None
+
+    bld.SAMBA_LIBRARY(name,
+                      source=source,
+                      deps=deps,
+                      public_deps=public_deps,
+                      includes=includes,
+                      cflags=cflags,
+                      cflags_end=cflags_end,
+                      local_include=local_include,
+                      vars=vars,
+                      realname=realname,
+                      link_name=link_name,
+                      pyext=True,
+                      target_type='PYTHON',
+                      install_path='${PYTHONARCHDIR}',
+                      allow_undefined_symbols=True,
+                      install=install,
+                      enabled=enabled)
+
+Build.BuildContext.SAMBA_PYTHON = SAMBA_PYTHON
+
+
+def pyembed_libname(bld, name):
+    if bld.env['PYTHON_SO_ABI_FLAG']:
+        return name + bld.env['PYTHON_SO_ABI_FLAG']
+    else:
+        return name
+
+Build.BuildContext.pyembed_libname = pyembed_libname
+
+