Adding cython v0.20.2 in third-party.

third_party/cython/src/Cython/Distutils/extension.py

Index: third_party/cython/src/Cython/Distutils/extension.py
diff --git a/third_party/cython/src/Cython/Distutils/extension.py b/third_party/cython/src/Cython/Distutils/extension.py
new file mode 100644
index 0000000000000000000000000000000000000000..df600a8612ed8aadfc5ac274f6dc8b6d6b183c45
--- /dev/null
+++ b/third_party/cython/src/Cython/Distutils/extension.py
@@ -0,0 +1,128 @@
+"""Pyrex.Distutils.extension
+
+Provides a modified Extension class, that understands how to describe
+Pyrex extension modules in setup scripts."""
+
+__revision__ = "$Id:$"
+
+import sys
+import distutils.extension as _Extension
+
+try:
+    import warnings
+except ImportError:
+    warnings = None
+
+
+class Extension(_Extension.Extension):
+    # When adding arguments to this constructor, be sure to update
+    # user_options.extend in build_ext.py.
+    def __init__(self, name, sources,
+                 include_dirs=None,
+                 define_macros=None,
+                 undef_macros=None,
+                 library_dirs=None,
+                 libraries=None,
+                 runtime_library_dirs=None,
+                 extra_objects=None,
+                 extra_compile_args=None,
+                 extra_link_args=None,
+                 export_symbols=None,
+                 #swig_opts=None,
+                 depends=None,
+                 language=None,
+                 cython_include_dirs=None,
+                 cython_directives=None,
+                 cython_create_listing=False,
+                 cython_line_directives=False,
+                 cython_cplus=False,
+                 cython_c_in_temp=False,
+                 cython_gen_pxi=False,
+                 cython_gdb=False,
+                 no_c_in_traceback=False,
+                 cython_compile_time_env=None,
+                 **kw):
+
+        # Translate pyrex_X to cython_X for backwards compatibility.
+        had_pyrex_options = False
+        for key in kw.keys():
+            if key.startswith('pyrex_'):
+                had_pyrex_options = True
+                kw['cython' + key[5:]] = kw.pop(key)
+        if had_pyrex_options:
+            Extension.__init__(
+                self, name, sources,
+                include_dirs=include_dirs,
+                define_macros=define_macros,
+                undef_macros=undef_macros,
+                library_dirs=library_dirs,
+                libraries=libraries,
+                runtime_library_dirs=runtime_library_dirs,
+                extra_objects=extra_objects,
+                extra_compile_args=extra_compile_args,
+                extra_link_args=extra_link_args,
+                export_symbols=export_symbols,
+                #swig_opts=swig_opts,
+                depends=depends,
+                language=language,
+                no_c_in_traceback=no_c_in_traceback,
+                **kw)
+            return
+
+        _Extension.Extension.__init__(
+            self, name, sources,
+            include_dirs=include_dirs,
+            define_macros=define_macros,
+            undef_macros=undef_macros,
+            library_dirs=library_dirs,
+            libraries=libraries,
+            runtime_library_dirs=runtime_library_dirs,
+            extra_objects=extra_objects,
+            extra_compile_args=extra_compile_args,
+            extra_link_args=extra_link_args,
+            export_symbols=export_symbols,
+            #swig_opts=swig_opts,
+            depends=depends,
+            language=language,
+            **kw)
+
+        self.cython_include_dirs = cython_include_dirs or []
+        self.cython_directives = cython_directives or {}
+        self.cython_create_listing = cython_create_listing
+        self.cython_line_directives = cython_line_directives
+        self.cython_cplus = cython_cplus
+        self.cython_c_in_temp = cython_c_in_temp
+        self.cython_gen_pxi = cython_gen_pxi
+        self.cython_gdb = cython_gdb
+        self.no_c_in_traceback = no_c_in_traceback
+        self.cython_compile_time_env = cython_compile_time_env
+
+# class Extension
+
+read_setup_file = _Extension.read_setup_file
+
+
+# reuse and extend original docstring from base class (if we can)
+if sys.version_info[0] < 3 and _Extension.Extension.__doc__:
+    # -OO discards docstrings
+    Extension.__doc__ = _Extension.Extension.__doc__ + """\
+    cython_include_dirs : [string]
+        list of directories to search for Pyrex header files (.pxd) (in
+        Unix form for portability)
+    cython_directives : {string:value}
+        dict of compiler directives
+    cython_create_listing_file : boolean
+        write pyrex error messages to a listing (.lis) file.
+    cython_line_directives : boolean
+        emit pyx line numbers for debugging/profiling
+    cython_cplus : boolean
+        use the C++ compiler for compiling and linking.
+    cython_c_in_temp : boolean
+        put generated C files in temp directory.
+    cython_gen_pxi : boolean
+        generate .pxi file for public declarations
+    cython_gdb : boolean
+        generate Cython debug information for this extension for cygdb
+    no_c_in_traceback : boolean
+        emit the c file and line number from the traceback for exceptions
+"""