Switch to Makefile based build on mac

PYTHON-MANIFEST.in

@@ -17,3 +17,4 @@ include src/python/grpcio/support.py
 include src/python/grpcio/README.rst
 include requirements.txt
 include etc/roots.pem
+include Makefile

setup.py

@@ -102,7 +102,7 @@ ENABLE_DOCUMENTATION_BUILD = os.environ.get(
 EXTRA_ENV_COMPILE_ARGS = os.environ.get('GRPC_PYTHON_CFLAGS', None)
 EXTRA_ENV_LINK_ARGS = os.environ.get('GRPC_PYTHON_LDFLAGS', None)
 if EXTRA_ENV_COMPILE_ARGS is None:
-  EXTRA_ENV_COMPILE_ARGS = '-std=c++11'
+  EXTRA_ENV_COMPILE_ARGS = ''
   if 'win32' in sys.platform and sys.version_info < (3, 5):
     # We use define flags here and don't directly add to DEFINE_MACROS below to
     # ensure that the expert user/builder has a way of turning it off (via the
@@ -114,7 +114,9 @@ if EXTRA_ENV_COMPILE_ARGS is None:
       EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime64 -D_timeb=__timeb64'
   elif 'win32' in sys.platform:
     EXTRA_ENV_COMPILE_ARGS += ' -D_PYTHON_MSVC'
-  elif "linux" in sys.platform or "darwin" in sys.platform:
+  elif "linux" in sys.platform:
+    EXTRA_ENV_COMPILE_ARGS += ' -std=c++11 -fvisibility=hidden -fno-wrapv'
+  elif "darwin" in sys.platform:
     EXTRA_ENV_COMPILE_ARGS += ' -fvisibility=hidden -fno-wrapv'
 
 if EXTRA_ENV_LINK_ARGS is None:
@@ -172,7 +174,7 @@ LDFLAGS = tuple(EXTRA_LINK_ARGS)
 CFLAGS = tuple(EXTRA_COMPILE_ARGS)
 if "linux" in sys.platform or "darwin" in sys.platform:
   pymodinit_type = 'PyObject*' if PY3 else 'void'
-  pymodinit = 'extern "C" __attribute__((visibility ("default"))) {}'.format(pymodinit_type)
+  pymodinit = '__attribute__((visibility ("default"))) {}'.format(pymodinit_type)
   DEFINE_MACROS += (('PyMODINIT_FUNC', pymodinit),)
 
 # By default, Python3 distutils enforces compatibility of
@@ -192,14 +194,22 @@ def cython_extensions_and_necessity():
   cython_module_files = [os.path.join(PYTHON_STEM,
                                name.replace('.', '/') + '.pyx')
                   for name in CYTHON_EXTENSION_MODULE_NAMES]
+  if "darwin" in sys.platform:
+    extra_objects = ['libs/opt/libares.a',
+                     'libs/opt/libboringssl.a',
+                     'libs/opt/libgpr.a',
+                     'libs/opt/libgrpc.a']
+    CORE_C_FILES = []
+  else:
+    extra_objects = []
   extensions = [
       _extension.Extension(
           name=module_name,
-          language='c++',
           sources=[module_file] + list(CYTHON_HELPER_C_FILES) + list(CORE_C_FILES),
           include_dirs=list(EXTENSION_INCLUDE_DIRECTORIES),
           libraries=list(EXTENSION_LIBRARIES),
           define_macros=list(DEFINE_MACROS),
+          extra_objects=extra_objects,
           extra_compile_args=list(CFLAGS),
           extra_link_args=list(LDFLAGS),
       ) for (module_name, module_file) in zip(list(CYTHON_EXTENSION_MODULE_NAMES), cython_module_files)

src/python/grpcio/commands.py

@@ -266,6 +266,25 @@ class BuildExt(build_ext.build_ext):
     LINK_OPTIONS = {}
 
     def build_extensions(self):
+        if "darwin" in sys.platform:
+            target_path = os.path.abspath(
+                os.path.join(os.path.dirname(os.path.realpath(__file__)),
+                             '..', '..', '..', 'libs', 'opt'))
+            targets = [os.path.join(target_path, 'libboringssl.a'),
+                       os.path.join(target_path, 'libares.a'),
+                       os.path.join(target_path, 'libgpr.a'),
+                       os.path.join(target_path, 'libgrpc.a')]
+            make_process = subprocess.Popen(['make'] + targets,
+                                            stdout=subprocess.PIPE,
+                                            stderr=subprocess.PIPE)
+            make_out, make_err = make_process.communicate()
+            if make_out and make_process.returncode != 0:
+              sys.stdout.write(make_out + '\n')
+            if make_err:
+              sys.stderr.write(make_err + '\n')
+            if make_process.returncode != 0:
+              raise Exception("make command failed!")
+
         compiler = self.compiler.compiler_type
         if compiler in BuildExt.C_OPTIONS:
             for extension in self.extensions: