Add patch for grpcio

Author: msimacek

graalpython/lib-graalpython/patches/grpcio/grpcio.patch

@@ -0,0 +1,22 @@
+diff --git a/pyproject.toml b/pyproject.toml
+new file mode 100644
+index 0000000..9175509
+--- /dev/null
++++ b/pyproject.toml
+@@ -0,0 +1,3 @@
++[build-system]
++requires = ["setuptools >= 40.6.0", "wheel", "Cython"]
++build-backend = "setuptools.build_meta:__legacy__"
+diff --git a/setup.py b/setup.py
+index 8da207b..6d5a38b 100644
+--- a/setup.py
++++ b/setup.py
+@@ -131,7 +131,7 @@ BUILD_OVERRIDE_BORING_SSL_ASM_PLATFORM = os.environ.get(
+ # to have been generated by building first *with* Cython support. Even if this
+ # is set to false, if the script detects that the generated `.c` file isn't
+ # present, then it will still attempt to use Cython.
+-BUILD_WITH_CYTHON = _env_bool_value('GRPC_PYTHON_BUILD_WITH_CYTHON', 'False')
++BUILD_WITH_CYTHON = _env_bool_value('GRPC_PYTHON_BUILD_WITH_CYTHON', 'True')
+ 
+ # Export this variable to use the system installation of openssl. You need to
+ # have the header files installed (in /usr/include/openssl) and during

graalpython/lib-graalpython/patches/grpcio/metadata.toml

@@ -0,0 +1,3 @@
+[[rules]]
+# Force re-cythonize
+patch = 'grpcio.patch'