Feat: Protobuf compiled for host in OSX. Fix for arm64 OSX wallet-core

build/OSX/CMakeLists.txt

@@ -144,6 +144,28 @@ set(_grpc_EXTRA_PARAM
     -DgRPC_BUILD_GRPC_CSHARP_PLUGIN:BOOL=OFF
 )
 
+# --------------------------------------------------------
+# Build protobuf project from the git submodule
+set(PROTOBUF_SRC_DIR "${THIRDPARTY_DIR}/grpc/third_party/protobuf/cmake")
+
+# Build protobuf project from the git submodule.
+ExternalProject_Add(protobuf
+		PREFIX protobuf
+		SOURCE_DIR "${PROTOBUF_SRC_DIR}"
+		CMAKE_CACHE_ARGS
+		-Dprotobuf_BUILD_TESTS:BOOL=OFF
+		-Dprotobuf_WITH_ZLIB:BOOL=OFF
+		-Dprotobuf_MSVC_STATIC_RUNTIME:BOOL=OFF
+		-DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_CURRENT_BINARY_DIR}/protobuf
+		-Dprotobuf_BUILD_PROTOC_BINARIES:BOOL=ON
+)
+
+set(PROTOC_EXECUTABLE "${CMAKE_CURRENT_BINARY_DIR}/protobuf/bin/protoc")
+set(_PROTOBUF_TARGET protobuf)
+set(_PROTOBUF_HOST_CONFIG_DIR "${CMAKE_CURRENT_BINARY_DIR}/protobuf/lib/cmake/protobuf")
+set(_PROTOBUF_HOST_INCLUDE_DIR "${CMAKE_CURRENT_BINARY_DIR}/protobuf/include")
+set(_PROTOBUF_HOST_LIB_DIR "${CMAKE_CURRENT_BINARY_DIR}/protobuf/lib")
+
 # --------------------------------------------------------
 # set config for rocksdb
 set(_rocksdb_EXTRA_PARAM