1 files changed, 35 insertions, 0 deletions
diff --git a/cmake/external/protobuf.cmake b/cmake/external/protobuf.cmake
new file mode 100644
index 0000000..da5f11d
--- /dev/null
+++ b/cmake/external/protobuf.cmake
@@ -0,0 +1,35 @@
+# Copyright 2018 Google
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include(ExternalProject)
+include(ExternalProjectFlags)
+
+ExternalProject_GitSource(
+  PROTOBUF_GIT
+  GIT_REPOSITORY "https://github.com/google/protobuf.git"
+  GIT_TAG "v3.5.1.1"
+)
+
+ExternalProject_Add(
+  protobuf
+
+  ${PROTOBUF_GIT}
+
+  PREFIX ${PROJECT_BINARY_DIR}/external/protobuf
+
+  UPDATE_COMMAND ""
+  CONFIGURE_COMMAND cd <SOURCE_DIR> && ./autogen.sh
+    COMMAND <SOURCE_DIR>/configure --prefix=${PREFIX}
+  INSTALL_COMMAND ""
+)