From bd41a8c482c6c1df03d118a6c7cb174a44b5d5ed Mon Sep 17 00:00:00 2001
From: liaogang <liaogang@baidu.com>
Date: Mon, 13 Mar 2017 18:06:30 +0800
Subject: [PATCH] Fix cmake find protobuf problem

---
 cmake/external/protobuf.cmake | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/cmake/external/protobuf.cmake b/cmake/external/protobuf.cmake
index 1575d8e9f56..446a7532c55 100644
--- a/cmake/external/protobuf.cmake
+++ b/cmake/external/protobuf.cmake
@@ -16,6 +16,14 @@ INCLUDE(ExternalProject)
 
 FIND_PACKAGE(Protobuf 3.1)
 
+IF(PROTOBUF_FOUND)
+    EXEC_PROGRAM(${PROTOBUF_PROTOC_EXECUTABLE} ARGS --version OUTPUT_VARIABLE PROTOBUF_VERSION)
+    STRING(REGEX MATCH "[0-9]+.[0-9]+" PROTOBUF_VERSION "${PROTOBUF_VERSION}")
+    IF (${PROTOBUF_VERSION} VERSION_LESS "3.1.0")
+        SET(PROTOBUF_FOUND OFF)
+    ENDIF()
+ENDIF(PROTOBUF_FOUND)
+
 IF(NOT PROTOBUF_FOUND)
     SET(PROTOBUF_SOURCES_DIR ${THIRD_PARTY_PATH}/protobuf)
     SET(PROTOBUF_INSTALL_DIR ${THIRD_PARTY_PATH}/install/protobuf)
-- 
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