Merge pull request #1948 from emailweixu/protobuf.cmake

Fix protobuf.cmake to handle empty PROTOBUF_VERSION correctly

Merge pull request #1948 from emailweixu/protobuf.cmake
Fix protobuf.cmake to handle empty PROTOBUF_VERSION correctly
29026f9f · emailweixu · GitHub · ec3111ab · e4af8ef4 · 29026f9f
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Showing with 4 addition and 4 deletion

cmake/external/protobuf.cmake cmake/external/protobuf.cmake +4 -4

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--- a/cmake/external/protobuf.cmake
+++ b/cmake/external/protobuf.cmake
@@ -20,7 +20,7 @@ FIND_PACKAGE(Protobuf ${PROTOBUF_VERSION})
 IF(PROTOBUF_FOUND)
    EXEC_PROGRAM(${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")
+    IF ("${PROTOBUF_VERSION}" VERSION_LESS "3.1.0")
        SET(PROTOBUF_FOUND OFF)
    ENDIF()
 ENDIF(PROTOBUF_FOUND)