-find_package(GTest REQUIRED)
-message("GTest: ${GTEST_INCLUDE_DIRS}")
+if (NOT GTEST_INCLUDE_DIRS)
+ find_package(GTest REQUIRED)
+endif()
+message("GTest: ${GTEST_INCLUDE_DIRS}, lib: ${GTEST_LIBRARY}")
include_directories(
${CMAKE_CURRENT_SOURCE_DIR}/include