c++ - CMake 中的 OpenCV 和 Gtest 冲突

Question

我正在尝试对我的应用程序进行一些 Google 测试，但我在 OpenCV 和 GTest 之间遇到了一些冲突:

/usr/lib/gcc/i686-linux-gnu/4.6/../../../../lib/libgtest.a(gtest-all.cc.o): In function `testing::internal::GTestLog::GTestLog(testing::internal::GTestLogSeverity, char const*, int)':
gtest-all.cc:(.text+0xdd84): multiple definition of `testing::internal::GTestLog::GTestLog(testing::internal::GTestLogSeverity, char const*, int)'
/usr/local/lib/libopencv_ts.a(ts_gtest.cpp.o):ts_gtest.cpp:(.text._ZN7testing8internal8GTestLogC2ENS0_16GTestLogSeverityEPKci+0x0): first defined here 
...

GTest 用于opencv_ts 库。有谁知道如何解决这些多重定义？

我认为如果我只添加我在 OpenCV 中使用的库，它将得到解决，但我不知道该怎么做。我试过:

target_link_libraries(${Exec8name}_test ${OpenCV}/opencv_core.so* ... )

target_link_libraries(${Exec8name}_test ${OpenCV_LIBS}/opencv_core.so* ... )

target_link_libraries(${Exec8name}_test ${OpenCV_LIBS_DIR}/opencv_core.so* ... )

等，但我只收到未找到的错误或No rule to make target

我试图删除两者之一，但出现错误

/usr/bin/ld: /usr/lib/debug/usr/lib/i386-linux-gnu/crt1.o(.debug_info): relocation 0 has invalid symbol index 11
/usr/bin/ld: /usr/lib/debug/usr/lib/i386-linux-gnu/crt1.o(.debug_info): relocation 1 has invalid symbol index 12
...

这是我的 CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

option(test "Build all tests." OFF)

set(EXECUTABLE_NAME MyProj)

project(${EXECUTABLE_NAME})

set(CMAKE_CXX_FLAGS "-g -Wall")

include_directories(    src/main/cpp
            ${Boost_INCLUDE_DIRS}
            )

find_package(OpenCV REQUIRED)
find_package(Boost REQUIRED COMPONENTS filesystem 
                    system 
                    regex 
                    program_options)

add_executable(${EXECUTABLE_NAME}_Sol2 
              src/main/cpp/main.cpp

              src/main/cpp/solution2/MySol2.hpp
              src/main/cpp/solution2/MySol2.cpp
              )

target_link_libraries(${EXECUTABLE_NAME}_Sol2   ${OpenCV_LIBS}
                        ${Boost_LIBRARIES}
                        )

if (test)
  find_package(GTest REQUIRED)

  enable_testing()

  include_directories( ${GTEST_INCLUDE_DIRS} )

  add_executable(${EXECUTABLE_NAME}_Sol2_test 
            src/test/cpp/test_Sol2.cpp

            src/main/cpp/solution2/MySol2.hpp
            src/main/cpp/solution2/MySol2.cpp
            )


  target_link_libraries(${EXECUTABLE_NAME}_Sol2_test    ${OpenCV_LIBRARIES}
                            ${Boost_LIBRARIES}
                            )

  target_link_libraries(${EXECUTABLE_NAME}_Sol2_test    ${GTEST_LIBRARIES}
                            pthread
                            )

  add_test(${EXECUTABLE_NAME}_Sol2_test 
          ${CMAKE_CURRENT_BINARY_DIR}/${EXECUTABLE_NAME}_Sol2_test
          )

endif()

谁能告诉我一些解决方法？

Answer 1

“opencv_ts”模块包含 gtest，因此您可以只包括所需的 OpenCV 模块，排除所有“ts”模块。例如:

find_package(OpenCV REQUIRED core imgproc highgui)