我正在使用没有root权限的服务器。我有一个简单的命令行应用程序，链接到OpenCV和Boost，我使用的是cmake 2.8.12。 / usr / lib64中有旧的boost库，但我想使用更新的boost库，我可以使用环境模块加载它们。 CMakeLists.txt文件如下：
cmake_minimum_required(VERSION 2.8.12)
find_package(Boost 1.55.0 REQUIRED COMPONENTS program_options system thread)
find_package(OpenCV REQUIRED)
message("Boost dirs: ${Boost_LIBRARY_DIRS} ${Boost_INCLUDE_DIRS}")
message("Boost libraries ${Boost_LIBRARIES}")
include_directories(${OpenCV_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
# set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -L${Boost_LIBRARY_DIRS}")
add_executable(tile_images src/tile_images.cpp)
target_link_libraries(tile_images ${OpenCV_LIBRARIES} ${Boost_LIBRARIES} )
消息打印到正确库的完整路径：
Boost dirs：/cm/shared/apps/boost/1.56/lib /cm/shared/apps/boost/1.56/include
提升图书馆 /cm/shared/apps/boost/1.56/lib/libboost_program_options.so;/cm/shared/apps/boost/1.56/lib/libboost_system.so;/cm/shared/apps/boost/1.56/lib/libboost_thread.so
链接时出现问题，cmake生成以下对c ++的调用：
/ usr / bin / c ++ CMakeFiles / tile_images.dir / src / tile_images.cpp.o -o tile_images -rdynamic /cm/shared/apps/opencv/2.4.9/lib/libopencv_videostab.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_video.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_ts.a /cm/shared/apps/opencv/2.4.9/lib/libopencv_superres.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_stitching.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_photo.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_ocl.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_objdetect.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_nonfree.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_ml.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_legacy.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_imgproc.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_highgui.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_gpu.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_flann.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_features2d.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_core.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_contrib.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_calib3d.so.2.4.9 -lboost_program_options -lboost_system -lboost_thread -ldl -lm -lpthread -lrt /cm/shared/apps/opencv/2.4.9/lib/libopencv_nonfree.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_ocl.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_gpu.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_photo.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_objdetect.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_legacy.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_video.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_ml.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_calib3d.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_features2d.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_highgui.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_imgproc.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_flann.so.2.4.9 /cm/shared/apps/opencv/2.4.9/lib/libopencv_core.so.2.4.9
请注意如何去除boost库的绝对路径，并且不使用-L标志包含它。然后我得到以下警告，暗示链接器正在接收/ usr / lib64中另一个较旧的boost安装
/ usr / bin / ld：警告：libboost_system.so.1.56.0，需要 /cm/shared/apps/boost/1.56/lib/libboost_thread.so，可能与 libboost_system.so.5
然后链接会因为一长串错误而失败，可能是因为使用了旧的Boost库，但代码是使用较新的Boost头构建的。
如果我将以下内容添加到CMakeLists.txt：
设置（CMAKE_CXX_FLAGS“$ {CMAKE_CXX_FLAGS} -L $ {Boost_LIBRARY_DIRS}”）
然后代码链接没有问题。我花了一些时间研究，但到目前为止，我已经画了一个空白，如何让CMake包含-L标志或如何阻止它从boost库中剥离绝对路径。任何帮助将不胜感激！
答案 0 :(得分：0)
我相信documentation：set(Boost_REALPATH ON)中解释了这一点。
Boost_REALPATH - 设置为ON以解析已发现的符号链接 图书馆协助包装。例如， 可以解析“系统”组件库 “/usr/lib/libboost_system.so.1.42.0”而不是 “/usr/lib/libboost_system.so”。事实并非如此 影响链接，除非是，否则不应启用 用户需要此信息。