Question

我有一个cmake项目，我想在其中添加一个包含matlab引擎的类。为了编译它，我需要包含两个库eng和mx，我通过添加

来完成

target_link_libraries( ${TARGET} /usr/local/MATLAB/R2013b/bin/glnxa64/libeng.so)
target_link_libraries( ${TARGET} /usr/local/MATLAB/R2013b/bin/glnxa64/libmx.so)

到我的CMakeLists.txt档案。
但是，在/usr/local/MATLAB/R2013b/bin/glnxa64/中还有很多其他旧版本的库在调用上述命令时也自动添加到路径中。我认为这会导致编译器找不到我的普通的图书馆再出现并产生错误如何只包含上面两个库，而不是glnxa64文件夹中的所有其他库？

运行cmake .后显示警告：

CMake Warning at CMakeLists.txt:23 (add_executable):  
Cannot generate a safe runtime search path for target CCDWidget because
files in some directories may conflict with libraries in implicit
directories:  

runtime library [libboost_program_options.so.1.49.0] in /usr/lib may be hidden by files in:  
/usr/local/MATLAB/R2013b/bin/glnxa64  
runtime library [libboost_system.so.1.49.0] in /usr/lib may be hidden by files in:  
/usr/local/MATLAB/R2013b/bin/glnxa64  
runtime library [libboost_filesystem.so.1.49.0] in /usr/lib may be hidden by files in:  
/usr/local/MATLAB/R2013b/bin/glnxa64  
runtime library [libboost_regex.so.1.49.0] in /usr/lib may be hidden by files in:  
/usr/local/MATLAB/R2013b/bin/glnxa64  

Some of these libraries may not be found correctly.

链接期间的错误消息：

Linking CXX executable CCDWidget  
/usr/lib/x86_64-linux-gnu/libharfbuzz.so.0: undefined reference to `FT_Face_GetCharVariantIndex'  
/usr/lib/x86_64-linux-gnu/libharfbuzz.so.0: undefined reference to `FT_Get_Advance'  
collect2: error: ld returned 1 exit status  
make[2]: ***  [CCDWidget] Error 1   
make[1]: *** [CMakeFiles/CCDWidget.dir/all] Error 2  
make: *** [all] Error 2

以下是我的完整CMakeLists.txt文件。用两个##注释掉的行是我之前尝试过的替代方案，并没有解决我的问题。我还在target_link_libraries命令中添加了LINK_PRIVATE，如下面的代码所示，这没有什么区别。单独选项PRIVATE似乎不被我的cmake版本接受，因为它将错误消息更改为

/usr/bin/ld: cannot find -lPRIVATE  
collect2: error: ld returned 1 exit status

当注释掉#eng行时，编译和链接可以正常工作（当调用matlab引擎时也会在Readout.cpp中注释掉），因此错误必须由该行产生。

#Specify the version being used as well as the language  
cmake_minimum_required(VERSION 2.6)  
##cmake_policy(SET CMP0003 NEW)  
#Name your project here  
project(CCDWidget)  
set(TARGET CCDWidget)  

set(MAIN_SOURCES CCDWidget.cpp main.cc CCDControl.cpp VideoWindow.cpp ImageWindow.cpp ThisMeasurement.cpp KineticSeries.cpp FastKinetics.cpp Readout.cpp)  

##SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)  

#set_source_files_properties(Readout.cpp PROPERTIES COMPILE_FLAGS "-I/usr/local/MATLAB/R2013b/extern/include -I/usr/local/MATLAB/R2013b/simulink/include -DMATLAB_MEX_FILE -ansi -D_GNU_SOURCE -I/usr/local/MATLAB/R2013b/extern/include/cpp -I/usr/local/MATLAB/R2013b/extern/include -DGLNXA64 -DGCC  -DMX_COMPAT_32 -DNDEBUG -Wno-effc++")  

find_package(Boost COMPONENTS program_options system filesystem regex REQUIRED)  
find_package(PkgConfig REQUIRED)  
pkg_check_modules(GTKMM gtkmm-3.0)  

include_directories( ${GTKMM_INCLUDE_DIRS} )  
include_directories( ${Boost_INCLUDE_DIR} )  
include_directories( ${PROJECT_SOURCE_DIR} )  
##link_directories(/usr/local/MATLAB/R2013b/bin/glnxa64)  
##target_link_libraries( ${TARGET} eng)  
##target_link_libraries( ${TARGET} mx)  

set(CMAKE_CXX_FLAGS "--std=c++11")  
add_executable( ${TARGET} ${MAIN_SOURCES} )  

target_link_libraries( ${TARGET} ${GTKMM_LIBRARIES} )  
target_link_libraries( ${TARGET} ${Boost_LIBRARIES} )  
target_link_libraries( ${TARGET} LINK_PRIVATE /usr/local/MATLAB/R2013b/bin/glnxa64/libeng.so)  # eng  
#target_link_libraries( ${TARGET} LINK_PRIVATE /usr/local/MATLAB/R2013b/bin/glnxa64/libmx.so ) # mx  
target_link_libraries( ${TARGET} andor )

Answer 1

您可以尝试使用imported target：

add_library(eng SHARED IMPORTED) 
set_property(TARGET eng PROPERTY IMPORTED_LOCATION /usr/local/MATLAB/R2013b/bin/glnxa64/libeng.so) 
... 
add_executable( ${TARGET} ${MAIN_SOURCES} ) 
... 
target_link_libraries(${TARGET} eng)

对于调试，您可以尝试使用“ make VERBOSE = 1 ”进行构建这将显示使用过的gcc命令行。 CMake可能会将您的 target_link_libraries 命令转换为：

g++ ... -L/usr/local/MATLAB/R2013b/bin/glnxa64 -leng ...

然后gcc在这个文件夹中找到一些boost库。

在target_link_libraries调用之后链接路径混淆

1 个答案: