link_directories, LINK_LIBRARIES, target_link_libraries使用总结
2017-08-30 09:39
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总结一下include_directories,link_directories,link_libraries和target_link_libraries的作用。尤其是后面三个参数,比较相似,容易弄混。
INCLUDE_DIRECTORIES(添加头文件目录)
它相当于g++选项中的-I参数的作用,也相当于环境变量中增加路径到CPLUS_INCLUDE_PATH变量的作用(这里特指c++。c和Java中用法类似)。
比如:
include_directories("/opt/MATLAB/R2012a/extern/include")
export CPLUS_INCLUDE_PATH=CPLUS_INCLUDE_PATH:$MATLAB/extern/include
LINK_DIRECTORIES(添加需要链接的库文件目录)
语法:
link_directories(directory1 directory2 ...)
它相当于g++命令的-L选项的作用,也相当于环境变量中增加LD_LIBRARY_PATH的路径的作用。
比如:
LINK_DIRECTORIES("/opt/MATLAB/R2012a/bin/glnxa64")
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$MATLAB/bin/glnxa64
LINK_LIBRARIES (添加需要链接的库文件路径,注意这里是全路径)
List of direct link dependencies.
比如:
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so")
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
也可以写成:
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so" "/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
TARGET_LINK_LIBRARIES (设置要链接的库文件的名称)
语法:TARGET_LINK_LIBRARIES(targetlibrary1 <debug | optimized> library2 ..)
比如(以下写法(包括备注中的)都可以):
TARGET_LINK_LIBRARIES(myProject hello),连接libhello.so库
TARGET_LINK_LIBRARIES(myProject libhello.a)
TARGET_LINK_LIBRARIES(myProject libhello.so)
再如:
TARGET_LINK_LIBRARIES(myProject libeng.so) #这些库名写法都可以。
TARGET_LINK_LIBRARIES(myProject eng)
TARGET_LINK_LIBRARIES(myProject -leng)
一个简单的示例(以下CMakeLists.txt效果相当,在ubuntu 12.04 + g++4.6下测试编译通过):
方式一:
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cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
include_directories("/opt/MATLAB/R2012a/extern/include")
#directly link to the libraries.
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so")
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
#equals to below
#LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so" "/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
add_executable(myProject main.cpp)
方式二:
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cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
include_directories("/opt/MATLAB/R2012a/extern/include")
LINK_DIRECTORIES("/opt/MATLAB/R2012a/bin/glnxa64")
add_executable(myProject main.cpp)
target_link_libraries(myProject eng mx)
#equals to below
#target_link_libraries(myProject -leng -lmx)
#target_link_libraries(myProject libeng.so libmx.so)
INCLUDE_DIRECTORIES(添加头文件目录)
它相当于g++选项中的-I参数的作用,也相当于环境变量中增加路径到CPLUS_INCLUDE_PATH变量的作用(这里特指c++。c和Java中用法类似)。
比如:
include_directories("/opt/MATLAB/R2012a/extern/include")
export CPLUS_INCLUDE_PATH=CPLUS_INCLUDE_PATH:$MATLAB/extern/include
LINK_DIRECTORIES(添加需要链接的库文件目录)
语法:
link_directories(directory1 directory2 ...)
它相当于g++命令的-L选项的作用,也相当于环境变量中增加LD_LIBRARY_PATH的路径的作用。
比如:
LINK_DIRECTORIES("/opt/MATLAB/R2012a/bin/glnxa64")
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$MATLAB/bin/glnxa64
LINK_LIBRARIES (添加需要链接的库文件路径,注意这里是全路径)
List of direct link dependencies.
比如:
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so")
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
也可以写成:
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so" "/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
TARGET_LINK_LIBRARIES (设置要链接的库文件的名称)
语法:TARGET_LINK_LIBRARIES(targetlibrary1 <debug | optimized> library2 ..)
比如(以下写法(包括备注中的)都可以):
TARGET_LINK_LIBRARIES(myProject hello),连接libhello.so库
TARGET_LINK_LIBRARIES(myProject libhello.a)
TARGET_LINK_LIBRARIES(myProject libhello.so)
再如:
TARGET_LINK_LIBRARIES(myProject libeng.so) #这些库名写法都可以。
TARGET_LINK_LIBRARIES(myProject eng)
TARGET_LINK_LIBRARIES(myProject -leng)
一个简单的示例(以下CMakeLists.txt效果相当,在ubuntu 12.04 + g++4.6下测试编译通过):
方式一:
[html] view
plain copy
cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
include_directories("/opt/MATLAB/R2012a/extern/include")
#directly link to the libraries.
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so")
LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
#equals to below
#LINK_LIBRARIES("/opt/MATLAB/R2012a/bin/glnxa64/libeng.so" "/opt/MATLAB/R2012a/bin/glnxa64/libmx.so")
add_executable(myProject main.cpp)
方式二:
[html] view
plain copy
cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
include_directories("/opt/MATLAB/R2012a/extern/include")
LINK_DIRECTORIES("/opt/MATLAB/R2012a/bin/glnxa64")
add_executable(myProject main.cpp)
target_link_libraries(myProject eng mx)
#equals to below
#target_link_libraries(myProject -leng -lmx)
#target_link_libraries(myProject libeng.so libmx.so)
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