target_link_libraries 和link_libraries区别

TARGET_LINK_LIBRARIES （设置要链接的库文件的名称）
语法：TARGET_LINK_LIBRARIES(targetlibrary1 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)

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")

例子1：

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)

例子二：

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)