cmake 各种语法的作用

Posted 2021-01-25 o-v-o

CmakeLists.txt 语法作用

1.add_library()

该指令主要作用是将指定的源文件生成链接文件,然后添加到工程中.

2.link_directories()

该指令的作用是指定链接的库文件的路径.

3.target_link_libraries()

将目标文件与库文件进行链接.

4.find_package(PCL 1.2 REQUIRED)

5.include_directories()

添加头文件目录

6.find_library()

查找库所在目录

7.link_libraries()

添加需要链接的库文件路径

cmake_minimum_required (VERSION 2.6)

INCLUDE_DIRECTORIES(../../thirdparty/comm)

FIND_LIBRARY(COMM_LIB comm ../../thirdparty/comm/lib NO_DEFAULT_PATH)
FIND_LIBRARY(RUNTIME_LIB rt /usr/lib  /usr/local/lib NO_DEFAULT_PATH)

link_libraries(${COMM_LIB} ${RUNTIME_LIB})

ADD_DEFINITIONS(
-O3 -g -W -Wall
 -Wunused-variable -Wunused-parameter -Wunused-function -Wunused
 -Wno-deprecated -Woverloaded-virtual -Wwrite-strings
 -D__WUR= -D_REENTRANT -D_FILE_OFFSET_BITS=64 -DTIXML_USE_STL
)


add_library(lib_demo
        cmd.cpp
        global.cpp
        md5.cpp
)

link_libraries(lib_demo)
add_executable(demo
        main.cpp
)

# link library in static mode
target_link_libraries(demo libuuid.a)