CMake常用命令的一些整理

cmake_minimum_required(version 版本号)

cmake_minimum_required(version 2.8)

#定义工程名称 
project(项目名称)

project(MyTest)

set(var [value])

# 第一种用法，生成代码文件列表
#先直接设置SRC_LIST的值
set(SRC_LIST add.h add.cpp)
#然后再在SRC_LIST中追加main.cpp 
set(SRC_LIST ${SRC_LIST} main.cpp)

# 第二种用法，设置库生成目录或者可执行文件生成目录
set( LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib/linux) 
set( EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

# 编译静态库
add_library(库名称 STATIC 代码文件名称) 

# 编译动态库
add_library(库名称 SHARED 代码文件名称) 

# 编译可执行程序
add_executable(可执行程序名 代码文件名称)

# 编译静态库
add_library(add STATIC add.h add.cpp)
add_library(add STATIC ${ADD_SRC} ${ADD_HDR})

# 编译动态库
add_library(add  SHARED add.h add.cpp) 
add_library(add SHARED  ${ADD_SRC} ${ADD_HDR})

# 编译可执行程序
add_executable(main add.h add.cpp mai.cpp)
add_executable(main ${MAIN_SRC} ${MAIN_HDR})

set(LIBRARY_OUTPUT_PATH  ${PROJECT_SOURCE_DIR}/lib)

#设定可执行二进制文件的目录
set( EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

link_directories( ${PROJECT_SOURCE_DIR}/lib/linux)

include_directories(${PROJECT_SOURCE_DIR}/include)

#预定义宏
add_definitions(-D宏名称)

add_definitions(-DWINDOWS)
add_definitions(-DLINUX)

link_libraries(
    静态库1
    静态库2
    静态库3
    ...
)

#设置链接目录
link_directories( ${PROJECT_SOURCE_DIR}/lib/linux)
link_libraries(
        lib1.a
        lib2.a
)

target_link_libraries(所需生成的文件名称 所需链接的动态库名称)

target_link_libraries(main dl)

(1) link_libraries用在add_executable之前，target_link_libraries用在add_executable之后
(2) link_libraries用来链接静态库，target_link_libraries用来链接导入库，即按照header file + .lib + .dll方式隐式调用动态库的.lib库

file(GLOB MAIN_SRC ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
file(GLOB MAIN_HDR ${CMAKE_CURRENT_SOURCE_DIR}/*.h)

file(GLOB MAIN_SRC ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp)
file(GLOB MAIN_HDR ${CMAKE_CURRENT_SOURCE_DIR}/src/*.h)

file(GLOB_RECURSE MAIN_SRC ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
file(GLOB_RECURSE MAIN_HDR ${CMAKE_CURRENT_SOURCE_DIR}/*.h)

list(LENGTH <list> <output variable>) 
list(GET <list> <element index> [<element index> ...]
   <output variable>)
list(APPEND <list> [<element> ...])
list(FIND <list> <value> <output variable>)
list(INSERT <list> <element_index> <element> [<element> ...])
list(REMOVE_ITEM <list> <value> [<value> ...])
list(REMOVE_AT <list> <index> [<index> ...])
list(REMOVE_DUPLICATES <list>)
list(REVERSE <list>)
list(SORT <list>)

list(REMOVE_ITEM MAIN_SRC ${CMAKE_CURRENT_SOURCE_DIR}/add.cpp)

# 搜索当前目录
file(GLOB  MAIN_SRC ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
file(GLOB  MAIN_HDR ${CMAKE_CURRENT_SOURCE_DIR}/*.h)

# 递归搜索当前目录下src子目录
file(GLOB_RECURSE MAIN_SRC_ELSE  ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp)
file(GLOB_RECURSE MAIN_HDR_ELSE  ${CMAKE_CURRENT_SOURCE_DIR}/src/*.h)

# 将MAIN_SRC_ELSE中的值添加到MAIN_SRC 
# 将MAIN_HDR_ELSE中的值添加到MAIN_HDR 
list(APPEND MAIN_SRC ${MAIN_SRC_ELSE})
list(APPEND MAIN_HDR ${MAIN_HDR_ELSE})

add_subdirectory(src)

message(STATUS "Enter cmake ${CMAKE_CURRENT_LIST_DIR}")

message(WARNING "Enter cmake ${CMAKE_CURRENT_LIST_DIR}")

message(FATAL_ERROR "Enter cmake ${CMAKE_CURRENT_LIST_DIR}")

install(TARGETS util
  RUNTIME DESTINATION bin
  LIBRARY DESTINATION lib
  ARCHIVE DESTINATION lib)

install(DIRECTORY include/ DESTINATION include/util)

set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -march=native -O3 -frtti -fpermissive -fexceptions -pthread")

add_compile_options(-march=native -O3 -fexceptions -pthread -fPIC)

add_compile_options命令添加的编译选项是针对所有编译器的(包括c和c++编译器)，而set命令设置CMAKE_C_FLAGS或CMAKE_CXX_FLAGS变量则是分别只针对c和c++编译器的。

if(WIN32)
    message(STATUS “This operating system is Windows.”)
elseif(UNIX)
    message(STATUS “This operating system is Linux.”)
elseif(APPLE)
    message(STATUS “This operating system is APPLE.”)
endif(WIN32)

if (CMAKE_SYSTEM_NAME MATCHES "Linux")
    message(STATUS "current platform: Linux ")
elseif (CMAKE_SYSTEM_NAME MATCHES "Windows")
    message(STATUS "current platform: Windows")
elseif (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
    message(STATUS "current platform: FreeBSD")
else ()
    message(STATUS "other platform: ${CMAKE_SYSTEM_NAME}")
endif (CMAKE_SYSTEM_NAME MATCHES "Linux")

set(env{name} value)

$env{name}

message(STATUS "$env{name}")

include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})

foreach(loop_var RANGE start stop [step])
    ...
endforeach(loop_var)

while(condition)
    ...
endwhile()

include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
if(COMPILER_SUPPORTS_CXX11)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
elseif(COMPILER_SUPPORTS_CXX0X)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
else()
    message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()

add_executable(demo demo.cpp) # 生成可执行文件
add_library(common STATIC util.cpp) # 生成静态库
add_library(common SHARED util.cpp) # 生成动态库或共享库

set_target_properties(${第三方库项目名称} PROPERTIES FOLDER “目标文件夹名称”)

add_executable(demo demo.cpp) # 生成可执行文件
add_library(common STATIC util.cpp) # 生成静态库
add_library(common SHARED util.cpp) # 生成动态库或共享库

target_link_libraries()

touch *