学习笔记-cmake

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1. 精简篇(浓缩的都是精华,最实用的放最前面):

内部变量:

CMAKE_C_COMPILER:指定C编译器

CMAKE_CXX_COMPILER

CMAKE_C_FLAGS:编译C文件时的选项,如-g;也可以通过add_definitions添加编译选项

EXECUTABLE_OUTPUT_PATH:可执行文件的存放路径

LIBRARY_OUTPUT_PATH:库文件路径

CMAKE_BUILD_TYPE::build 类型(Debug, Release, ...),CMAKE_BUILD_TYPE=Debug

BUILD_SHARED_LIBS:Switch between shared and static libraries

内置变量的使用:

>> 在CMakeLists.txt中指定,使用set

>> cmake命令中使用,如cmake -DBUILD_SHARED_LIBS=OFF


命令

project (HELLO)   #指定项目名称,生成的VC项目的名称;

>>PROJECT_BINARY_DIR和CMAKE_BINARY_DIR、<projectname>_BINARY_DIR都是指进行编译的目录;

include_directories:指定头文件的搜索路径,相当于指定gcc的-I参数

>> include_directories (${PROJECT_SOURCE_DIR}/Hello)  #增加Hello为include目录

link_directories:动态链接库或静态链接库的搜索路径,相当于gcc的-L参数

>> link_directories (${HELLO_BINARY_DIR}/Hello)     #增加Hello为link目录

add_subdirectory:包含子目录

>> add_subdirectory (Hello)

add_executable:编译可执行程序,指定编译,好像也可以添加.o文件

>> add_executable (helloDemo demo.cxx demo_b.cxx)   #将cxx编译成可执行文件——

add_definitions:添加编译参数

>> add_definitions(-DDEBUG)将在gcc命令行添加DEBUG宏定义;

>> add_definitions( “-Wall -ansi –pedantic –g”)

target_link_libraries:添加链接库,相同于指定-l参数

>> target_link_libraries(demo Hello) #将可执行文件与Hello连接成最终文件demo

add_library:

>> add_library(Hello hello.cxx)  #将hello.cxx编译成静态库如libHello.a

add_custom_target:

message( status|fatal_error, “message”):

set_target_properties( ... ): lots of properties... OUTPUT_NAME, VERSION, ....

link_libraries( lib1 lib2 ...): All targets link with the same set of libs


获得目录下的所有文件:

aux_source_directory(<dir> <variable>)

区分Debug和Release:

cmake -DCMAKE_BUILD_TYPE=Debug(或Release

IF(DEBUG_mode)

    add_definitions(-DDEBUG)

ENDIF()





2. cmake较完整的手册(本着使用的出发点,自己也没完整看过)

命令集合:

add_custom_command, add_custom_target, add_definitions, add_dependencies, add_executable, add_library, add_subdirectory, add_test, aux_source_directory, break, build_command, cmake_minimum_required, cmake_policy, configure_file, create_test_sourcelist, define_property, else, elseif, enable_language, enable_testing, endforeach, endfunction, endif, endmacro, endwhile, execute_process, export, file, find_file, find_library, find_package, find_path, find_program, fltk_wrap_ui, foreach, function, get_cmake_property, get_directory_property, get_filename_component, get_property, get_source_file_property, get_target_property, get_test_property, if, include, include_directories, include_external_msproject, include_regular_expression, install, link_directories, list, load_cache, load_command, macro, mark_as_advanced, math, message, option, output_required_files, project, qt_wrap_cpp, qt_wrap_ui, remove_definitions, return, separate_arguments, set, set_directory_properties, set_property, set_source_files_properties, set_target_properties, set_tests_properties, site_name, source_group, string, target_link_libraries, try_compile, try_run, unset, variable_watch, while



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