CMake中常见的内置变量

CMake常见内置变量说明

CMake的所有内置变量可通过官方文档cmake-variables (opens new window)进行查阅，以下仅对较为常见的内置变量进行说明。

PROJECT_NAME

返回通过PROJECT定义的项目名称

CMAKE_BUILD_TYPE

返回项目构建的类型

常常用以下三行作为 CMakeLists.txt 的开头，让默认的构建类型为发布模式。

if (NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE Release)
endif()

CMAKE_C_COMPILER

C编译器

CMAKE_CXX_COMPILER

C++编译器

PROJECT_BINARY_DIR

表示工程的编译目录

PROJECT_SOURCE_DIR

表示工程的源码目录

CMAKE_CURRENT_SOURCE_DIR

当前处理的CMakeLists.txt所在的路径

CMAKE_CURRENT_LIST_FILE

调用这个变量的CMakeLists.txt的完整路径

CMAKE_MODULE_PATH

find_package指令在这个路径下查找xxx.cmake文件

EXECUTABLE_OUTPUT_PATH

定义目标二进制可执行文件的存放位置

LIBRARY_OUTPUT_PATH

定义目标链接库文件的存放位置

输出结果

Windows

1.PROJECT_NAME = projectName
2.CMAKE_C_COMPILER = cl.exe
3.CMAKE_CXX_COMPILER = D:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.36.32532/bin/Hostx64/x64/cl.exe
4.PROJECT_BINARY_DIR = D:/Users/Sirius0v0/000-worktable/MyTemplate/out/build/x64-debug
5.PROJECT_SOURCE_DIR = D:/Users/Sirius0v0/000-worktable/MyTemplate
6.CMAKE_CURRENT_SOURCE_DIR = D:/Users/Sirius0v0/000-worktable/MyTemplate
7.CMAKE_CURRENT_LIST_FILE = D:/Users/Sirius0v0/000-worktable/MyTemplate/CMakeLists.txt
8.CMAKE_MODULE_PATH = 
9.EXECUTABLE_OUTPUT_PATH = 
10.LIBRARY_OUTPUT_PATH = 

Ubuntu

1.PROJECT_NAME = projectName
2.CMAKE_C_COMPILER = 
3.CMAKE_CXX_COMPILER = /usr/bin/c++
4.PROJECT_BINARY_DIR = /home/sirius0v0/worktable/MyTemplate/build
5.PROJECT_SOURCE_DIR = /home/sirius0v0/worktable/MyTemplate
6.CMAKE_CURRENT_SOURCE_DIR = /home/sirius0v0/worktable/MyTemplate
7.CMAKE_CURRENT_LIST_FILE = /home/sirius0v0/worktable/MyTemplate/CMakeLists.txt
8.CMAKE_MODULE_PATH = 
9.EXECUTABLE_OUTPUT_PATH = 
10.LIBRARY_OUTPUT_PATH =