Cmake Option Integer, See the cmake-generator-expressions(7) manual for available expressions. Cache entry values are always strings, but CMake GUIs present widgets to help users set values. The type of the variable is used by the cmake-gui to control how that I'm asking this as a reminder to myself the next time I use CMake. If <variable> is already set as a normal or cache option() 是 CMake 中一个非常重要的命令，它用于定义一个布尔（Boolean）类型的构建选项，允许用户在配置项目时打开或关闭特定的功能、模块或行为。<variable> 定义的选项的名称。 Create a CMake integer option that can be modified through CLI. json Step 4: In-Depth CMake Target Commands Background Exercise 1 - Features and Definitions Then, either use the GUI (ccmake or cmake-gui) to set the cache variable, or specify the value of the variable on the cmake command line with -D: cmake -DMY_VARIABLE:STRING=option_value2 Arguments ¶ Arguments to add_compile_options may use generator expressions with the syntax $<>. 本文介绍了CMake中option命令的使用，用于控制编译流程，类似于C语言的宏条件编译。通过示例展示了option的基本格式、设置 When executing CMake configuration for the second time the option command would be ignored because there is already a value in the cache and the value from the set command would be In CMake project mode, a boolean cache variable is created with the option value. How can I get CMake options used for building from within a program? E. txt中option以前的语句，变量按未定义处理，option之后的语句，变量才被定义。另外，注意，option命令定义的变量不影响c Controlling CMake The variables in this section control CMake’s behavior. 2 说明 variable 选项名 help_text 描述、解释、备 How can I list cmake default build option in command-line? I need to build OpenCV libraries from source. The names created by -D flags and option() are not normal variables, they are cache variables.

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