cmake的VARIABLES
时间: 2023-10-16 22:11:05 浏览: 37
在 CMake 中,VARIABLES 是一个命令行选项,用于输出 CMake 中定义的所有变量的名称和当前值。当你运行 CMake 时,可以使用以下命令行选项打印出这些变量:
```
cmake --help-variable-list
```
这将输出所有可用的变量列表,包括系统变量和用户定义的变量。如果你只想打印用户定义的变量,可以使用以下命令行选项:
```
cmake --help-variable-list | grep "^CMAKE"
```
这将只打印以 "CMAKE" 开头的变量。你也可以将输出重定向到文件中:
```
cmake --help-variable-list > variables.txt
```
这将将输出写入名为 variables.txt 的文件中,以便稍后查看。
相关问题
cmake Werror
CMake is a build system generator that allows you to define and configure your build process. When you specify `Werror` in CMake, it means that you want to treat all warnings as errors during the build process.
To enable treating warnings as errors in CMake, you can use the `CMAKE_C_FLAGS` or `CMAKE_CXX_FLAGS` variables. These variables allow you to specify additional compiler flags for the C and C++ languages, respectively.
Here's an example of how you can enable treating warnings as errors in CMake:
```cmake
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
```
This line will add the `-Werror` flag to the existing flags in `CMAKE_C_FLAGS`, which will make all warnings treated as errors during the compilation of C code.
Similarly, for C++ code, you can use the following line:
```cmake
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
```
By adding these lines to your CMakeLists.txt file, you will enable the `-Werror` flag and treat warnings as errors when building your project using CMake.
ild>cmake -
以下是回答和介绍:
cmake是一个跨平台的开源软件,用于管理C++软件项目的构建过程。它使用简单的配置文件来控制构建过程的生成,从而使开发人员能够在不同的操作系统和编译器之间轻松地重复构建过程。要使用cmake,您需要编写一个名为CMakeLists.txt的配置文件,该文件描述了项目的源代码,依赖项,编译器选项和其他构建参数。有关更详细的信息,请参阅cmake文档。
在命令行中运行cmake -?将显示cmake的命令行选项。这些选项包括:
```
Usage: cmake [options] <path-to-source>
Options:
-H <dir> Set the source directory.
-B <dir> Set the build directory.
-G <generator> Generate a native build system.
-T <toolset> Set the toolset to use in the generated build system.
-A <architecture> Set the architecture to build for in the generated build system.
-N <name=value> Set a CMake variable.
-D <var>[:<type>][=<value>] Set a CMake cache entry.
-U <globbing_expr> Remove matching entries from CMake cache.
-C <initial-cache> Pre-load a script to populate the cache.
-L[A][H] List non-advanced cached variables.
-LA[H] List all cached variables.
-U <globbing_expr> Remove matching entries from CMake cache.
--build <dir> Build a CMake-generated project binary tree.
--install <dir> Build and then install a project.
--version Report CMake version number.
--help Print usage information and exit.
```