CMake 可以生成配置文件吗? [英] Can CMake generate a configure file?
问题描述
我需要将配置文件从 C++ 转换为 JS，我正在尝试在项目中使用 emscripten.Emscripten 自带一个叫做 emconfigure 的工具，它取代了 autoconf 配置，
I need the configure file to transpile from C++ to JS, I'm trying to use emscripten in a project. Emscripten comes with a tool called emconfigure, that replaces the autoconf configure,
但是我正在构建的项目使用 cmake 作为构建系统，目前(1 月 12 日)emscripten 仅支持 autoconf - 所以我通过生成配置并在 make 上做一个端口来绕过它，所以有一个从 cmake 创建配置文件的方法?我不是在谈论 make 文件……而是在谈论配置文件本身.
But the project I'm building uses cmake as build system and currently (Jan-12) emscripten has only support for autoconf - so I'm bypassing it by generating the configure and doing a port on the make, so there a way to create the configure file from the cmake ?? I'm not talking about the make files.. but the configure file itself.
推荐答案
是的，它可以:
configure_file(<input> <output>
[COPYONLY] [ESCAPE_QUOTES] [@ONLY]
[NEWLINE_STYLE [UNIX|DOS|WIN32|LF|CRLF] ])
示例.h.in
#ifndef EXAMPLE_H
#define EXAMPLE_H
/*
* These values are automatically set according to their cmake variables.
*/
#define EXAMPLE "${EXAMPLE}"
#define VERSION "${VERSION}"
#define NUMBER ${NUMBER}
#endif /* EXAMPLE_H */
在您的 cmake 文件中:
set(EXAMPLE "This is an example")
set(VERSION "1.0")
set(NUMBER 3)
configure_file(Example.h.in Example.h)
配置的Example.h:
#ifndef EXAMPLE_H
#define EXAMPLE_H
/*
* These values are automatically set according to their cmake variables.
*/
#define EXAMPLE "This is an example"
#define VERSION "1.0"
#define NUMBER 3
#endif /* EXAMPLE_H */
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