如何告诉gcc在头文件的include文件夹中查找? [英] How to tell the gcc to look in the include folder for the header files?

问题描述

我正在使用c.我的项目myProject/include中有一个include文件夹，内部有我从Internet下载的SDK中的所有头文件.所以我的问题是如何告诉gcc在include文件夹中查找头文件?

I'm using c. And I have a include folder inside my project myProject/include and inside I have all the header files from the SDK I downloaded from the Internet. So my question is how can I tell the gcc to look for the header files inside the include folder?

推荐答案

您可以将-I选项与gcc一起使用，以告诉路径在哪里查找头文件.

You can use the -I option with gcc to tell the path where to look for the header files.

从在线gcc手册

-Idir

将目录dir添加到要搜索头文件的目录列表的开头.因为这些目录是在系统头文件目录之前搜索的，所以可以用来替代您自己的版本来覆盖系统头文件. [...]

-Idir

Add the directory dir to the head of the list of directories to be searched for header files. This can be used to override a system header file, substituting your own version, since these directories are searched before the system header file directories. [...]

您可以多次使用此选项，

You can use this option multiple times,

[...]如果使用多个-I选项，则将按从左到右的顺序扫描目录；否则，将按照从左到右的顺序扫描目录.标准系统目录随之出现.

[...] If you use more than one -I option, the directories are scanned in left-to-right order; the standard system directories come after.

这篇关于如何告诉gcc在头文件的include文件夹中查找?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！