c/c ++:找不到头文件 [英] c/c++ : header file not found

问题描述

一些头文件存在于/src/dir1/中(例如: ah ， bh ， ch 等等).我的源文件位于/src/dir2/file.cpp 中.我使用了/src/dir1/中存在的一些头文件，但是在编译过程中出现了类似 header file not 的错误.

Some header files are present in /src/dir1/ (eg: a.h, b.h, c.h etc). My source file is present in /src/dir2/file.cpp. I used some header files that are present in /src/dir1/ but during compilation I got errors like header file not found.

然后我更改了包含路径，例如 #include"../src/dir1/ah" ，然后 file.cpp 中的错误消失了，但是我得到了/src/dir1 中存在的头文件中的> not found 错误.因为我包含了标有 ah 的头文件，所以该 ah 包含了/src/dir1/中存在的其他一些头文件(例如> 和 ch 出现在 ah 中.)

Then I changed the include path like #include "../src/dir1/a.h", then error is gone in file.cpp but I get not found error in the headers files that are present in /src/dir1. Because I included the header file say a.h, that a.h included some other header files that are present in /src/dir1/ (say b.h and c.h present in a.h).

如何在/src/dir2/file.cpp 中添加头文件( ah )，以便它不要求修改头文件中的包含路径出现在/src/dir1/中?

How to add the header file (a.h) in /src/dir2/file.cpp so that it should not ask to modify the include path in the header files that are present in /src/dir1/?

注意:我正在使用 scons 进行构建.

Note: I am using scons to build.

推荐答案

您可以使用 gcc 的 -I 命令行参数将目录添加到包含文件搜索路径中:

You can add directories to the include file search path using the -I command line parameter of gcc:

gcc -I/src/dir1 file.cpp

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