> For the complete documentation index, see [llms.txt](https://emacs-lisp.ivory.cafe/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emacs-lisp.ivory.cafe/han-shu/13.15-gao-zhi-bian-yi-qi-mou-han-shu-yi-ding-yi.md).

# 13.15 告知编译器某函数已定义