关于 Makefile 中的深层头文件

Question

假设我有一个包含在许多源文件中的头文件，可能具有非常深的层次结构。在每个源对象的先决条件中列出这个通用头文件很无聊，不确定是否有优雅的解决方案。谢谢！

Answer 1

您可以使用gcc -M 生成此类依赖项。来自TFM：

-M Instead of outputting the result of preprocessing, output a rule suitable for make describing the dependencies of the main source file. The preprocessor outputs one make rule containing the object file name for that source file, a colon, and the names of all the included files, including those coming from -include or -imacros command line options.

另见Generating Prerequisites Automatically。