如何递归列出源文件或头文件包含的所有 C++ 头文件

使用 C 预处理器列出包含：

gcc_includes_cmd.sh

gcc -E -M myfile.c

gcc -E -M myfile.c

输出如下：

gcc_includes_output.txt

myfile.o: myfile.c header1.h /usr/include/stdio.h /usr/include/stdlib.h

myfile.o: myfile.c header1.h /usr/include/stdio.h /usr/include/stdlib.h

对于递归列出，使用 -M 或 -MM 选项。你也可以编写小脚本将输出解析为列表。

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