My attempt here is to have a set of Makefiles that will build any STM32 Library set under GCC using Linux. It's not perfect but it builds quite a bit of projects. It ...

Makefile 就是管理这些编译规则的"施工图纸"。 你告诉 make 工具：目标文件是什么、依赖哪些源文件、用什么命令生成。 make 自动判断哪些文件需要重新编译，只编译有变动的部分。 想象你是一个建筑工头。