Linux上的可执行文件如何知道从何处获取数据文件？(How do executables on Linux know where to get data files?)

Linux上的可执行文件如何知道从何处获取数据文件？(How do executables on Linux know where to get data files?)

Linux上的程序将程序的数据安装到$PREFIX/share/programname ，程序如何知道它在哪里，是否需要编译？

是否适合假设二进制文件位于$PREFIX/bin ，并使用它来确定$PREFIX ？

这只需要在Linux上工作，具体来说，我使用的是C.

Programs on Linux install data for programs into $PREFIX/share/programname, how does the program know where that is, does it need to be compiled in?

Would it be suitable to assume that the binary is in $PREFIX/bin, and use that to determine $PREFIX?

This only needs to work on Linux, and specifically, I am using C.

最满意答案

这完全取决于该计划。 常见的模式是将PREFIX定义为预处理程序指令。 GNU autoconf具有标准名称，允许在配置时覆盖它们。

It depends entirely on the program. A common pattern is to define PREFIX as a preprocessor directive. GNU autoconf has standard names and allows them to be overridden at configure time.