c - 如何用静态库编译gcc？

Question

我有静态库 lib.a 并且在所有教程中都使用:

gcc -o main main.o -L. -lib

但是我不能，我有错误:

    /usr/bin/ld: cannot find -lib
collect2: error: ld returned 1 exit status

我需要使用:

gcc -o main main.o -L. -lib.a

为什么？我应该怎么做才能修复它？

Answer 1

来自 gcc -l 的文档:

-llibrary:

The linker searches a standard list of directories for the library, which is actually a file named liblibrary.a. The linker then uses this file as if it had been specified precisely by name.

...

The only difference between using an -l option and specifying a file name is that -l surrounds library with ‘lib’ and ‘.a’ and searches several directories.

因此您不能将 -l 与名为“lib.a”的库一起使用。使用不带 -l 的“lib.a”来包含它。当然，您不能使用 -L 然后设置要搜索该特定库的目录。