Identifying which Linux system library contains a function

Question

I am using a dev system where I have to specify the lib name when accessing a function inside it.

I\'ve used functions like open() before, and somehow found out that

Answer 1

lstat is in libc, and libc is linked in by default. You don't need to do anything to use lstat besides including the header file for it #include

man pages usually state which library they are in.