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c++glibc

How do I determine which version of glibc supports the functions I use?

Some functions like pthread_setname_np, the manual will say that it was supported from glibc 2.12. But for some other functions, like pthread_self, the manual doesn't say which version it has been supported. How do I determine which version of glibc supports the functions I use ?

I tried to find information from glibc doc, but I can't find anything useful.

Solution

  • Notice the CONFORMING TO section in the documentation.

    A function like pthread_self is conforming to the POSIX standard, which means that it's probably going to be available in every version of glibc.

    pthread_setname_np Isn't defined in POSIX, but is a later addition to the library, so it says what version it's available from.

    AFAIK only functions that are not defined in POSIX were added in a late version of glibc, and it usually says in the docs what version they are available from.