Which thread library should I use for multithreaded C programs on Linux?

I've done threads in Java, but I'm a complete noob to threads in C. My first question, after googling some, is: Which thread library do I use? Does it matter? It seems I have thread.h and pthread.h to choose 开发者_JS百科from.

OS is, and will be, Linux. More specifically, it's Ubuntu at the moment and will either stay like that, or become RHEL. But I guess the distro doesn't matter?

The POSIX thread libraries (pthread.h) are a standards based thread API for C/C++ and is what I would use. There are also several tutorials available such as this one or this one.

I will admit that I am not familiar with thread.h.

The standard thread interface on POSIX systems such as linux is pthread, for POSIX thread.