Force GCC to static-link e.g. pthreads (and not dynamic link)

Question

My program is built as a loader and many modules which are shared libraries. Now one of those libraries uses pthreads and it seems its bound to the module dynamically (loaded on

Answer 1

While linking libpthread.a into a shared library is theoretically possible, it is a really bad idea. The reason is that libpthread is part of glibc, and all parts of glibc must match exactly, or you'll see strange and un-explainable crashes.

So linking libpthread.a into your shared library will:

1. Cause your program to crash when moved to a machine with a different version of glibc
2. Cause your existing program to crash when your current machine's glibc is upgraded, but your module is not re-linked against updated libpthread.a.

Spare yourself aggravation, and don't do that.