Man pages matching name globus_thread_rmutex.h in section 3:

globus_thread_rmutex.h.3.en	debian 10 / libglobus-common-doc
globus_thread_rmutex.h.3.en	debian 11 / libglobus-common-doc
globus_thread_rmutex.h.3.en	debian 12 / libglobus-common-doc