I've never seen the -D_POSIX_PTHREAD_SEMANTICS before. What caused you to need to define that flag?
Also...what hardware (cpu) and operating system (linux? what distro? what version?) are you using? Matt Z. -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. Can't post? Read http://www.gromacs.org/Support/Mailing_Lists