I think Ralph is a little confused -- 2.1.3 is recent enough. :-) Are you using "mpic++" to compile your application? That should add in all the relevant flags that are needed to compile an Open MPI C++ application.
> On Jun 22, 2018, at 3:29 PM, r...@open-mpi.org wrote: > > OMPI 2.1.3??? Is there any way you could update to something more recent? > >> On Jun 22, 2018, at 12:28 PM, lille stor <lille.s...@gmx.com> wrote: >> >> Hi, >> >> >> When compiling a C++ source file named test.cpp that needs a shared library >> named libUtils.so (which in its turn needs Open MPI shared library, hence >> the parameter -Wl,-rpath-link,/home/dummy/openmpi/build/lib ) as follows: >> >> g++ test.cpp -lUtils -Wl,-rpath-link,/home/dummy/openmpi/build/lib >> An error is thrown /home/dummy/openmpi/build/lib/libopen-pal.so.20: >> undefined reference to pthread_atfork. >> >> I passed -pthread and -lpthread (before and after -lUtils) to g++ but none >> of these solved the error. >> >> >> Environment where this error is thrown: >> >> OS: Ubuntu 14.04 >> Compiler: g++ 4.9 >> MPI: Open MPI 2.1.3 >> >> Thank you for your help, >> >> L. >> >> >> _______________________________________________ >> devel mailing list >> firstname.lastname@example.org >> https://lists.open-mpi.org/mailman/listinfo/devel > > _______________________________________________ > devel mailing list > email@example.com > https://lists.open-mpi.org/mailman/listinfo/devel -- Jeff Squyres jsquy...@cisco.com _______________________________________________ devel mailing list firstname.lastname@example.org https://lists.open-mpi.org/mailman/listinfo/devel