openmpi-1.6.4-alt2 includes libmpi_cxx.so.1, but it is said to be deprecated (by libmpi) -- https://cmake.org/pipermail/cmake/2013-September/055712.html . If it is true, programs shouldn't link with it (and cmake must do this automatically already). Why not move it to a subpackage (-compat), try to delete it from Sisyphus, and detect programs that should be rebuilt.
Old libraries linked with libmpi_cxx (e.g., petsc) cause build problems when building other new libraries which depend on petsc (because it is checked that they shouldn't link with libmpi_cxx).
Other quotations w.r.t. the deprecated status of linking with -lmpi_cxx : http://hdf-forum.184993.n3.nabble.com/parallel-HDF5-H5Fclose-hangs-when-not-using-a-power-of-2-number-of-processes-td4027831.html : ( on my system, for some strange reason, MPI has been compiled with the deprecated C++ bindings. I need to include -lmpi_cxx also, but that shouldn't be necessary for anyone else. I hope that's not the reason for the hang-ups. ) http://stackoverflow.com/a/12711785 : Though I am not able to reproduce the problem you encountered, the following comments can be found in mpi.h, from which mpicxx.h is included: /* * Conditional MPI 2 C++ bindings support. Include if: * - The user does not explicitly request us to skip it (when a C++ compiler * is used to compile C code). * - We want C++ bindings support * - We are not building OMPI itself * - We are using a C++ compiler */ #if !defined(OMPI_SKIP_MPICXX) && OMPI_WANT_CXX_BINDINGS && !OMPI_BUILDING #if defined(__cplusplus) || defined(c_plusplus) up vote 1 down #include "openmpi/ompi/mpi/cxx/mpicxx.h" vote #endif #endif If you are not using the deprecated C++ bindings, then a possible workaround is to add -DOMPI_SKIP_MPICXX to your CXXFLAGS. Hope this may help.
http://stackoverflow.com/q/11919822 : > keep in mind that the MPI C++ interface is deprecated in MPI 2.2 and will be dropped completely from MPI 3.0. – Hristo Iliev Aug 13 '12 at 7:40 These mentioned versions look much greater than ours, though (openmpi-1.6.4-alt2).
Plan to add 1.10.x into Sisyphus. Do you really need 1.6 version?
(In reply to comment #4) > Plan to add 1.10.x into Sisyphus. > Do you really need 1.6 version? Our interest is simple: If petsc can be rebuilt with it, and it won't be linked with libmpi_cxx.so , then it's great! Because if something is linked with the deprecated libmpi_cxx.so, it leads to problems with building other dependent packages. (cas@ knows such a case.)
Added openmpi 1.6.4 compat package. Subpackage 'openmpi-lib-compat' contains links to 1.6.4 libraries for backward compatibility. In newer OpenMPI versions soname has been changed.
