Hello, I am trying to write a config.ac script that will select between using a regular C++ compiler or an MPI C++ compiler. I have something like:
if [ test "x$with_mpi" = "xno"]; then AC_PROG_CXX else AX_PROG_CXX_MPI fi Later on I check for C++11 support, and then regular build succeeds but the MPI build fails. However, if I change the order of the if statement above, then the MPI build succeeds but the regular build fails (or using the mpi++ compiler even though it should not be set). I am no bash scripting expert, but I am surprised the logic needs to be more complicated than this? I also tried using AS_IF instead, with similar results. TIA for any helpful hints. Matt
