dbxtool uses 32 bit version of dbx instead of 64 bit version (linux)

4cb72285-47a5-43a4-aea7-a3207f7dd726

    When I start dbxtool from the command line via dbxtool "my_prog my_args", the GUI launches and a popup appears saying

     

    dbx: 32-bit dbx can't debug 64-bit app

     

    I installed developer studio 12.6 from the tar.bz2 file on Linux RHEL7 and added

    OracleDeveloperStudio12.6-linux-x86-bin/developerstudio12.6/bin

     

    to my path.

    Note that dbx -c "runargs my_args" my_prog starts just fine.

     

    I read that the workaround was to stop the originally launched dbx and reload the program which does indeed work but that is rather inconvenient and I would really like to get this working out of the box. Can someone help me on this? (Editing the startup scripts etc. would not be a problem for me)