Source : Free On-Line Dictionary of Computing

GDB
     
        {GNU} debugger.  The {FSF}'s {symbolic debugger} for {C},
        {C++} and other languages.  Developed by many people but most
        recently Fred Fish , Stu Grossman
         and John Gilmore  all of
        {Cygnus} Support.  GDB fills the same niche as {dbx}.
        Programs must be compiled to include debugging symbols.
     
        Version 4.11.  Distributed under {GNU} {CopyLeft}.  It runs on
        most {Unix} variants, {VMS}, {VXWorks}, {Amiga} and {MS-DOS}.
     
        FTP gdb-*.tar.[zZ] from a {GNU archive site}.
        E-mail:  (bug reports).
     
        (1993-10-29)