BTXMAKE
     =======

        This program makes a b+tree file from the SEEDIS style DDF or

     EDF files for use in the SEEDIS programs.  The resultant output

     file, which has the extension *.btx, replaces the DDX or EDX file

     and has the advantage of speedier look-up in those programs using

     data definition files.  The BTX file does not have data stored in

     it but rather points to records in the DDF/EDF files.



     The program resides in sy$seedis:[seedis.btree].  

     Upon exection, the program will ask for the input file.  The full

     name must be given, i.e., the device, directory and name.  If the

     EDF or DDF file is moved to some other location, the program

     sy$seedis:[seedis.btree]btxmod may be run to change the name in

     the BTX file record index.  This is a 'MUST' as the seedis programs

     use the file name in the record index to open and read the EDF or

     DDF files.  It is also necessary to re_make the BTX file if the

     EDF or DDF file is modified in any way.


     After making the b+tree file, it may be looked at by executing 

         sy$seedis:[seedis.btree]bt_look.exe.