This version of 'gaspan' runs under UNIX with
X-Windows. The window from which gaspan is started 
should be able to handle vt100 escape modes,
xterm will be okay.

In order to compile 'gaspan' you need a FORTRAN
Compiler and a C-Compiler.

1. edit file 'gascdc.h': In line 33 you will find
   the variable  '*helpfilepfad[]' which should
   be modified according to the location of the file
   'gaspan.hlp' which is part of this contribution.
   You may specify  as many paths as you like
   but the last path must be an empty string.

2. edit 'Makefile': 'Makefile' contains preset compiler
   options for 
   a) SGI machines under IRIX 6.x with at least a R4000 processor
   b) HP machines under HPUX 9.x and 10.x
   c) PCs under linux with g77 and gcc
   Just uncommend your system.

   Of course any other system will do it but the Fortran
   compiler must recognize VAX-extensions (do ... enddo,
   do while ... enddo, etc, most of modern FORTRAN compilers
   will do this) and must generate one underscore after function- 
   and subroutine names. Again, most of the FORTRAN compiler
   will do this automatically, others have options for this.

3. compile and load by typing `make gaspan`

4. Edit Xgraflibf.c if you like to change the window size in xgaspan:
   Change the arguments in the call of set_window_size(1.0,0.7);
   The arguments of this routine gives the window size of the
   x and y coordinates in units of the screen size.

If the path for 'gaspan.hlp' has been set correctly, you can
obtain online help with the command `help` or `help topic`

Note: 'gaspan' generates files in the directory you are
running it therefore you must have write permission for this
directory.

You can test gaspan by running the shell procedure gtestsuite in 
testsuite.tar.gz

F. Riess
email: friedrich.riess@physik.uni-muenchen.de

