The gd export package comprises main and auxiliary executables,
documentation and examples. It can be obtained from  
GSI's ftp server or from
here.


The package is organized and installed as follows.

UNIX Systems

Available as a tar'ed and compressed archive 
Contents:

README.unix           this text.

    HELP/             documentation in HTML format.

     BIN/             executables:
         GD           gd executable 
         gd           Shell script to call different gd versions. 
                      Recommended for starting gd

         fitfct       Shell script to compile and link user function
EXAMPLES/             examples
         fitusr.h     header file for user fit function
         usrfct.c     sample user function
         ...          example files


It is recommended to keep all gd-related files in a single directory GD apart from the root file system. 
To install: 

   mkdir GD
   cd GD
   uncompress GD.xxxx.tar.Z
   tar -xvf GD.xxxx.tar

Then place the following three lines in your user profile 
in order two allow the gd commands to be executed:

   export PATH=~/GD/BIN:$PATH
   export GDDOC=~/GD/HELP
   export GDTUT=~/GD/EXAMPLES 


The shell script gd suggests a scheme 
how to handle different versions of the program:

   gd old     old version 
   gd pro     production version
   gd new     new version

Moreover, it also sets the necessary LD_LIBRARY_PATH which is needed for
the dynamic loading of external user fit functions.


Amiga Systems

Available as a self-extracting LhA archive (you'll need the LhA shareware, e.g. from Aminet).
Contents:

README.amiga          this text.

    HELP/             documentation in AmigaGuide and HTML format.

       C/             executables:
         GD030881     gd  for use with 68020/68881,68030/68882,68040,68060 systems.
                         It won't run on non-FPU systems.

         GD000FFP     gd  for use with the FFP math libraries. Suited for non-FPU systems.
                         Limited to numbers 1E-19..1E+19 and 6 digits precision.

         GD000IEEE    gd  for use with the IEEE math libraries. Suited for non-FPU systems.
                         Limited to numbers 1E-308..1E+308 and 16 digits precision.

         gd           Shell script to call different gd versions. 
                      Recommended for starting gd

         whichcpu     Auxiliary program needed by gd
         whichfpu     Auxiliary program needed by gd
         fitfct.rexx  ReXX procedure to compile and link user function

    LIBS/             shared libraries

EXAMPLES/             examples
         fitusr.h     header file for user fit function
         usrfct.c     sample user function
         ...          example files


It is recommended to keep all gd-related files in a single directory GD apart
from the system partition.
To install: 

   makedir GD
   cd GD
   GD.amiga.run

Then place the following three lines in the file S:user-startup
in order two allow the gd commands to be executed:

   path   C:      GD/C     add
   assign GDLIBS: GD/LIBS
   assign GDDOC:  GD/HELP
   setenv GDDOC   GD/HELP
   assign GDTUT:  GD/EXAMPLES 
   setenv GDTUT   GD/EXAMPLES 
   path   REXX:   GD/C     add  


The shell script gd suggests a scheme 
how to handle different versions of the program.

   gd old     old version 
   gd pro     production version
   gd new     new version
   gd 881     FPU version
   gd ffp     FFP version