Changes from Version edited by Vince:

Created Makefile.

unpack.c : No changes. Looks good. Thats was a good idea to provide
           this. Needs a little documentation maybe.

renamed subroutine in freadpathP.f to the same name.

renamed sample_readpathP.f sample_readpathP_f.f 
renamed sample_readpathP.c sample_readpathP_c.f  

This makes it easier to create separate targets in the Makefile.

sample_readpathP_f.f:

  Defined RSIZE variable to indicated record length. Users
  have to edit this variable depending on the machine they
  are using. On SUN's and HP's we need to specify the 
  record length for unformatted IO to the recordlength in 
  bytes. Other machines (DEC, SGI I believe) want the record
  length in longwords (4 bytes). This needs to be documented
  somewhere in Release Notes.

  changed hard-coded input file name to sample.hdf.

sample_readpathP_c.f:

  Maybe we don't even need this anymore. But maybe yes. While the
  unpack function is something users should be able to use without
  editing, the sample_readpathP_X programs are truely only meant
  to be examples. Unpack and sample_readpath_x may diverge at some
  point (What do you think ? )

Things to do:
  The unpack function should really check if the *.exhdf files are 
  in the current working directory and report an error if they 
  aren't. That's an easy trap to fall into, so I think that would
  be a good idea. Vince can you add this?
  

Axel 960212


Axel 960912:
  sample_readpathP_f.f would blow up under Solaris 2.5. Fixed 
  call to sfgainfo (not really needed) :

      ret = sfgainfo(hdf_id,index,attr_name, number_type,
     &               length)

  Since the variable attribute_name is passed as a fixed string
  and sfgainfo expects returns data using attribute_name instead
  of attr_name doesn't work. Created new variable character*64 
  in which attr_name is returned.
  

Axel: 960913
  Fixed Makefile to work for HP, SunOS and Solaris versions.
  

Axel: 960925
  Changed readpathP.pro to resolve functions included in this
  routine. It is necessary to .run readpathP to get it working
  still or else break the program into subprograms.