Building sisc heaps ...

Dear schemers,

I'm trying to build a custom heap with sisc 1.16.5.

Is using the 'script'  build-heapjar.scm  the correct way to go?
I've linked srfi-22.sh as scheme-r5rs in my path and tried to generate 
the heap with

scheme-src/build-heapjar.scm foo.shp

The size of 'foo.shp' is much smaller than that of the heap bundled with 
sisc and when I try to run sisc with it I get:

Error loading heap!
java.io.UTFDataFormatException: malformed input around byte 9
	at java.io.DataInputStream.readUTF(DataInputStream.java:612)
	at java.io.DataInputStream.readUTF(DataInputStream.java:522)
	at sisc.ser.Library.load(Unknown Source)
	at sisc.interpreter.AppContext.loadEnv(Unknown Source)
	at sisc.interpreter.AppContext.addHeap(Unknown Source)
	at sisc.REPL.main(Unknown Source)


Any help would be really appreciated, thanks!

	Roberto


-- 
	<r/>

| Roberto Brunelli, Research Scientist
| TeV Group - ITC-irst
|
|  'You cannot manipulate a marionette with only one string'
|                    from Chapterhouse Dune,  by F. Herbert
         							



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