inexact->exact in 1.7.1

[Rick Taube]

this behavior of inexact->exact in guile 1.7.1 causes my program to 
become confused:

guile> (inexact->exact 48.0)
48
guile> (inexact->exact (* .1 480.0))
48
guile> (inexact->exact (* (- 1.1 1) 480.0))
3377699720527875/70368744177664

guile>(quit)
$ uname -a
Darwin pinhead.music.uiuc.edu 7.8.0 Darwin Kernel Version 7.8.0: Wed 
Dec 22 14:26:17 PST 2004; root:xnu/xnu-517.11.1.obj~1/RELEASE_PPC  
Power Macintosh powerpc


-rick


i attempted to see if guile 1.7.2 fixes this but it doesnt build on 
darwin. perhaps someone could tell me