Guile 1.8.6 can open /dev/urandom (which I use for seeding a random
number generator):

% guile
guile> (open-input-file "/dev/urandom")
#<input: /dev/urandom 9>
guile> 

But guile 2.0.0 gives this error:

~/Documents/guile-2.0.0/meta/guile
GNU Guile 2.0.0
Copyright (C) 1995-2011 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guile-user)> (open-input-file "/dev/urandom")
ERROR: In procedure open-file:
ERROR: In procedure fport_end_input: Invalid argument

Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue.
scheme@(guile-user) [1]>  ,bt
           0 (open-file "/dev/urandom" "r")
scheme@(guile-user) [1]> 


-- 
                        Martin

STRL Reader in Software Engineering and Royal Society Industry Fellow
[email protected]  http://www.cse.dmu.ac.uk/~mward/  Erdos number: 4
G.K.Chesterton web site: http://www.cse.dmu.ac.uk/~mward/gkc/
Mirrors:  http://www.gkc.org.uk  and  http://www.gkc.org.uk/gkc

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