Bus Error on OS X PPC (gprolog 1.3.0 from darwinports)

(gdb) run
Starting program: /opt/local/bin/gprolog
Reading symbols for shared libraries . done
GNU Prolog 1.3.0
By Daniel Diaz
Copyright (C) 1999-2007 Daniel Diaz
| ?- [user].
compiling user for byte code...
bahnhof(coburg).
bahnhof(erlangen).
bahnhof(muenchen).
bahnhof(wuerzburg).
bahnhof(lichtenfels).
bahnhof(sonneberg).
bahnhof(bamberg).
bahnhof(nuernberg).
verbindung(A,A).
verbindung(A, Z) :- zug(A,T), verbindung(T,Z).
zug(coburg,lichtenfels).
zug(lichtenfels,coburg).
zug(lichtenfels,bamberg).
zug(bamberg,lichtenfels).

user compiled, 15 lines read - 1556 bytes written, 7126 ms

(6 ms) yes
| ?- verbindung(coburg,bamberg).

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x0320b018
0x000afed0 in Create_Choice_Point ()
(gdb) backtrace
#0  0x000afed0 in Create_Choice_Point ()
#1  0x0008e17c in Scan_Dynamic_Pred ()
#2  0x000926b0 in BC_Emulate_Cont_0 ()
#3  0x000817b8 in X2462635F656D756C6174655F636F6E74_0 ()
#4  0x000ada64 in Call_Next ()
#5  0x000adb80 in Call_Prolog ()
#6  0x00003524 in Main_Wrapper ()
#7  0x0000356c in main ()