diff dumping core on netbsd-5

[John Klos <john%ziaspace.com@localhost>]

Any ideas? This is a NetBSD 5 system from sources from three days ago or 
so.

boobookitty: {5} gdb `which diff` diff.core
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This GDB was configured as "m68k--netbsdelf"...(no debugging symbols found)

Reading symbols from /usr/lib/libc.so.12...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libc.so.12
Reading symbols from /usr/libexec/ld.elf_so...(no debugging symbols 
found)...done.
Loaded symbols for /usr/libexec/ld.elf_so

Core was generated by `diff'.
Program terminated with signal 11, Segmentation fault.
#0  0x040f0d9c in memcpy () from /usr/lib/libc.so.12
(gdb) bt
#0  0x040f0d9c in memcpy () from /usr/lib/libc.so.12
#1  0x040b12dc in realloc () from /usr/lib/libc.so.12
#2  0x00012336 in xrealloc ()
#3  0x00008bb4 in slurp ()
#4  0x00008cee in read_files ()
#5  0x0000419e in diff_2_files ()
#6  0x0000661a in compare_files ()
#7  0x000076bc in main ()