bash core dump on amd64

I ended up compiling gdb from cvs in order to get a version I could work
with and got a trace from my bash core dump when I try to resize a
gnome-terminal window:

(gdb) bt
#0  0x00000002016ffab3 in sigaction () from /usr/lib/libpthread.so.1
#1  0x00000002006ae9b0 in _rl_savestring () from /lib/libreadline.so.4
#2  <signal handler called>
#3  0x0000000200a822ec in read () from /lib/libc.so.5
#4  0x00000002006ab113 in rl_getc () from /lib/libreadline.so.4
#5  0x00000002006ab0c9 in rl_read_key () from /lib/libreadline.so.4
#6  0x00000002006bdeb7 in readline_internal_char () from
/lib/libreadline.so.4
#7  0x00000002006be045 in readline_internal_char () from
/lib/libreadline.so.4
#8  0x00000002006be060 in readline_internal_char () from
/lib/libreadline.so.4
#9  0x00000002006bdc1e in readline () from /lib/libreadline.so.4
#10 0x0000000000415072 in yy_input_name ()
#11 0x0000000000414fde in yy_input_name ()
#12 0x0000000000415885 in read_secondary_line ()
#13 0x000000000041633e in reset_parser ()
#14 0x0000000000415e22 in execute_prompt_command ()
#15 0x0000000000413b1a in yyparse ()
#16 0x00000000004138ab in parse_command ()
#17 0x000000000041395b in read_command ()
#18 0x0000000000413701 in reader_loop ()
#19 0x0000000000411e8d in main ()

It would appear that because I use nss_ldap the pthread library is
getting involved for a signal handler.  Not sure if this is the issue,
but the end result is that resize causes core dump of bash.

Cheers,
Sean