gconf-editor runtime error

Greetings all. Just built gconf-editor 2.14.0 on a DIY PPC box. Opening 
and browsing gconf-editor is trouble-free but I went to change the 
address bar back to "normal" for Nautilus and gconf-editor locks up on 
me. Output on the terminal is:

*** glibc detected *** free(): invalid next size (fast): 0x10170d70 ***

Then I have to kill it. Using:

glibc-2.3.6
gcc-3.4.6
linux-libc-headers-2.6.12.0

compile options:
./configure --prefix=/usr \
    --localstatedir=/var/lib \
    --sysconfdir=/etc/gnome

Nothing extraordinary... Any ideas what's happening? Thanks much.

Jon