The build is broken in glib -- libglib-2.0.so: undefined reference to `g_str_has_prefix'

This failure is occuring attempting to build a frech checkout
of glib:

make[2]: Entering directory `/gnome/head/cvs/glib/gobject'
/bin/sh ../libtool --mode=link gcc  -g -O2 -Wall -D_REENTRANT  -o
glib-genmarshal  glib-genmarshal.o ../glib/libglib-2.0.la
gcc -g -O2 -Wall -D_REENTRANT -o .libs/glib-genmarshal
glib-genmarshal.o  ../glib/.libs/libglib-2.0.so -Wl,--rpath
-Wl,/gnome/head/INSTALL/lib
../glib/.libs/libglib-2.0.so: undefined reference to `g_str_has_prefix'
../glib/.libs/libglib-2.0.so: undefined reference to `g_str_has_suffix'
collect2: ld returned 1 exit status