Current head doesn't bootstrap

[Kai Grossjohann <kai@emptydomain.de>]

I've been running my usual start-from-scratch script for building
Emacs, and it barfs here:

gcc -nostdlib `./prefix-args -Xlinker  -L/usr/local/lib -znocombreloc` -L/usr/X11R6/lib -o temacs pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o dispnew.o frame.o scroll.o xdisp.o xmenu.o window.o charset.o coding.o category.o ccl.o cm.o term.o xfaces.o xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o gtkutil.o emacs.o keyboard.o macros.o keymap.o sysdep.o buffer.o filelock.o insdel.o marker.o minibuf.o fileio.o dired.o filemode.o cmds.o casetab.o casefiddle.o indent.o search.o regex.o undo.o alloc.o data.o doc.o editfns.o callint.o eval.o floatfns.o fns.o print.o lread.o abbrev.o syntax.o unexelf.o bytecode.o process.o callproc.o region-cache.o sound.o atimer.o doprnt.o strftime.o intervals.o textprop.o composite.o md5.o   terminfo.o lastfile.o gmalloc.o  vm-limit.o   mktime.o    -L/usr/X11R6/lib -Wl,--export-dynamic -L/usr/local/lib -L/usr/X11R6/lib -lgtk-x11-2.0 -lgdk-x11-2.0 -lXrandr -lXi -lXinerama -latk-1.0 -lgdk_pixbuf-2.0 -lm -lpangoxft-1.0 -lXft -lfreetype -lz -lXrender -lXext -lfontconfig -lpangox-1.0 -lX11 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -liconv -lSM -lICE -ltiff -ljpeg -lpng -lz -lm -lungif -lXpm -lX11  -lutil -lncurses   -lm -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
xfns.o: In function `xg_set_icon':
/home/kai/work/gnu/emacs/src/xfns.c:780: undefined reference to `x_find_image_file'
*** Error code 1

Stop in /home/kai/work/gnu/emacs/src.

I've tried to look in src/Makefile.in, but that code is beyond my
abilities.

Kai

PS: "Start from scratch" means that I do "make distclean" first, then
autoconf, then configure, then "make bootstrap".