Since I updated my port graphics/png with portupgrade -fr graphics/png  like mentioned in $PORTSDIR/UPDATING  I cannot compile editors/emacs:


cc -nostdlib `./prefix-args -Xlinker  -L/usr/local/lib -znocombreloc` -L/usr/local/lib -lintl -Wl,-znocombreloc -L/usr/local/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 menu.o xmenu.o window.o charset.o coding.o category.o ccl.o character.o chartab.o cm.o term.o terminal.o xfaces.o xterm.o xfns.o xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o gtkutil.o dbusbind.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 font.o print.o lread.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    xfont.o ftfont.o xftfont.o ftxfont.o terminfo.o lastfile.o gmalloc.o  vm-limit.o      -L/usr/local/lib -pthread -L/usr/local/lib -
 lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lgio-2.0 -lXext -lXrender -lXinerama -lXi -lXrandr -lXcursor -lXcomposite -lXdamage -lpangoft2-1.0 -lXfixes -lcairo -lX11 -lpango-1.0 -lm -lfreetype -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lpthread -lSM -lICE -ltiff -ljpeg -lpng -lz -lm -lungif -lXpm -lX11 -L/usr/local/lib -lXft -lXrender -lfontconfig -lfreetype -lX11  -pthread -L/usr/local/lib -lrsvg-2 -lgdk_pixbuf-2.0 -lm -lcairo -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -pthread -L/usr/local/lib -ldbus-1 -lutil -lncurses  -L/usr/local/lib -lz -lotf -lfreetype -L/usr/local/lib -lm17n-flt -lm17n-core  -lm -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
image.o(.text+0x65d3): In function `png_load':
: undefined reference to `png_check_sig'
image.o(.text+0x6c01): In function `png_load':
: undefined reference to `png_check_sig'
gmake[1]: *** [temacs] Error 1
gmake[1]: Leaving directory `/usr/ports/editors/emacs/work/emacs-23.1/src'
gmake: *** [src] Error 2
*** Error code 1

Stop in /usr/ports/editors/emacs.
*** Error code 1

Stop in /usr/ports/editors/emacs.
** Command failed [exit code 1]: /usr/bin/script -qa /tmp/portupgrade20100329-51433-2juqds-0 env UPGRADE_TOOL=portupgrade UPGRADE_PORT=emacs-23.1_3,1 UPGRADE_PORT_VER=23.1_3,1 make
** Fix the problem and try again.
** Listing the failed packages (-:ignored / *:skipped / !:failed)
        ! editors/emacs (emacs-23.1_3,1)        (linker error)

How-To-Repeat: cd /usr/ports/editors/emacs ; make