windows build failure

[Sean Sieger]

rm oo/i386/lastfile.a
rm: cannot remove `oo/i386/lastfile.a': No such file or directory
make[2]: [oo/i386/lastfile.a] Error 1 (ignored)
ar -rsc oo/i386/lastfile.a oo/i386/lastfile.o
gcc -I. -c -gdwarf-2 -g3  -DEMACSDEBUG -DENABLE_CHECKING -DXASSERTS -fno-crossju
mping  -Ic:/imagesupport/include -Demacs=1 -DHAVE_CONFIG_H -I../nt/inc -DHAVE_NT
GUI=1 -DUSE_CRT_DLL=1 -DPURESIZE=5000000 -o oo/i386/firstfile.o firstfile.c
windres -O coff --include-dir ../nt -o oo/i386/emacs.res ../nt/emacs.rc
gcc -o oo/i386/temacs.bin  -gdwarf-2 -g3    -Wl,-stack,0x00800000 -Wl,-heap,0x00
100000 -Wl,-image-base,0x01000000 -Wl,-subsystem,console -Wl,-entry,__start -Wl,
-Map,oo/i386/temacs.map oo/i386/firstfile.o oo/i386/emacs.res oo/i386/temacs0.a
oo/i386/temacs1.a oo/i386/temacs2.a oo/i386/lastfile.a -lwinmm -ladvapi32 -lgdi3
2 -lcomdlg32 -luser32 -lmpr -lshell32 -lwinspool -lole32 -lcomctl32 -lusp10
oo/i386/temacs2.a(image.o): In function `my_png_error':
c:\emacs-24.0.50\src/image.c:5547: undefined reference to `png_set_longjmp_fn'
oo/i386/temacs2.a(image.o): In function `png_load':
c:\emacs-24.0.50\src/image.c:5709: undefined reference to `png_set_longjmp_fn'
collect2: ld returned 1 exit status

I'll look at the patch in the meanwhile ...