jpeg, png and tiff

[Farkas Levente]

hi,
what's the current setup with these image libraries? since i see there
is jpeg and png but not tiff for mingw although gtk use all of them. now
mingw32-gtk use mingw32-png or system png? are you sure about it?? from
the build log i see libtiff and libpng installed by some deps. is it
sure that mingw32-gtk do not use system libtiff?
i just come to that conclusion because gtk+ can't compile without
libtiff our --without-libtiff.