On Apr 4, 2008, at 19:39, Rainer Müller wrote:
Joerg van den Hoff wrote:
standard `xv' does not have png support although patches
seem to exist.
The standard xv release does not support PNG images according to
the homepage. Even if there are any patches available somewhere,
they are not applied at the moment.
There is an official patch on the downloads page, "Patch to read/
write PNG files" [1].
The statement in the description is, "This version has been patched
to support the PNG & PhotoCD image types." But it seems that it is
just using the standard source distribution without additional
patches.
`port info xv' lists `libpng' as one of the dependencies
and PNG is explicitely mentioned under the supported file
formats. therefore I installed it hoping for PNG support,
but without success: no display of png images.
Strange enough, it is really linked against libpng. But it can't
display PNG images for me neither.
$ otool -L /opt/local/bin/xv
/opt/local/bin/xv:
[...]
/opt/local/lib/libjpeg.62.dylib (compatibility version
63.0.0, current version 63.0.0)
/opt/local/lib/libtiff.3.dylib (compatibility version
12.0.0, current version 12.2.0)
/usr/X11/lib/libpng.3.dylib (compatibility version 4.0.0,
current version 4.0.0)
[...]
Looks like it's also linked against the system's libpng, not
MacPorts' libpng, which is unfortunate and should be fixed.
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