From openbsd-ports  Thu Nov 22 00:13:21 2001
From: Marc Espie <espie () schutzenberger ! liafa ! jussieu ! fr>
Date: Thu, 22 Nov 2001 00:13:21 +0000
To: openbsd-ports
Subject: Re: png dependent ports broken
X-MARC-Message: https://marc.info/?l=openbsd-ports&m=100638809018523

On Wed, Nov 21, 2001 at 04:09:22PM -0800, Marco S Hyman wrote:
> Oh, and the port gdk-pixbuf-0.10.1.tar.gz specifically bitches about
> libpng.2.0:
> 
>   cc -O2 -L/usr/local/lib -o .libs/test-gdk-pixbuf test-gdk-pixbuf.o -L.libs -lgdk_pixbuf -lgmodule -lglib -L/usr/X11R6/lib -lgtk -lgdk -lgmodule -lglib -lintl -lXext -lX11 -lm -lpng -lz -ljpeg -ltiff -L/usr/local/lib -lgmodule -lglib -L/usr/local/lib -L/usr/X11R6/lib -lgtk -lgdk -lgmodule -lglib -lintl -lXext -lX11 -lm -ltiff -ljpeg -lpng -lz -lgmodule -Wl,-rpath,/usr/local/lib
>   ld: no shared -lpng.2.0 available

So, some library in your system uses libpng 2.0.

What did you do ? try to update using pkg_delete/pkg_add -f ?

Run a ldd on all those libraries, which one wants libpng ?
does it come with a package with a png dependency ?