[rrd-users] libpng error

[jim steele]

Hello,

I have successfully built and installed rrdtool-1.2.19 on OpenBSD 4.0
along with the following libs:

freetype-2.3.4
libart_lgpl-2.3.17
libpng-1.2.16
zlib-1.2.3

When I try to create a graph either from a perl script using RRDs or
from rrdtool graph on the command line, I get this error:

libpng error: zlib error

Does anyone know how I might resolve this problem or what I am doing wrong?

Thanks for all your help.