png trouble

[ableasby at hgmp.mrc.ac.uk]

If you have libpng, libz or libgd in /usr/lib then EMBOSS will
use it (them) and use only use the --with-pngdriver=dir
specification to find any remaining libraries. You can either
make sure that any such libraries in /usr/lib are up-to-date
or temporarily rename them and use --with-pngdriver=dir
to point to an appropriate location where you've compiled
them.

Similar considerations apply to /usr/local/lib in the case of
png support (not quite the same but similar).

HTH
Alan