I have searched the forum to find a similar problem, but couldn't find it:

I'm using Arch Linux-64, kernel 2.6.34, libpng version 1.4.3-1.
And latest version of rainlendar: 2.7 build 91.

On starting rainlendar, the following error occurs:

rainlendar: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory

So i tried creating a symlink: ln -s libpng14.so.14.3.0 libpng12.so.0

Then it displays this error:
rainlendar: /usr/lib/libcurl.so.4: no version information available (required by rainlendar)
rainlendar: /usr/lib/libpng12.so.0: version `PNG12_0' not found (required by rainlendar)

Before trying all sorts of things, including installing libpng12 alongside the newer version, I thought i'd try posting here first. Maybe there's an easier solution or a workaround?

Regards,
Chris

Anyone?

quoting Rainy: "Seems that you have a incompatible version of the library that which Rainlendar depends on. You would have to install the libpng 1.2 onto your system. I don't have Arch Linux installation available so I don't know which exact version you need to install but in Ubuntu where the build was made the version number is 1.2.15~beta5-2ubuntu0.1 (32bit) and 1.2.15~beta5-3ubuntu0.1 (64bit) so probably anything from 1.2.15 to 1.2.44 should work.".

I installed 1.2.43 alongside the newer version, from here:
aur.archlinux.org/packages.php?ID=33795

The old and new version apparently don't conflict, so it's all fine.
There must be a reason why Ubuntu is using the old version though...