Those are linker errors from libpng, libjpeg, and so on - not from ClanLib.

I'm guessing here, but if you are using the precompiled binaries for VC70 or newer with VC60, then that is probably why it cannot find this symbol. It is most likely an internal symbol used by VC7x and never versions of the compiler, which VC60 knows nothing about and thus just dumps it as a linker error.

To fix this problem, rebuild the external libraries with your compiler.