I was trying to compile a program on my linux box last night and kept getting a libz not found error. So I jump over to RPMfind and look for libz, nothing, but something that didn’t look right. So today I did some more research and for many distros, including Mandrake, libz is actually found in the zlib rpm. Who knew, not only that but I needed the devel version to compile with. Always learning something new.