I have a host installed with fedora19 64bit, I saw the directory of /lib and /lib64. In fhs, it says, normally, /lib is a link to /lib64 or /lib32, but it seems not in fedora or other linux dist with 3.* kernel. I saw the files in /lib just have some directories and most of them are 64bit elf too, why is this happening? Where should we find and place the libraries when we are writing a program? thanks.