Do you have the 32 bit version of libXp installed? It'll be libXp.i686 [by TrevorH]
The way to find out which package to install to get the missing file is, in this case, libXp.so.6 :
yum whatprovides "*/libXp.so.6"
... [by toracat]
I'm in need of some help from the forum members.
I was using fedora for a long time and now shifted to Ubuntu because of the LTS.
I uses IDL a lot, so tried to install it in Ubuntu and it peacefully got installed.