[Linux] pkg_add fails saying package is for x86_64 and this is amd64

[Mayuresh <mayuresh%acm.org@localhost>]

On Linux, only for some packages, this error is occuring:

E.g. libdrm:

pkg_add: Warning: package `libdrm-2.4.97' was built for a platform:
pkg_add: Linux/x86_64 3.16.0 (pkg) vs. Linux/amd64 3.16.0 (this host)
pkg_add: 1 package addition failed


I have latest pkg_install installed.

What could be the issue?

Mayuresh