nss dependency problem, seamonkey

[Riccardo Mottola <riccardo.mottola%libero.it@localhost>]

Hi,

I am trying to install seamonkey as a binary package, since it is too 
much to compile on my ol' thinkpad (I know it requires > 1G of RAM to 
link properly on linux). I already have some packages built from pkgsrc, 
but I hope they don't conflict.

Anyway here my ouput:
narsil$ sudo pkg_add 
ftp://ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/i386/6.0_2013Q3/All/seamonkey-2.21.tgz
pkg_add: Warning: package `seamonkey-2.21' was built for a platform:
pkg_add: NetBSD/i386 6.0 (pkg) vs. NetBSD/i386 6.1.3 (this host)
pkg_add: Warning: package `nspr-4.10nb1' was built for a platform:
pkg_add: NetBSD/i386 6.0 (pkg) vs. NetBSD/i386 6.1.3 (this host)
pkg_add: Warning: package `nss-3.15.1' was built for a platform:
pkg_add: NetBSD/i386 6.0 (pkg) vs. NetBSD/i386 6.1.3 (this host)
pkg_add: Conflicting PLIST with nss-3.15.1: include/nss/nss/crmf.h
pkg_add: Can't install dependency nss>=3.15
pkg_add: 1 package addition failed


narsil$ pkg_info | grep nss

tells me I have no nss installed... what's the conflict about?

Riccardo