tech-pkg: pthread.builtin.mk under NetBSD

Subject: pthread.builtin.mk under NetBSD
To: None <tech-pkg@netbsd.org>
From: Rui-Xiang Guo <rxg@myrealbox.com>
List: tech-pkg
Date: 06/21/2005 22:17:07

Hi, all.
In pthread.builtin.mk, I found these lines -
[...]
.    if ${OPSYS} == "NetBSD"
BUILDLINK_LIBS.pthread=         # empty
[...]

Why we set BUILDLINK_LIBS.pthread as null even we already have libpthread
after 2.0? Did I misunderstand something?