pkg/38902: pkg_comp fails `make package'

[Taylor R Campbell <campbell%mumble.net@localhost>]

>Number:         38902
>Category:       pkg
>Synopsis:       pkg_comp fails `make package'
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jun 08 23:35:00 +0000 2008
>Originator:     campbell%mumble.net@localhost
>Release:        NetBSD 4.0_STABLE
>Organization:
>Environment:
System: NetBSD slate.localdomain 4.0_STABLE NetBSD 4.0_STABLE (GENERIC) #0: Sat 
Jun 7 06:55:02 UTC 2008 
riastradh%slate.localdomain@localhost:/home/riastradh/netbsd/4/obj/sys/arch/macppc/compile/GENERIC
 macppc
Architecture: powerpc
Machine: macppc
>Description:
        `make package' with USE_DESTDIR=full and UNPRIVILEGED=yes fails
        to make a binary package for `pkg_comp' when trying to write
        into /usr.
>How-To-Repeat:
        I just fetched a fresh 2008Q1 pkgsrc tarball from FTP, untarred
        it in my home directory, and, after upgrading pkg_install and
        digest by running `make package' and then `pkg_add', tried to
        make a package of pkg_comp to install.  I have UNPRIVILEGED=yes
        and USE_DESTDIR=full, and I ran `make package', which failed
        when it tried to write into /usr.  I cannot fathom why with
        USE_DESTDIR=full and `make package' *anything* should be even
        thinking about writing to /usr.  This is quite astonishing, and
        the exact opposite of what I expect from something like
        `pkg_comp' whose very purpose is to make packages safer to
        build.
>Fix: