Bugzilla Bug 80506

Don't have the specific error message (on a different box), but vpopmail will
not merge if portage runs as a non-privileged user.  Configure will die with an
error stating that its configure must be run as the root user right at the tail
end.  Removing 'userpriv' and 'usersandbox' from FEATURES resolved the issue.

portage bug?

# grep RESTRICT /usr/portage/net-mail/vpopmail/*.ebuild
/usr/portage/net-mail/vpopmail/vpopmail-5.4.0-r1.ebuild:RESTRICT="nouserpriv"
/usr/portage/net-mail/vpopmail/vpopmail-5.4.6-r1.ebuild:RESTRICT="nouserpriv"

What portage version?
emerge info

The output would be helpful, and also another run with: emerge -d vpopmail

Created an attachment (id=50239) [edit]
NOCOLOR="true" emerge vpopmail -d --nodeps &> vpopmail.log

# emerge info
Portage 2.0.51-r15 (default-linux/x86/2004.3, gcc-3.4.3,
glibc-2.3.4.20041102-r0, 2.6.10-gentoo-r4 i686)
=================================================================
System uname: 2.6.10-gentoo-r4 i686 Intel(R) Pentium(R) 4 CPU 1.80GHz
Gentoo Base System version 1.6.9
Python: 	     dev-lang/python-2.3.4 [2.3.4 (#1, Jan 24 2005, 11:09:45)]
dev-lang/python:     2.3.4
sys-devel/autoconf:  2.59-r6, 2.13
sys-devel/automake:  1.7.9-r1, 1.8.5-r3, 1.5, 1.4_p6, 1.6.3, 1.9.4
sys-devel/binutils:  2.15.92.0.2-r2
sys-devel/libtool:   1.5.10-r4
virtual/os-headers:  2.6.8.1-r2
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.3/env
/usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config
/usr/lib/X11/xkb /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -march=pentium4 -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache cvs distlocks parallel-fetch prelink
sandbox sfperms sign strict userpriv usersandbox verify-rdepend"
GENTOO_MIRRORS="http://gentoo.osuosl.org"
LANG="en_US.UTF-8"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/overlay"
SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage"
USE="x86 X aalib apache2 avi berkdb bitmap-fonts crypt dba encode f77 fam flac
font-server foomaticdb fortran gd gd-external gdbm gif hal imlib ipv6 java jpeg
kde libg++ libwww mikmod mmx mpeg mysql ncurses nls opengl pam pdflib perl png
postgres python qt readline real samba sdl session slang spell sse ssl tcpd
tiff truetype truetype-fonts type1-fonts unicode xml2 xmms xv zlib"
Unset:	ASFLAGS, CBUILD, CTARGET, LC_ALL, LDFLAGS

Conversion over to supporting RESTRICT="userpriv" horked it (logic error),
corrected in portage stable cvs.

Having both userpriv and nouserpriv in RESTRICT is a temp fix.

I've put in the workaround of having both userpriv and nouserpriv in RESTRICT.