Bugzilla Bug 161157

I've emerged 'www-apps/bugzilla-2.20.3'; and Portage properly installed
Bugzilla's various mysql dependencies.  However, if you then run 'emerge -uDN
world', Portage tries to update the 'DBD-mysql' package to
'dev-perl/DBD-mysql-3.0008'.  It does this despite Bugzilla's dependency of
'<=dev-perl/DBD-mysql-3.0002' (and I believe Bugzilla is the only package
installed requiring this package).  So, if you run 'emerge -uDN world', it'll
merge 'dev-perl/DBD-mysql-3.0008'; then, if you do another 'emerge -uDN world',
it'll downgrade to 'dev-perl/DBD-mysql-2.9007'.  You can do this as many times
as you like, and it'll keep happening; thus, your system never appears to be
'up-to-date' (which is why I called it a "circular update path").  Furthermore,
 it potentially leaves Bugzilla in a non-working state.  I'm not certain if
this is a bug in the way Portage calculates the packages to be updated, or if
'dev-perl/DBD-mysql' should have its major versions split using Portage's
'slots' feature.


Reproducible: Always

Steps to Reproduce:
1. run 'emerge www-apps/bugzilla'
2. run 'emerge -uDN world'
3. repeat step 2 as many times as you like

Actual Results:  
dev-perl/DBD-mysql-3.0008 and dev-perl/DBD-mysql-2.9007 alternately gets merged

Expected Results:  
dev-perl/DBD-mysql-2.9007 remains merged and portage doesn't try to update it.

emerge --info follows:

Portage 2.1.1-r2 (default-linux/amd64/2006.1/server, gcc-4.1.1, glibc-2.4-r4,
2.6.18-gentoo-r4 x86_64)
=================================================================
System uname: 2.6.18-gentoo-r4 x86_64 Intel(R) Xeon(R) CPU            5130  @
2.00GHz
Gentoo Base System version 1.12.6
Last Sync: Tue, 09 Jan 2007 11:50:01 +0000
distcc 2.18.3 x86_64-pc-linux-gnu (protocols 1 and 2) (default port 3632)
[disabled]
ccache version 2.3 [enabled]
app-admin/eselect-compiler: [Not Present]
dev-java/java-config: [Not Present]
dev-lang/python:     2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     2.3
dev-util/confcache:  [Not Present]
sys-apps/sandbox:    1.2.17
sys-devel/autoconf:  2.13, 2.61
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.16.1-r3
sys-devel/gcc-config: 1.3.14
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -march=nocona -fomit-frame-pointer -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache distlocks metadata-transfer
parallel-fetch sandbox sfperms strict"
GENTOO_MIRRORS="http://adelie.polymtl.ca/ http://gentoo.arcticnetwork.ca/
http://distro.ibiblio.org/pub/linux/distributions/gentoo/"
MAKEOPTS="-j8"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress
--force --whole-file --delete --delete-after --stats --timeout=180
--exclude='/distfiles' --exclude='/local' --exclude='/packages'"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage"
USE="amd64 alsa_cards_ali5451 alsa_cards_als4000 alsa_cards_atiixp
alsa_cards_atiixp-modem alsa_cards_bt87x alsa_cards_ca0106 alsa_cards_cmipci
alsa_cards_emu10k1x alsa_cards_ens1370 alsa_cards_ens1371 alsa_cards_es1938
alsa_cards_es1968 alsa_cards_fm801 alsa_cards_hda-intel alsa_cards_intel8x0
alsa_cards_intel8x0m alsa_cards_maestro3 alsa_cards_trident
alsa_cards_usb-audio alsa_cards_via82xx alsa_cards_via82xx-modem
alsa_cards_ymfpci alsa_pcm_plugins_adpcm alsa_pcm_plugins_alaw
alsa_pcm_plugins_asym alsa_pcm_plugins_copy alsa_pcm_plugins_dmix
alsa_pcm_plugins_dshare alsa_pcm_plugins_dsnoop alsa_pcm_plugins_empty
alsa_pcm_plugins_extplug alsa_pcm_plugins_file alsa_pcm_plugins_hooks
alsa_pcm_plugins_iec958 alsa_pcm_plugins_ioplug alsa_pcm_plugins_ladspa
alsa_pcm_plugins_lfloat alsa_pcm_plugins_linear alsa_pcm_plugins_meter
alsa_pcm_plugins_mulaw alsa_pcm_plugins_multi alsa_pcm_plugins_null
alsa_pcm_plugins_plug alsa_pcm_plugins_rate alsa_pcm_plugins_route
alsa_pcm_plugins_share alsa_pcm_plugins_shm alsa_pcm_plugins_softvol apache2
berkdb bitmap-fonts cli cracklib crypt cups dlloader doc dri elibc_glibc
fortran gdbm gpm iconv input_devices_evdev input_devices_keyboard
input_devices_mouse ipv6 isdnlog kernel_linux ldap libg++ mailwrapper mysql
ncurses nls nptl nptlonly pam pcre perl ppds pppd python readline reflection
session snmp spl ssl tcpd threads truetype truetype-fonts type1-fonts udev
unicode userland_GNU video_cards_apm video_cards_ark video_cards_ati
video_cards_chips video_cards_cirrus video_cards_cyrix video_cards_dummy
video_cards_fbdev video_cards_glint video_cards_i128 video_cards_i810
video_cards_mga video_cards_neomagic video_cards_nv video_cards_rendition
video_cards_s3 video_cards_s3virge video_cards_savage video_cards_siliconmotion
video_cards_sis video_cards_sisusb video_cards_tdfx video_cards_tga
video_cards_trident video_cards_tseng video_cards_v4l video_cards_vesa
video_cards_vga video_cards_via video_cards_vmware video_cards_voodoo xml xorg
zlib"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS,
LINGUAS, PORTAGE_RSYNC_EXTRA_OPTS

*** This bug has been marked as a duplicate of bug 158817 ***

this should be fixed in 2.22

I respectfully disagree that this is a dupe.  Obviously, Portage understands
the RDEPEND relationship, but it doesn't respect it when running 'emerge -uDN
world' when the 2.9007 version of the package is installed.  I see that Bug
158817 potentially resolves this particular issue with DBD-mysql and Bugzilla,
but shouldn't the larger issue (i.e. Portage respecting the RDEPEND
relationship) also be fixed?

So upgrade to latest portage.

*** This bug has been marked as a duplicate of bug 158817 ***