Because I wanted to avoid https://bugs.gentoo.org/show_bug.cgi?id=465044 I decided to mask libpng-1.6. 1) This then causes portage to attempt to install libpng-1.5.15-r15 as it is the highest version available 2) At the same time, it wants to install libpng-1.5.15 as this is the highest version that is in slot 0 (and I have several installed packages that depend on slot 0). And this doesn't work as 1.5.15-r15 explicitly blocks any other 1.5 branch that is in slot 0. Reproducible: Always Steps to Reproduce: 1. mask =media-libs/libpng-1.6 2. Install package that depends on libpng in slot 0 (such as media-gfx/imagemagick with USE="png"). 3. Run "emerge libpng --update --deep --newuse" Actual Results: In step 2 above, portage installs libpng-1.5.15 In step 3 above, portage attemtps to install libpng-1.5.15-r15 alongside version 1.5.15 but errors out due to it depending explicitly on not having a version in 1.5.* in slot 0. Expected Results: Not install attempt to install incompatible versions. Portage 2.2.0_alpha171 (default/linux/amd64/13.0, gcc-4.7.2, glibc-2.17, 3.8.5-aufs x86_64) ================================================================= System uname: Linux-3.8.5-aufs-x86_64-Intel-R-_Core-TM-2_CPU_6420_@_2.13GHz-with-gentoo-2.2 KiB Mem: 2030568 total, 386720 free KiB Swap: 2627424 total, 2627424 free Timestamp of tree: Wed, 10 Apr 2013 16:45:01 +0000 ld GNU ld (GNU Binutils) 2.23.1 distcc 3.1 x86_64-pc-linux-gnu [disabled] ccache version 3.1.9 [enabled] app-shells/bash: 4.2_p45 dev-java/java-config: 2.1.12-r1 dev-lang/python: 2.7.3-r3, 3.2.3-r2 dev-util/ccache: 3.1.9 dev-util/cmake: 2.8.10.2-r1 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.13.1 sys-devel/binutils: 2.23.1 sys-devel/gcc: 4.7.2-r1 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.8 (virtual/os-headers) sys-libs/glibc: 2.17 Repositories: gentoo mv local_portage ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.5/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -march=native -pipe -fomit-frame-pointer" DISTDIR="/home/ftp/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps y --keep-going" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs ccache config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch usersandbox" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/mv /usr/local/portage" SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" USE="X aac acl acpi alsa amd64 anthy bash-completion berkdb bluray bzip2 c++0x cairo cdda cddb cdr cjk cli clutter consolekit corefonts cracklib crypt css cxx dbus dri dvd dvdread eds ffmpeg flac fontconfig fortran gdbm gif gmp gnome gnome-keyring gpm gstreamer gtk iconv icu immqt-bc ipv6 jpeg jpeg2k lcms libnotify lm_sensors lzma m17n-lib mmx modules mp3 msn mudflap multilib nautilus ncurses nls nptl nsplugin ogg opengl openmp pam pch pcre png policykit pulseaudio qemu-ifup qt3support readline scim session sse sse2 sse3 ssl ssse3 svg tcpd theora threads tiff truetype udev unicode vaapi vdpau vorbis x264 xml xvid xvmc zlib" ABI_X86="64 32" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer nlpsolver pdfimport" LINGUAS="en en_US es es_LA es_MX ja ko zh_CN zh_TW zh" NETBEANS_MODULES="apisupport cnd dlight enterprise ergonomics groovy java javacard javafx mobility php profiler websvccommon" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2 jython2_5" QEMU_SOFTMMU_TARGETS="x86_64 i386" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="nouveau nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
(In reply to comment #0) > Because I wanted to avoid https://bugs.gentoo.org/show_bug.cgi?id=465044 > I decided to mask libpng-1.6. > > 1) This then causes portage to attempt to install libpng-1.5.15-r15 as it is > the highest version available > 2) At the same time, it wants to install libpng-1.5.15 as this is the > highest version that is in slot 0 (and I have several installed packages > that depend on slot 0). > > And this doesn't work as 1.5.15-r15 explicitly blocks any other 1.5 branch > that is in slot 0. that's fine, it's as designed. both stabilization levels are intact, arch and ~arch. you caused the conflict by yourself by setting wrong package.mask entry as opposed to using the correct one, that includes the 1.5 SLOT designed to be co-installable with 1.6, like: media-libs/libpng:1.5 >=media-libs/libpng-1.6
