Bug 739648 – sys-apps/portage: bdepends get rebuilt when world is updated

• Product: Gentoo Linux
• Status: RESOLVED DUPLICATE

[Description William Hubbs 2020-08-30 17:05:53 UTC]

Hi Zac,

this bug is easy to reproduce. I'm seeing it in stable portage, and
others are seeing it in ~arch.

emerge net-p2p/syncthing. Once you do this, you will see that
portage wants to rebuild dev-lang/go-1.14.7 every time you update world.

Syncthing will not build with go 1.15, so it needs go 1.14, but go 1.14
should not be rebuilding for every world update.



$ emerge --info
Portage 2.3.103 (python 3.7.8-final-0, default/linux/amd64/17.1, gcc-9.3.0, glibc-2.31-r6, 5.4.60 x86_64)
=================================================================
System uname: Linux-5.4.60-x86_64-Intel-R-_Core-TM-_i7-6700_CPU_@_3.40GHz-with-gentoo-2.6
KiB Mem:    32760724 total,  20118668 free
KiB Swap:   33554428 total,  33554428 free
Timestamp of repository gentoo: Sun, 30 Aug 2020 16:30:01 +0000
Head commit of repository gentoo: a4d773b4c2f433438b00010bbf0981c81e123d1b
sh bash 5.0_p18
ld GNU ld (Gentoo 2.33.1 p2) 2.33.1
app-shells/bash:          5.0_p18::gentoo
dev-lang/perl:            5.30.3::gentoo
dev-lang/python:          2.7.18-r1::gentoo, 3.7.8-r2::gentoo, 3.8.5::gentoo
dev-util/cmake:           3.16.5::gentoo
sys-apps/baselayout:      2.6-r1::gentoo
sys-apps/openrc:          9999::gentoo
sys-apps/sandbox:         2.18::gentoo
sys-devel/autoconf:       2.69-r4::gentoo
sys-devel/automake:       1.16.1-r1::gentoo
sys-devel/binutils:       2.33.1-r1::gentoo
sys-devel/gcc:            9.3.0-r1::gentoo
sys-devel/gcc-config:     2.3.1::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.2.1-r4::gentoo
sys-kernel/linux-headers: 5.4-r1::gentoo (virtual/os-headers)
sys-libs/glibc:           2.31-r6::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-verify-max-age: 24
    sync-rsync-extra-opts: 
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-metamanifest: yes

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe"
DISTDIR="/var/cache/distfiles"
EMERGE_DEFAULT_OPTS="--nospinner"
ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs config-protect-if-modified distlocks ebuild-locks fakeroot fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms sign strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j9"
PKGDIR="/var/cache/binpkgs"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
PORTAGE_TMPDIR="/var/tmp"
USE="acl alsa amd64 berkdb bzip2 cli crypt dri fortran gdbm gpgme iconv imap ipv6 libglvnd libtirpc multilib ncurses nls nptl openmp pam pcre readline seccomp split-usr ssl tcpd unicode xattr zlib" ABI_X86="64" ADA_TARGET="gnat_2018" 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" 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="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2 php7-3" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python2_7 python3_7" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="amdgpu fbdev intel nouveau radeon radeonsi vesa dummy v4l" 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:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Zac Medico 2020-08-30 21:55:18 UTC]

I'm able to reproduce the problem, which appears to be a case of bug 439688, triggered by this missed update:


> WARNING: One or more updates/rebuilds have been skipped due to a dependency conflict:
> 
> dev-lang/go:0
> 
>   (dev-lang/go-1.15:0/1.15::gentoo, ebuild scheduled for merge) USE="" ABI_X86="(64)" conflicts with
>     <dev-lang/go-1.15 required by (net-p2p/syncthing-1.3.4-r1:0/0::gentoo, ebuild scheduled for merge) USE="(-selinux) -tools" ABI_X86="(64)"
>     ^            ^^^^

*** This bug has been marked as a duplicate of bug 439688 ***

[Comment 2 Larry the Git Cow 2020-08-30 22:39:46 UTC]

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/proj/portage.git/commit/?id=8b9345976c95ff41c7f075f7917d498f77d7d155

commit 8b9345976c95ff41c7f075f7917d498f77d7d155
Author:     Zac Medico <[e-mail]>
AuthorDate: 2020-08-30 22:18:35 +0000
Commit:     Zac Medico <[e-mail]>
CommitDate: 2020-08-30 22:38:42 +0000

    test_slot_conflict_rebuild: Add dev-lang/go case for bug 439688
    
    Demonstrate this unwanted dev-lang/go rebuild triggered by a missed
    update due to a slot conflict:
    
    [ebuild   R    ] dev-lang/go-1.14.7
    
    WARNING: One or more updates/rebuilds have been skipped due to a dependency conflict:
    
    dev-lang/go:0
    
      (dev-lang/go-1.15:0/1.15::test_repo, ebuild scheduled for merge) USE="" conflicts with
        =dev-lang/go-1.14* required by (net-p2p/syncthing-1.3.4-r1:0/0::test_repo, installed) USE=""
        ^            ^^^^^
    
    Bug: https://bugs.gentoo.org/439688
    Bug: https://bugs.gentoo.org/739648
    Signed-off-by: Zac Medico <[e-mail]>

 .../tests/resolver/test_slot_conflict_rebuild.py   | 64 +++++++++++++++++++++-
 1 file changed, 63 insertions(+), 1 deletion(-)