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FWIW - Initial switch to sys-devel/gcc-16

This forum covers all Gentoo-related software not officially supported by Gentoo. Ebuilds/software posted here might harm the health and stability of your system(s), and are not supported by Gentoo developers. Bugs/errors caused by ebuilds from overlays.gentoo.org are covered by this forum, too.
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freke
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FWIW - Initial switch to sys-devel/gcc-16

  • Quote

Post by freke » Tue May 27, 2025 9:41 pm

Decided to try/switch to sys-devel/gcc:16.

I'm only running some small non-desktop servers, but the initial switch from gcc15 to gcc16

Code: Select all

emerge -eva1 @world
completed without any hiccups (~amd64) except the already reported https://bugs.gentoo.org/956632 (mariadb) with my rather limited @worlds.

CONCATed @world

Code: Select all

app-admin/ansible-core
app-admin/checksec
app-admin/eclean-kernel
app-admin/kernel-hardening-checker
app-admin/lnav
app-admin/logrotate
app-admin/spectre-meltdown-checker
app-admin/sudo
app-admin/sysstat
app-antivirus/clamav
app-arch/lzop
app-arch/p7zip
app-arch/pixz
app-backup/borgbackup
app-backup/tarsnap
app-crypt/PBinCLI
app-crypt/glep63-check
app-crypt/johntheripper
app-emulation/qemu-guest-agent
app-eselect/eselect-repository
app-forensics/aide
app-forensics/lynis
app-forensics/rkhunter
app-forensics/unhide
app-misc/fastfetch
app-misc/resolve-march-native
app-misc/uptimed
app-portage/cfg-update
app-portage/cpuid2cpuflags
app-portage/eix
app-portage/elogv
app-portage/genlop
app-portage/gentoolkit
app-portage/mirrorselect
app-portage/pfl
app-portage/portage-utils
app-text/ansifilter
app-text/convmv
app-text/wgetpaste
dev-build/slibtool
dev-db/redis
dev-debug/gdb
dev-debug/strace
dev-embedded/libftdi
dev-python/aiodns
dev-python/aiohttp
dev-python/hatch-vcs
dev-python/pyinotify
dev-python/pyyaml
dev-python/redis
dev-python/uvloop
dev-util/debugedit
dev-util/pkgdev
dev-vcs/git
mail-filter/postfix-mta-sts-resolver
mail-filter/rspamd
net-analyzer/arpwatch
net-analyzer/fail2ban
net-analyzer/munin
net-analyzer/traceroute
net-analyzer/testssl
net-ftp/tftp-hpa
net-mail/dovecot
net-mail/postfix-logwatch
net-misc/chrony
net-misc/iperf
net-misc/whois
net-p2p/bitcoin-core
net-vpn/tailscale
sec-policy/apparmor-profiles
sci-mathematics/ent
sys-apps/apparmor-utils
sys-apps/hdparm
sys-apps/logwatch
sys-apps/lshw
sys-apps/mlocate
sys-apps/pkgcore
sys-apps/rng-tools
sys-apps/usbutils
sys-boot/grub
sys-fs/squashfs-tools
sys-kernel/genkernel
sys-kernel/gentoo-sources
sys-kernel/installkernel
sys-power/nut
sys-process/acct
sys-process/audit
sys-process/btop
sys-devel/mold
www-servers/lighttpd
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sam_
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Post by sam_ » Wed May 28, 2025 2:28 am

Thanks for testing as usual. Consider running testsuites too!
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freke
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  • Quote

Post by freke » Wed May 28, 2025 1:40 pm

sam_ wrote:Thanks for testing as usual. Consider running testsuites too!
Just to make sure - FEATURES=test?
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Post by sam_ » Wed May 28, 2025 1:55 pm

Yes -- FEATURES=test implies USE=test, but don't enable USE=test manually. USE=test is just a hack to handle test deps and conditional building of tests (not running them). I recommend having several /etc/portage/env files:
  • tests (with FEATURES="test")
  • tests-maybe-fail (with FEATURES="test-fail-continue")
  • no-tests (with FEATURES="-test")
... or similar, and then enabling gradually for packages via package.env. You may want to enable for everything with '*/* tests', then disable for some categories like Python (or keep it on, up to you).
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freke
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  • Quote

Post by freke » Wed May 28, 2025 1:58 pm

sam_ wrote:Yes -- FEATURES=test implies USE=test, but don't enable USE=test manually. USE=test is just a hack to handle test deps and conditional building of tests (not running them). I recommend having several /etc/portage/env files:
  • tests (with FEATURES="test")
  • tests-maybe-fail (with FEATURES="test-fail-continue")
  • no-tests (with FEATURES="-test")
... or similar, and then enabling gradually for packages via package.env. You may want to enable for everything with '*/* tests', then disable for some categories like Python (or keep it on, up to you).
Thanks - will start a new empty-tree run - is slow hardware, though ;)

Or.... maybe not - seems like a lot of use-flagging and a lot to pull in; seems to want ie. Xorg-server and stopped when it wanted use-flags for Firefow...

Code: Select all

ns ~ # emerge -va1 @world

These are the packages that would be merged, in order:

Calculating dependencies... done!
Dependency resolution took 21.31 s (backtrack: 0/20).


!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

dev-python/setuptools:0

  (dev-python/setuptools-80.8.0:0/0::gentoo, installed) USE="-test" PYTHON_TARGETS="python3_13 python3_14 -pypy3_11 -python3_11 -python3_12 -python3_13t -python3_14t" pulled in by
    dev-python/setuptools[python_targets_python3_14(-)] required by (dev-libs/glib-2.84.2:2/2::gentoo, ebuild scheduled for merge) USE="elf introspection mime test xattr -dbus -debug -doc (-selinux) -static-libs -sysprof -systemtap -utils"
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

  (dev-python/setuptools-79.0.1:0/0::gentoo, ebuild scheduled for merge) USE="test" PYTHON_TARGETS="python3_13 -pypy3_11 -python3_11 -python3_12 -python3_13t -python3_14 -python3_14t" pulled in by
    <dev-python/setuptools-80[python_targets_pypy3_11(-)?,python_targets_python3_11(-)?,python_targets_python3_12(-)?,python_targets_python3_13(-)?,python_targets_python3_14(-)?] required by (dev-python/pip-25.1.1:0/0::gentoo, ebuild scheduled for merge) USE="test (test-rust)" PYTHON_TARGETS="python3_13 -pypy3_11 -python3_11 -python3_12 -python3_14"
    ^                      ^^                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

dev-python/resolvelib:0

  (dev-python/resolvelib-1.1.0:0/0::gentoo, ebuild scheduled for merge) USE="test" PYTHON_TARGETS="python3_13 -pypy3_11 -python3_11 -python3_12 -python3_14" pulled in by
    >=dev-python/resolvelib-1.1.0[python_targets_pypy3_11(-)?,python_targets_python3_11(-)?,python_targets_python3_12(-)?,python_targets_python3_13(-)?,python_targets_python3_14(-)?] required by (dev-python/pip-25.1.1:0/0::gentoo, ebuild scheduled for merge) USE="test (test-rust)" PYTHON_TARGETS="python3_13 -pypy3_11 -python3_11 -python3_12 -python3_14"
    ^^                      ^^^^^                                                                                                                                                                                                                                                                                                                                                                                                                                                               

  (dev-python/resolvelib-1.0.1:0/0::gentoo, installed) USE="-test" PYTHON_TARGETS="python3_13 -python3_11 -python3_12" pulled in by
    <dev-python/resolvelib-1.1.0[python_targets_python3_11(-)?,python_targets_python3_12(-)?,python_targets_python3_13(-)?] required by (app-admin/ansible-core-2.18.3:0/0::gentoo, ebuild scheduled for merge) USE="" PYTHON_TARGETS="python3_13 -python3_11 -python3_12"
    ^                      ^^^^^                                                                                                                                                                                                                                                                                                                                        

dev-libs/glib:2

  (dev-libs/glib-2.84.2:2/2::gentoo, installed) USE="elf mime xattr -dbus -debug -doc -introspection (-selinux) -static-libs -sysprof -systemtap -test -utils" pulled in by
    (no parents that aren't satisfied by other packages in this slot)

  (dev-libs/glib-2.84.2:2/2::gentoo, ebuild scheduled for merge) USE="elf introspection mime test xattr -dbus -debug -doc (-selinux) -static-libs -sysprof -systemtap -utils" pulled in by
    >=dev-libs/glib-2.82.0:2[introspection] required by (dev-libs/gobject-introspection-1.84.0-r1:0/0::gentoo, ebuild scheduled for merge) USE="test -doctool -gtk-doc" PYTHON_SINGLE_TARGET="python3_13 -python3_11 -python3_12"
                             ^^^^^^^^^^^^^                                                                                                                                                                                                                                                                                                                              

dev-util/ragel:0

  (dev-util/ragel-7.0.4-r3:0/0::gentoo, ebuild scheduled for merge) USE="-doc" pulled in by
    (no parents that aren't satisfied by other packages in this slot)

  (dev-util/ragel-6.10:0/0::gentoo, ebuild scheduled for merge) USE="" pulled in by
    =dev-util/ragel-6* required by (dev-ruby/regexp_parser-2.10.0:2/2::gentoo, ebuild scheduled for merge) USE="test -doc" RUBY_TARGETS="ruby32 -ruby33 -ruby34"
    ^               ^^                                                                                                                                                                                                                          


It may be possible to solve this problem by using package.mask to
prevent one of those packages from being selected. However, it is also
possible that conflicting dependencies exist such that they are
impossible to satisfy simultaneously.  If such a conflict exists in
the dependencies of two different packages, then those packages can
not be installed simultaneously.

For more information, see MASKED PACKAGES section in the emerge man
page or refer to the Gentoo Handbook.


!!! The ebuild selected to satisfy "www-client/firefox" has unmet requirements.
- www-client/firefox-139.0::gentoo USE="clang hardened jumbo-build pgo system-av1 system-harfbuzz system-icu system-jpeg system-libevent system-libvpx system-webp telemetry test -X -dbus -debug -eme-free (-gmp-autoupdate) -gnome-shell -hwaccel -jack (-jpegxl) -libproxy -openh264 -pulseaudio (-selinux) -sndio -system-pipewire -system-png (-valgrind) -wasm-sandbox -wayland -wifi" L10N="-ach -af -an -ar -ast -az -be -bg -bn -br -bs -ca -ca-valencia -cak -cs -cy -da -de -dsb -el -en-CA -en-GB -eo -es-AR -es-CL -es-ES -es-MX -et -eu -fa -ff -fi -fr -fur -fy -ga -gd -gl -gn -gu -he -hi -hr -hsb -hu -hy -ia -id -is -it -ja -ka -kab -kk -km -kn -ko -lij -lt -lv -mk -mr -ms -my -nb -ne -nl -nn -oc -pa -pl -pt-BR -pt-PT -rm -ro -ru -sc -sco -si -sk -skr -sl -son -sq -sr -sv -szl -ta -te -th -tl -tr -trs -uk -ur -uz -vi -xh -zh-CN -zh-TW" LLVM_SLOT="19 -20"

  The following REQUIRED_USE flag constraints are unsatisfied:
    any-of ( X wayland )

  The above constraints are a subset of the following complete expression:
    any-of ( X wayland ) debug? ( !system-av1 ) pgo? ( jumbo-build ) wayland? ( dbus ) wifi? ( dbus ) exactly-one-of ( llvm_slot_19 llvm_slot_20 )

(dependency required by "dev-ruby/capybara-3.40.0::gentoo[test]" [ebuild])
(dependency required by "dev-ruby/actionpack-7.1.5.1::gentoo[ruby_targets_ruby32,test]" [ebuild])
(dependency required by "dev-ruby/activerecord-7.1.5.1::gentoo[ruby_targets_ruby32,test]" [ebuild])
(dependency required by "dev-ruby/actionview-7.1.5.1::gentoo[ruby_targets_ruby32,test]" [ebuild])
Running headless servers/VMs on Intel Atom hardware
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sam_
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Post by sam_ » Thu May 29, 2025 7:07 pm

Sure, you can disable tests for specific packages where it pulls in something you don't want (or even do it for e.g. all of dev-ruby/*).
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