houge@gentoo-lxqt ~ $ doas emerge --info '=sys-devel/clang-14.0.0-r1::gentoo'
Portage 3.0.30 (python 3.9.12-final-0, default/linux/amd64/17.1/desktop/systemd, gcc-11.2.1, glibc-2.35-r2, 5.16.14-gentoo x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-5.16.14-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E5-2696_v2_@_2.50GHz-with-glibc2.35
KiB Mem:    17010300 total,  15263176 free
KiB Swap:    2096104 total,   1999700 free
Head commit of repository gentoo: 5f4285c188035dbe816523ad78927c3010a62fed

sh bash 5.1_p16
ld GNU ld (Gentoo 2.38 p3) 2.38
app-misc/pax-utils:        1.3.3::gentoo
app-shells/bash:           5.1_p16::gentoo
dev-lang/perl:             5.34.1::gentoo
dev-lang/python:           3.9.12::gentoo, 3.10.4::gentoo
dev-lang/rust:             1.59.0::gentoo
dev-util/cmake:            3.23.0::gentoo
dev-util/meson:            0.61.4-r2::gentoo
sys-apps/baselayout:       2.8::gentoo
sys-apps/sandbox:          2.29::gentoo
sys-apps/systemd:          250.4-r1::gentoo
sys-devel/autoconf:        2.71-r1::gentoo
sys-devel/automake:        1.16.5::gentoo
sys-devel/binutils:        2.38-r1::gentoo
sys-devel/binutils-config: 5.4.1::gentoo
sys-devel/clang:           13.0.1::gentoo
sys-devel/gcc:             11.2.1_p20220115::gentoo
sys-devel/gcc-config:      2.5-r1::gentoo
sys-devel/libtool:         2.4.7::gentoo
sys-devel/lld:             14.0.0::gentoo
sys-devel/llvm:            13.0.1::gentoo, 14.0.0::gentoo
sys-devel/make:            4.3::gentoo
sys-kernel/linux-headers:  5.17::gentoo (virtual/os-headers)
sys-libs/glibc:            2.35-r2::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: git
    sync-uri: https://github.com/gentoo/gentoo.git
    priority: -1000

ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /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/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe"
DISTDIR="/var/cache/distfiles"
EMERGE_DEFAULT_OPTS="--keep-going --with-bdeps=y --autounmask-write=y --quiet-build=y --jobs=2 -l"
ENV_UNSET="CARGO_HOME 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 buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="https://mirrors.ustc.edu.cn/gentoo/"
LANG="C.UTF8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en_US zh_CN en zh"
MAKEOPTS="-j20"
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"
SHELL="/bin/bash"
USE="X a52 aac acl acpi alsa amd64 bluetooth branding bzip2 cairo cdda cdr cjk clang cli crypt cups dbus dri dts dvd dvdr encode exif flac fortran gdbm gif gpm gtk gui iconv icu ipv6 jpeg lcms libglvnd libnotify libtirpc llvm lto mad mng mp3 mp4 mpeg multilib ncurses nls nptl ogg opengl openmp pam pango pcre pdf pgo png policykit ppds qt5 readline sdl seccomp spell split-usr ssl startup-notification svg systemd tiff truetype udev udisks unicode upower usb vala vorbis vulkan wayland wxwidgets x264 xattr xcb xml xv xvid zlib zstd" ABI_X86="64" ADA_TARGET="gnat_2020" 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" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="libinput evdev joystick" KERNEL="linux" L10N="en-US zh-CN en zh" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="X86" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-4 php8-0" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_9" PYTHON_TARGETS="python3_9" QEMU_SOFTMMU_TARGETS="aarch64 arm mips mips64 mips64el riscv x86_64" QEMU_USER_TARGETS="aarch64 arm mips mips64 mips64el riscv x86_64" RUBY_TARGETS="ruby30" USERLAND="GNU" VIDEO_CARDS="virgl qxl" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LEX, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS