$ emerge --info '=net-libs/webkit-gtk-2.28.1::gentoo'
Portage 2.3.99 (python 3.6.10-final-0, !../../mnt/system/repos/reagentoo/profiles/developer, gcc-9.3.0, glibc-2.30-r8, 5.6.4-gentoo-x86_64 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-5.6.4-gentoo-x86_64-x86_64-Intel-R-_Core-TM-_i5-4690_CPU_@_3.50GHz-with-gentoo-2.7
KiB Mem:    16393932 total,    549420 free
KiB Swap:          0 total,         0 free
Head commit of repository gentoo: 56d6f1b9d883760a76782d2775293bc9fbe6095d

Head commit of repository reagentoo: 3999f73d51e789386b5baa7ad826bd4f79f18548

Timestamp of repository stuff: Wed, 15 Apr 2020 00:06:44 +0000
Head commit of repository stuff: 33900179b6a17cc294633d49d70ad37b32d047bc

sh bash 5.0_p16
ld GNU ld (Gentoo 2.34 p1) 2.34.0
app-shells/bash:          5.0_p16::gentoo
dev-lang/perl:            5.30.2::gentoo
dev-lang/python:          2.7.17-r2::gentoo, 3.6.10-r1::gentoo, 3.7.7-r1::gentoo, 3.8.2-r1::gentoo
dev-util/cmake:           3.17.1::gentoo
sys-apps/baselayout:      2.7::gentoo
sys-apps/openrc:          0.42.1::gentoo
sys-apps/sandbox:         2.18::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.69-r5::gentoo
sys-devel/automake:       1.16.2::gentoo
sys-devel/binutils:       2.34::gentoo
sys-devel/gcc:            9.3.0::gentoo
sys-devel/gcc-config:     2.2.1::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.3::gentoo
sys-kernel/linux-headers: 5.6::gentoo (virtual/os-headers)
sys-libs/glibc:           2.30-r8::gentoo
Repositories:

gentoo
    location: /mnt/system/portage
    sync-type: git
    sync-uri: https://anongit.gentoo.org/git/repo/gentoo.git
    priority: -1000

staging
    location: /mnt/routine/projects/staging-overlay
    masters: gentoo
    priority: 5

reagentoo
    location: /mnt/system/repos/reagentoo
    sync-type: git
    sync-uri: https://github.com/reagentoo/gentoo-overlay.git
    masters: gentoo
    priority: 10

stuff
    location: /mnt/system/repos/stuff
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/stuff.git
    masters: gentoo
    priority: 10

Installed sets: @r-developer
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=core-avx2 -O2 -pipe"
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/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=core-avx2 -O2 -pipe"
DISTDIR="/mnt/system/distfiles"
ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN 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="-march=core-avx2 -O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs buildpkg config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox 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="-march=core-avx2 -O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="ru_RU.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en ru ru_RU"
MAKEOPTS="-j3"
PKGDIR="/mnt/system/packages"
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 apparmor ayatana berkdb bzip2 cli crypt dbus device-mapper dri egl elogind fortran gdbm gnome gnome-keyring iconv icu iproute2 ipv6 json libtirpc nautilus ncurses nls nptl openmp pam pcre policykit pulseaudio readline seccomp split-usr ssl tcpd threads udev unicode vaapi vulkan wayland 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 avx avx2 sse3 sse4_1 sse4_2 ssse3" 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 pc" INPUT_DEVICES="libinput keyboard mouse" KERNEL="linux" L10N="en ru" 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" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python3_6" RUBY_TARGETS="ruby27" USERLAND="GNU" VIDEO_CARDS="amdgpu i965 intel radeon radeonsi" 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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS