emerge --info rstudio

$ emerge --info rstudio
Portage 2.2.10 (default/linux/amd64/13.0, gcc-4.9.0, glibc-2.19-r1, 3.15.0-pf4 x86_64)
=================================================================
                        System Settings
=================================================================
System uname: Linux-3.15.0-pf4-x86_64-Intel-R-_Core-TM-_i5_CPU_M_430_@_2.27GHz-with-gentoo-2.2
KiB Mem:     8029744 total,   2508688 free
KiB Swap:          0 total,         0 free
Timestamp of tree: Sun, 10 Aug 2014 19:45:01 +0000
ld GNU ld (Gentoo 2.24 p1.4) 2.24
ccache version 3.1.9 [enabled]
app-shells/bash:          4.2_p47
dev-java/java-config:     2.2.0
dev-lang/python:          2.7.8, 3.2.5-r4, 3.3.5, 3.4.1
dev-util/ccache:          3.1.9-r2
dev-util/cmake:           2.8.12.2-r1
dev-util/pkgconfig:       0.28-r2
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.11.6, 1.12.6, 1.14.1
sys-devel/binutils:       2.24-r3
sys-devel/gcc:            4.8.2, 4.9.0
sys-devel/gcc-config:     1.8
sys-devel/libtool:        2.4.2-r1
sys-devel/make:           4.0-r1
sys-kernel/linux-headers: 3.15 (virtual/os-headers)
sys-libs/glibc:           2.19-r1
Repositories: gentoo my_repo
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=corei7 -mtune=corei7 -O2 -pipe -mmmx -msse4.2 -ftracer -mfpmath=sse -msse -msse2 -mssse3 -msse4.1 -msse4.2 -fomit-frame-pointer --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=3072 -mcx16 -msahf -mpopcnt -fschedule-insns    "
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0 /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /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"
CXXFLAGS="-march=corei7 -mtune=corei7 -O2 -pipe -mmmx -msse4.2 -ftracer -mfpmath=sse -msse -msse2 -mssse3 -msse4.1 -msse4.2 -fomit-frame-pointer --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=3072 -mcx16 -msahf -mpopcnt -fschedule-insns    "
DISTDIR="/home/linux/portage/distfiles"
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 userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://mirror.yandex.ru/gentoo-distfiles/ http://distfiles.gentoo.org/ http://portage.org.ua ftp://portage.org.ua/ ftp://mirror.yandex.ru/gentoo-distfiles/ "
LANG="ru_RU.UTF-8"
LC_ALL=""
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5"
PKGDIR="/home/linux/portage/pkgdir"
PORTAGE_BZIP2_COMMAND="lbzip2 -n4"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="--exclude-from=/etc/portage/rsync_excludes"
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"
PORTAGE_TMPDIR="/var/tmp/"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/var/lib/layman/my"
SYNC="rsync://mirror.yandex.ru/gentoo-portage/"
USE="64bit acl amd64 bzip2 calculate_nodecoration calculate_nonettools cli cpudetection cracklib crypt cxx dri fpu glibc-omitfp iconv mmx mmxext modules multilib ncurses nls opengl orc pam pcre qt3support readline session smp sse sse2 sse3 sse4 ssl ssse3 tcpd threads unicode vdpau xinerama zlib" ABI_X86="64" 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="actions alias auth_basic authn_alias authn_anon authn_core authn_dbm authn_file authz_core authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif socache_shmcb speling status unique_id unixd userdir usertrack vhost_alias authz_host cgi dir mime auth_basic auth_digest authn_alias authn_default authz_default authz_groupfile authz_owner authz_user userdir access_compat" CALLIGRA_FEATURES="karbon kexi krita sheets" 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 ublox ubx" INPUT_DEVICES="synaptics keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="ru ru_RU" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2 python3_3" QEMU_SOFTMMU_TARGETS="x86_64" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="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, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, USE_PYTHON