Dev-libs/boost fails during compiling stage

[2bdkid]

Not quite sure why it's failing to build. I can't find a clear answer in the build log but here it is:

https://dl.dropboxusercontent.com/u/74532228/build.log

And here's this:

emerge --info '=dev-libs/boost-1.52.0-r7::gentoo'
Portage 2.2.8-r1 (default/linux/amd64/13.0/desktop, gcc-4.7.3, glibc-2.19-r1, 3.12.21-gentoo-r1 x86_64)
=================================================================
System Settings
=================================================================
System uname: Linux-3.12.21-gentoo-r1-x86_64-Intel-R-_Core-TM-_i5-3570K_CPU_@_3.40GHz-with-gentoo-2.2
KiB Mem: 16380648 total, 12695468 free
KiB Swap: 15625212 total, 15625212 free
Timestamp of tree: Wed, 30 Jul 2014 14:15:01 +0000
ld GNU ld (Gentoo 2.23.2 p1.0) 2.23.2
app-shells/bash: 4.2_p45
dev-java/java-config: 2.2.0
dev-lang/python: 2.7.6, 3.3.3
dev-util/cmake: 2.8.12.2-r1
dev-util/pkgconfig: 0.28-r1
sys-apps/baselayout: 2.2
sys-apps/openrc: 0.12.4
sys-apps/sandbox: 2.6-r1
sys-devel/autoconf: 2.69
sys-devel/automake: 1.11.6, 1.12.6, 1.13.4
sys-devel/binutils: 2.23.2
sys-devel/gcc: 4.7.3-r1
sys-devel/gcc-config: 1.7.3
sys-devel/libtool: 2.4.2-r1
sys-devel/make: 3.82-r4
sys-kernel/linux-headers: 3.13 (virtual/os-headers)
sys-libs/glibc: 2.19-r1
Repositories: gentoo
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -march=native -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/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -march=native -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs 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="ftp://ftp.ussg.iu.edu/pub/linux/gentoo http://gentoo.mirrors.tds.net/gentoo"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5"
PKGDIR="/usr/portage/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"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync25.us.gentoo.org/gentoo-portage"
USE="X a52 aac acl acpi alsa amd64 bash-completion berkdb bindist bluetooth branding bzip2 cairo cdda cdr cli consolekit cracklib crypt cscope cups curl curlwrappers cxx dbus dri dts dvd dvdr emacs emboss encode exif fam ffmpeg firefox flac fortran ftp gdbm gif gimp git gnome gnome-keyring gnutls gpm gstreamer gtk gtkhtml guile gzip hddtemp iconv icu imagemagick inotify ios ipod ipv6 java javascript jpeg jpeg2k kde lame lcms ldap libnotify mad matroska mmx mng modules mozilla mp3 mp4 mpeg mpi mplayer multilib ncurses nls nptl ogg openal opengl openmp pam pango pcre pdf perl png policykit ppds python qt3support qt4 quicktime readline samba sasl sdl session smp sound spell sqlite sse sse2 sse4_1 ssl ssse3 startup-notification suid svg symlink tcl tcpd threads tiff tk truetype udev udisks unicode upower usb vala vim-syntax vorbis webkit wxwidgets x264 xcb xml xscreensaver xv xvid 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="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="kexi words flow plan sheets stage tables krita karbon braindump author" 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" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="evdev keyboard mouse" 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="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XFCE_PLUGINS="clock trash" 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, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON

[schnitz81]

You are probably trying to build boost with the icu use flag.
https://forums.gentoo.org/viewtopic-t-996518.html

Add this to your package.use: