If ACKd by the arm team, I can add ~arm myself. Tested the following on armv7a: # munin[minimal]* dev-perl/Net-SNMP ** dev-perl/Log-Log4perl ** dev-perl/net-server ** dev-perl/Net-CIDR ** dev-perl/Net-Netmask ** dev-perl/IO-Multiplex ** dev-perl/Crypt-DES ** virtual/perl-Getopt-Long ** perl-core/Getopt-Long ** %% emerge --info Portage 2.1.7.16 (default/linux/arm/10.0, gcc-4.3.4, glibc-2.10.1-r1, 2.6.31.12-ER1-efikamx armv7l) ================================================================= System uname: Linux-2.6.31.12-ER1-efikamx-armv7l-ARMv7_Processor_rev_1_-v7l-with-gentoo-1.12.13 Timestamp of tree: Tue, 16 Feb 2010 21:45:01 +0000 app-shells/bash: 4.0_p35 dev-lang/python: 2.6.4 sys-apps/baselayout: 1.12.13 sys-apps/sandbox: 1.6-r2 sys-devel/autoconf: 2.63-r1 sys-devel/automake: 1.10.2 sys-devel/binutils: 2.19.1-r1 sys-devel/gcc: 4.3.4 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6b virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="arm" ACCEPT_LICENSE="* -@EULA" CBUILD="armv7a-unknown-linux-gnueabi" CFLAGS="-Os -pipe -march=armv7-a -mfpu=vfp -mfloat-abi=softfp" CHOST="armv7a-unknown-linux-gnueabi" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-Os -pipe -march=armv7-a -mfpu=vfp -mfloat-abi=softfp" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--binpkg-respect-use" FEATURES="assume-digests distlocks fixpackages news parallel-fetch protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LDFLAGS="-Wl,-O1,--hash-style=gnu,--as-needed" LINGUAS="en" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://jolexa.net/gentoo-portage" USE="acl arm bash-completion berkdb bzip2 cli cracklib crypt cups cxx fortran gdbm gpm iconv ipv6 modules mudflap ncurses nls nptl nptlonly openmp pam pcre perl pppd python readline reflection session spl ssl sysfs tcpd unicode xorg zlib" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="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 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="fbdev glint mach64 mga nv r128 radeon savage sis tdfx trident voodoo" Unset: CPPFLAGS, CTARGET, FFLAGS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
done, with armin76's nod.