on Headless, GTK+ should never required, so it can be move optional. instead GTK+, icedtea said requred libXt during configuration. when GTK+ not included, 7.2.3.8 needed to pass --disable-system-gtk to configure parameter. 6.1.12.4 looks no needed. Reproducible: Always testbed ~ # emerge --info Portage 2.3.5-r7 (funtoo/1.0/linux-gnu/arch/arm-32bit/armv7a_hardfp, gcc-4.6.2, glibc-2.13-r4, 3.0.70 armv7l) ================================================================= System uname: Linux-3.0.70-armv7l-ARMv7_Processor_rev_0_-v7l-with-gentoo-2.2.0 KiB Mem: 2011244 total, 98432 free KiB Swap: 4194300 total, 4192380 free Timestamp of tree: Sun, 07 Apr 2013 05:45:01 +0000 ld GNU ld (GNU Binutils) 2.22 app-shells/bash: 4.2_p37 dev-java/java-config: 2.1.12-r1000 dev-lang/python: 2.7.3-r1000, 3.2.3-r1000 dev-util/cmake: 2.8.10.2-r1 sys-apps/baselayout: 2.2.0-r4 sys-apps/openrc: 0.10.2-r7 sys-apps/sandbox: 2.6 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.6.2-r1 sys-devel/gcc-config: 1.5-r1 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.4-r2 (virtual/os-headers) sys-libs/glibc: 2.13-r4 Repositories: gentoo ACCEPT_KEYWORDS="arm ~arm" ACCEPT_LICENSE="* -@EULA" CBUILD="armv7a-hardfloat-linux-gnueabi" CFLAGS="-O2 -pipe -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard" CHOST="armv7a-hardfloat-linux-gnueabi" CONFIG_PROTECT="/etc /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 /etc/udev/rules.d" CXXFLAGS="-O2 -pipe -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard" DISTDIR="/usr/portage/distfiles" 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" FFLAGS="" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--as-needed" MAKEOPTS="-j6" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="https://github.com/funtoo/ports-2012.git" SYNC_USER="root" USE="acl arm berkdb bzip2 cracklib crypt cxx gdbm iconv icu ipv6 modules mudflap ncurses nls nptl openmp pam pcre python readline resolvconf ssl tcpd unicode xml 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 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 authn_core authz_core socache_shmcb unixd" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump" 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 ubx" 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="php5-3" PYTHON_ABIS="2.7 3.2" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="fbdev omapfb" 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, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, SYNC_UMASK testbed ~ # uname -a Linux testbed.localdomain 3.0.70 #1 SMP Wed Apr 3 00:19:01 KST 2013 armv7l ARMv7 Processor rev 0 (v7l) ODROIDU2 GNU/Linux testbed ~ # more /proc/cpuinfo Processor : ARMv7 Processor rev 0 (v7l) processor : 0 BogoMIPS : 1992.29 processor : 1 BogoMIPS : 1992.29 processor : 2 BogoMIPS : 1992.29 processor : 3 BogoMIPS : 1992.29 Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x3 CPU part : 0xc09 CPU revision : 0 Hardware : ODROIDU2 Revision : 0000 Serial : 0000000000000000
Created attachment 344732 [details, diff] improvement for headless both 6 and 7. 1. added "gtk" to IUSE as optional. 2. x11-libs/gtk+-2.8:2 goes to optional (when X available and USE have "gtk"), and x11-libs/libXt-1.1.1 added to X_COMMON_DEP. 3. when gtk is not presented on USE, add --disable-system-gtk to config parameter.
--disable-system-XXX means to use the bundled copy instead, so not an option I'm afraid.
