During configure, error "configure: error: You must enable one of the platform bindings" occurs. Reproducible: Always cattie ~ # emerge --info Portage 2.2_rc15 (default/linux/x86/2008.0/desktop, gcc-4.3.2, glibc-2.8_p20080602-r0, 2.6.27-gentoo-r4 i686) ================================================================= System uname: Linux-2.6.27-gentoo-r4-i686-Genuine_Intel-R-_CPU_T2600_@_2.16GHz-with-glibc2.0 Timestamp of tree: Sun, 30 Nov 2008 17:37:04 +0000 app-shells/bash: 3.2_p48 dev-java/java-config: 1.3.7-r1, 2.1.6-r1 dev-lang/python: 2.4.4-r15, 2.5.2-r8 dev-python/pycrypto: 2.0.1-r6 dev-util/cmake: 2.6.2 sys-apps/baselayout: 2.0.0 sys-apps/openrc: 0.3.0-r1 sys-apps/sandbox: 1.2.18.1-r3 sys-devel/autoconf: 2.13, 2.63 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.19 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 2.2.6a virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="x86 ~x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=prescott -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/config /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/udev/rules.d" CXXFLAGS="-O2 -march=prescott -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="collision-protect distlocks fixpackages metadata-transfer parallel-fetch preserve-libs protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS=" ftp://ftp.sh.cvut.cz/MIRRORS/gentoo/gentoo ftp://ftp.linux.cz/pub/linux/gentoo http://gentoo.inode.at/ ftp://213.186.33.38/gentoo-distfiles/ http://gentoo.inf.elte.hu/" LANG="cs_CZ.UTF-8" LC_ALL="cs_CZ.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--sort-common" LINGUAS="cs" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" 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" PORTDIR_OVERLAY="/usr/local/portage /usr/local/portage/bzr-gentoo-overlay" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X a52 aac aalib accessibility acl acpi alsa apache2 aspnet aspnetedit avi bash-completion berkdb bluetooth branding bzip2 cairo cdr cli cracklib crypt css cups dbus directfb divx4linux dri dvd dvdr dvdread eds emboss encode evo examples exif faad fam fbcon ffmpeg firebird firefox firefox3 fortran ftp gdbm gif git gnutls gpm gstreamer gtk gtk2 hal http iconv imap inotify ipod ipv6 isdnlog jabber java java5 java6 jpeg jpeg2k jython kde kdeenablefinal laptop ldap libnotify logitech-mouse logrotate mad midi mikmod mmx mmx2 mng mono moonlight mp3 mpeg mplayer mudflap mysql ncurses networkmanager nls nptl nptlonly nsplugin nvidia ogg opengl openmp oss pam pch pcmcia pcre pdf perl png pnp postgres ppds pppd python qt qt3 qt3support qt4 quicktime readline reflection ruby samba sasl sdl seamonkey session smp spell spl sqlite sqlite3 sse sse2 ssl startup-notification subversion svg swig sysfs tcpd theora tiff truetype unicode usb utf8 vim vim-syntax vorbis webkit wifi win32codecs wireshark x264 x86 xcb xine xinerama xml xorg xscreensaver xulrunner xv xvid zlib zsh-completion" ALSA_CARDS="hda-intel" 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 auth_digest authn_anon authn_dbd 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 dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" CAMERAS="ptp2 canon" ELIBC="glibc" INPUT_DEVICES="keyboard mouse synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="cs" USERLAND="GNU" VIDEO_CARDS="nvidia nv vga vesa fbdev" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
USE="gnome" emerge -av monodevelop fixes this bug.
Fixed in cvs, gnome use flag dropped. It really isn't optional.