dev-db/oracle-instantclient-basic is a binary package and is linked against a pre gcc 3.4 libstdc++. So it should depend on sys-libs/libstdc++-v3 # ldd /usr/lib/oracle/10.2.0.1/client/lib/libocci.so.10.1 libstdc++.so.5 => /usr/lib/libstdc++-v3/libstdc++.so.5 (0x00002aaaaacf4000) libm.so.6 => /lib/libm.so.6 (0x00002aaaaaece000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00002aaaab054000) libc.so.6 => /lib/libc.so.6 (0x00002aaaab15f000) /lib64/ld-linux-x86-64.so.2 (0x0000555555554000) # emerge --info Gentoo Base System version 1.12.0_pre15 Portage 2.1_pre4-r1 (default-linux/amd64/2005.0, gcc-3.4.5, glibc-2.3.6-r2, 2.6.15-gentoo-r3 x86_64) ================================================================= System uname: 2.6.15-gentoo-r3 x86_64 AMD Athlon(tm) 64 Processor 3500+ ccache version 2.4 [enabled] dev-lang/python: 2.4.2-r1 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1-r1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r3 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="" ANT_HOME="/usr/share/ant-core" ARCH="amd64" AUTOCLEAN="yes" BASH_ENV="/etc/spork/is/not/valid/profile.env" CAMERAS="soundvision" CBUILD="x86_64-pc-linux-gnu" CDEFINE_amd64="__x86_64__" CDEFINE_x86="__i386__" CFLAGS="-march=athlon64 -mtune=athlon64 -O2 -pipe" CFLAGS_x86="-m32 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib" CHOST="x86_64-pc-linux-gnu" CHOST_amd64="x86_64-pc-linux-gnu" CHOST_x86="i686-pc-linux-gnu" CLASSPATH="." CLEAN_DELAY="5" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/3/share/config /usr/share/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/env.d" CVS_RSH="ssh" CXXFLAGS="-march=athlon64 -mtune=athlon64 -O2 -pipe" C_INCLUDE_PATH="/usr/lib/oracle/10.2.0.1/client/include" DCCC_PATH="/usr/lib/distcc/bin" DEFAULT_ABI="amd64" DISPLAY=":0" DISTCC_LOG="" DISTCC_VERBOSE="0" DISTDIR="/usr/portage/distfiles" EDITOR="/bin/nano" ELIBC="glibc" EMERGE_WARNING_DELAY="10" FEATURES="autoconfig ccache distlocks sandbox sfperms strict" FETCHCOMMAND="/usr/bin/wget -t 5 --passive-ftp -P ${DISTDIR} ${URI}" GCC_SPECS="" GDK_USE_XFT="1" GENTOO_MIRRORS="ftp://ftp.easynet.nl/mirror/gentoo/ ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" G_BROKEN_FILENAMES="1" HISTCONTROL="ignoreboth" HOME="/root" HOSTNAME="manuel" INFOPATH="/usr/share/info:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.16.1/info:/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.5/info" INPUT_DEVICES="evdev keyboard" JAVAC="/opt/blackdown-jdk-1.4.2.03/bin/javac" JAVA_HOME="/opt/blackdown-jdk-1.4.2.03" JDK_HOME="/opt/blackdown-jdk-1.4.2.03" KDEDIRS="/usr" KERNEL="linux" LANG="en_US.UTF-8" LC_ADDRESS="nl_NL.UTF-8" LC_COLLATE="nl_NL.UTF-8" LC_CTYPE="nl_NL.UTF-8" LC_IDENTIFICATION="nl_NL.UTF-8" LC_MEASUREMENT="nl_NL.UTF-8" LC_MESSAGES="en_US.UTF-8" LC_MONETARY="nl_NL.UTF-8" LC_NAME="nl_NL.UTF-8" LC_NUMERIC="nl_NL.UTF-8" LC_PAPER="nl_NL.UTF-8" LC_TELEPHONE="nl_NL.UTF-8" LC_TIME="nl_NL.UTF-8" LDFLAGS_x86="-m elf_i386 -L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib" LESS="-R -M --shift 5" LESSOPEN="|lesspipe.sh %s" LIBDIR_amd64="lib64" LIBDIR_x86="lib32" LINGUAS="en nl" LOGNAME="root" LS_COLORS="no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.qt=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.pdf=00;32:*.ps=00;32:*.txt=00;32:*.patch=00;32:*.diff=00;32:*.log=00;32:*.tex=00;32:*.doc=00;32:*.flac=01;35:*.mp3=01;35:*.mpc=00;36:*.ogg=00;36:*.wav=00;36:*.mid=00;36:*.midi=00;36:*.au=00;36:*.flac=00;36:*.aac=00;36:" MAKEOPTS="-j2" MANPATH="/usr/local/share/man:/usr/share/man:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.16.1/man:/usr/share/gcc-data/x86_64-pc-linux-gnu/3.4.5/man::/opt/blackdown-jdk-1.4.2.03/man:/usr/qt/3/doc/man" MULTILIB_ABIS="x86 amd64" MULTILIB_STRICT_DENY="64-bit.*shared object" MULTILIB_STRICT_DIRS="/lib /usr/lib /usr/kde/*/lib /usr/qt/*/lib /usr/X11R6/lib" MULTILIB_STRICT_EXEMPT="(perl5|gcc|gcc-lib|eclipse-3|debug|portage)" OLDPWD="/boot" OPENGL_PROFILE="nvidia" ORACLE_HOME="/usr/lib/oracle/10.2.0.1/client" PAGER="/usr/bin/less" PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/3.4.5:/opt/blackdown-jdk-1.4.2.03/bin:/opt/blackdown-jdk-1.4.2.03/jre/bin:/usr/bin:/usr/kde/3.5/sbin:/usr/kde/3.5/bin:/usr/qt/3/bin" PKGDIR="/usr/portage/packages" PORTAGE_ARCHLIST="ppc s390 amd64 ppc64 m68k arm sparc sh mips ia64 alpha ppc-macos hppa x86" PORTAGE_BINHOST_CHUNKSIZE="3000" PORTAGE_CALLER="emerge" PORTAGE_GID="250" PORTAGE_MASTER_PID="28569" PORTAGE_NICENESS="15" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/etc/portage/overlay" PRELINK_PATH="" PRELINK_PATH_MASK="/usr/lib/klibc" PWD="/root" PYTHONDOCS="/usr/share/doc/python-docs-2.4.2/html" PYTHONPATH="/usr/lib/portage/pym" QMAKESPEC="linux-g++" QTDIR="/usr/qt/3" RESUMECOMMAND="/usr/bin/wget -c -t 5 --passive-ftp -P ${DISTDIR} ${URI}" RPMDIR="/usr/portage/rpm" RSYNC_RETRIES="3" RSYNC_TIMEOUT="180" SHELL="/bin/bash" SHLVL="1" SYMLINK_LIB="yes" SYNC="rsync://rsync.de.gentoo.org/gentoo-portage" TERM="xterm" TNS_ADMIN="/etc/oracle" USE="amd64 X alsa avi bash-completion berkdb bitmap-fonts bzip2 cjk crypt dvdr dvdread eds emboss flac foomaticdb fortran gif gpm gstreamer gtk gtk2 hal imlib jpeg kde kdeenablefinal lzw lzw-tiff mp3 mpeg ncurses nls nptl nptlonly ogg opengl pam pcre pdflib perl pic png python qt quicktime readline sdl ssl tcpd tiff truetype truetype-fonts type1-fonts unicode usb userlocales vorbis xcomposite xml xml2 xpm xv zlib elibc_glibc input_devices_evdev input_devices_keyboard kernel_linux linguas_en linguas_nl userland_GNU video_cards_nvidia" USER="root" USERLAND="GNU" USE_EXPAND="DVB_CARDS ELIBC FCDSL_CARDS FRITZCAPI_CARDS INPUT_DEVICES KERNEL LINGUAS USERLAND VIDEO_CARDS" USE_EXPAND_HIDDEN="" USE_ORDER="env:pkg:conf:defaults" VIDEO_CARDS="nvidia" XARGS="xargs -r" XAUTHORITY="/root/.xauthaRCsfp" _="/usr/bin/emerge"
Added RDEPEND="|| ( =sys-libs/libstdc++-v3-3.3* =sys-devel/gcc-3.3* )". Fixed in CVS, thanks Harm!