It shows: # qpkg -I -v -q bison sys-devel/bison-1.35 * DEPENDED ON BY: nhh221 ~ but after # emerge unmerge bison # emerge -upD world I got : # emerge -upD world These are the packages that I would merge, in order: Calculating world dependencies ...done! [ebuild U ] sys-devel/libperl-5.8.2 [5.8.0] [ebuild U ] dev-lang/perl-5.8.2-r1 [5.8.0-r12] [ebuild N ] net-ftp/curl-7.10.8-r1 [ebuild N ] sys-devel/bison-1.875 [ebuild N ] app-shells/sash-3.6 [ebuild U ] net-analyzer/nmap-3.50 [3.48] Reproducible: Always Steps to Reproduce: 1. 2. 3. Expected Results: If bison is not required - see the output of qpkg - why emerge want to install it ? # emerge info Portage 2.0.49-r20 (default-x86-1.4, gcc-3.2.3, glibc-2.3.2-r9, 2.4.24-grsec-1.9.13) ================================================================= System uname: 2.4.24-grsec-1.9.13 i686 Pentium III (Coppermine) Gentoo Base System version 1.4.3.10p1 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-march=pentium3 -O3 -pipe" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.1/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-march=pentium3 -O3 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="http://gentoo.linux.no/ http://gentoo.oregonstate.edu http://www.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X apache2 apm arts avi berkdb crypt cups encode esd foomaticdb gd gdbm gif gpm gtk2 imlib innodb java jbig jpeg kde lcms libg++ libwww mad mbox mikmod motif mpeg mysql ncurses nls oggvorbis opengl oss pam pcmcia pdflib perl png python qt quicktime readline sdl slang slp snmp spell ssl svga tcltk tcpd tiff truetype usb wmf x86 xml2 xv zlib linguas_de"
sys-devel/bison is in every architectures default profile, so it get's reemerged by default.