I tested Mozilla Firebird 0.7-r1 instead of 0.7 and everything is ok. I imagine the r1 release being some kind of bug fixes release, isn't it true ? Reproducible: Always Steps to Reproduce: Portage 2.0.49-r21 (default-alpha-1.4, gcc-3.3.2, glibc-2.3.2-r9, 2.4.21-alpha-r2) ================================================================= System uname: 2.4.21-alpha-r2 alpha EV56 Gentoo Base System version 1.4.3.10 ACCEPT_KEYWORDS="alpha" AUTOCLEAN="yes" CFLAGS="-mcpu=ev5 -O3 -pipe" CHOST="alpha-unknown-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-mcpu=ev5 -O3 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="ccache" GENTOO_MIRRORS="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.gentoo.org/gentoo-portage" USE="X alpha berkdb crypt cups encode esd ev56 foomaticdb gdbm gif gnome gpm gtk gtk2 imlib jpeg libg++ libwww mikmod motif ncurses nls oggvorbis opengl oss pam pdflib perl png postgres python quicktime readline sdl slang spell ssl tcltk tcpd truetype xml2 xmms xv zlib"
thanks, marked stable in portage