fontconfig-2.1-r1.ebuild seems to render fonts unusable under Xfree, KDE and mozilla. Probably related to the xfree cvs patches making the difference with plain 2.1 ebuild.
ibook root # emerge info Portage 2.0.46-r9 (default-ppc-1.4, gcc-3.2.1, glibc-2.3.1-r2) ================================================================= System uname: 2.4.20-ben1 ppc GENTOO_MIRRORS="http://www.ibiblio.org/pub/Linux/distributions/gentoo" CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/share/config /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" PORTDIR="/usr/portage" DISTDIR="/usr/portage/distfiles" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR_OVERLAY="" USE="xv nls mitshm ppc gnome-libs berkdb slang readline tetex bonobo guile gpm pam libwww perl python qt kde opengl cdr scanner X gtk gtk2 gnome gnome2 arts motif tcltk imlib ncurses sdl gif jpeg tiff png avi mpeg quicktime esd oss dvd oggvorbis encode xmms ssl crypt socks5 tcpd mozilla spell truetype xml2 pdflib mysql gdbm cups java -alsa" COMPILER="gcc3" CHOST="powerpc-unknown-linux-gnu" CFLAGS="-O3 -pipe -mcpu=750 -mpowerpc-gfxopt -fsigned-char" CXXFLAGS="-O3 -pipe -mcpu=750 -mpowerpc-gfxopt -fsigned-char" ACCEPT_KEYWORDS="ppc" MAKEOPTS="-j2" AUTOCLEAN="yes" SYNC="cvs://doctomoe@gentoo.org:/home/cvsroot" FEATURES="ccache digest noauto"
This is resolved with the kdelibs and qt rebuild, closing