klearlook seems to need kde-config but don't depend from kdelibs. # emerge klearlook [...] checking whether make sets $(MAKE)... yes checking for kde-config... not found configure: error: The important program kde-config was not found! Please check whether you installed KDE correctly. # emerge --info Portage 2.1-r1 (default-linux/x86/2006.0, gcc-3.4.4, glibc-2.3.6-r4, 2.6.17-gentoo-r4 i686) ================================================================= System uname: 2.6.17-gentoo-r4 i686 Genuine Intel(R) CPU T2300 @ 1.66GHz Gentoo Base System version 1.12.4 app-admin/eselect-compiler: [Not Present] dev-lang/python: 2.4.2 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r6 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-r3 sys-devel/gcc-config: 1.3.12-r6 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=prescott -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/X11/xkb" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-O2 -march=prescott -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig collision-protect distlocks metadata-transfer sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LANG="fr_FR" LC_ALL="fr_FR.UTF-8" LDFLAGS="-Wl,--as-needed -Wl,-O1 -Wl,-z,now" LINGUAS="fr en_GB" MAKEOPTS="-j 3" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X acpi alsa apache2 apm avi berkdb bitmap-fonts bogofilter bzip2 cdr cli crypt cups dbus dlloader dri dvd dvdr eds emboss encode ffmpeg firefox foomaticdb fortran gdbm gif glitz gnome gpm gstreamer gtk gtk2 hal imlib ipv6 isdnlog jpeg kde libg++ libwww mad mikmod mmx mmxext motif mp3 mpeg ncurses nls nptl nptlonly nvidia ogg opengl pam pcre pdflib perl png pppd python qt qt3 qt4 quicktime readline reflection samba sdl session smp spell spl sse sse2 ssl tcpd theora threadsi truetype truetype-fonts type1-fonts udev unicode v4l v4l2 vorbis widescreen xinerama xml xorg xv xvid zlib elibc_glibc input_devices_keyboard input_devices_mouse input_devices_evdev kernel_linux linguas_fr linguas_en_GB userland_GNU video_cards_none" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
kde-config is installed by KDE. Path issue, likely fubared /etc/env.d/*kde*, maybe you're a victim of bug 104174.
Well, klearlook depends only on kde-env (emerge -pe klearlook), which doesn't contain kde-config.
Ew, I neither expected to read a bug by someone who hasn't kdelibs installed at all, nor did I expect Diego to miss the need-kde() call. Fix is in cvs. Thanks for your bug report, Damien.