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. !!! Please attach the config.log to your bug report: !!! /var/tmp/portage/kdebase-3.4.3-r1/work/kdebase-3.4.3/config.log !!! ERROR: kde-base/kdebase-3.4.3-r1 failed. !!! Function econf, Line 495, Exitcode 0 !!! econf failed !!! If you need support, post the topmost build error, NOT this status message. Portage 2.0.54 (default-linux/x86/2005.1, gcc-3.3.5-20050130, glibc-2.3.5-r2, 2.6.14-gentoo-r5 i686) ================================================================= System uname: 2.6.14-gentoo-r5 i686 Intel(R) Celeron(R) CPU 2.66GHz Gentoo Base System version 1.6.12 dev-lang/python: 2.3.5, 2.4.2 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: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=i686 -O3 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=i686 -O3 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS=" http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror http://gentoo.intergenia.de/ " LANG="de_DE@euro" LINGUAS="de" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://192.168.64.1/portage" USE="x86 X a52 acl acpi apm arts audiofile avi berkdb bitmap-fonts browserplugin bzip2 bzlib cjk crypt cups curl dvd eds elibc_FreeBSD encode esd ethereal exif expat faac fadd fam fbcon ffmepg ffmpeg foomatic foomaticdb fortran ftp gd gdbm gdm gif gimp-print glut gmp gnome gnutls gpm gstreamer gtk gtk2 gtkhtml idn imagemagick imlib ipv6 java jpeg kerberos lcms ldap libclamav libg++ libwww mad mhash mmx mng motif mozilla mp3 mpeg mtrr mysql ncurses nls nptl nptlonly nsplugin oav ogg oggvorbis opengl oss p pam pcre pdflib perl png ppds python qt quicktime readline s samba sdl snmp spell sse sse2 ssl tcltk tcpd tetex threads tiff truetype truetype-fonts type1-fonts udev usb userlocales vcd vorbis win32codecs xine xml xml2 xmms xprint xv xvid zlib linguas_de userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LC_ALL, LDFLAGS, PORTDIR_OVERLAY
Did you just install kdelibs prior to this? Maybe your KDEDIRS hasn't been read yet. I'd recommend a quick reboot and then try kdebase again.
Stale bug, but feel free to reopen, if you still have problems.