When I try to emerge qt, I always get this error: [...] /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.5/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lGL collect2: ld returned 1 exit status make[3]: *** [../../lib/libQtOpenGL_debug.so.4.1.2] Error 1 make[3]: Leaving directory `/var/tmp/portage/qt-4.1.2/work/qt-x11-opensource-src-4.1.2/src/opengl' make[2]: *** [debug-all] Error 2 g++ -c -m64 -pipe -I/usr/include/mysql -march=k8 -pipe -O2 -Wall -W -D_REENTRANT -fPIC -DQT_SHARED -DQT_BUILD_OPENGL_LIB -DQT_NO_CAST_TO_ASCII -DQT3_SUPPORT -DQT_MOC_COMPAT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I../../mkspecs/linux-g++-64 -I. -I../../include/QtCore -I../../include/QtGui -I../../include -I../../include/QtOpenGL -I/usr/include/freetype2 -I/usr/include -I/usr/include -I.moc/release-shared -I. -o .obj/release-shared/moc_qgl.o .moc/release-shared/moc_qgl.cpp make[2]: *** Waiting for unfinished jobs.... rm -f libQtOpenGL.so.4.1.2 libQtOpenGL.so libQtOpenGL.so.4 libQtOpenGL.so.4.1 g++ -m64 -shared -Wl,-soname,libQtOpenGL.so.4 -o libQtOpenGL.so.4.1.2 .obj/release-shared/qgl.o .obj/release-shared/qglcolormap.o .obj/release-shared/qpaintengine_opengl.o .obj/release-shared/qglpixelbuffer.o .obj/release-shared/qgl_x11.o .obj/release-shared/qglpixelbuffer_x11.o .obj/release-shared/moc_qgl.o -L/usr/lib64 -L/usr/lib64/mysql -L/var/tmp/portage/qt-4.1.2/work/qt-x11-opensource-src-4.1.2/lib -lGLU -lGL -lQtGui -L/usr/lib64 -L/usr/lib64/mysql -L/var/tmp/portage/qt-4.1.2/work/qt-x11-opensource-src-4.1.2/lib -lpng -lSM -lICE -lXi -lXrender -lXrandr -lXcursor -lfreetype -lfontconfig -lXext -lX11 -lQtCore -lz -lm -lpthread -ldl /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.5/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lGL collect2: ld returned 1 exit status make[3]: *** [../../lib/libQtOpenGL.so.4.1.2] Error 1 make[3]: Leaving directory `/var/tmp/portage/qt-4.1.2/work/qt-x11-opensource-src-4.1.2/src/opengl' make[2]: *** [release-all] Error 2 make[2]: Leaving directory `/var/tmp/portage/qt-4.1.2/work/qt-x11-opensource-src-4.1.2/src/opengl' make[1]: *** [sub-opengl-all-ordered] Error 2 make[1]: Leaving directory `/var/tmp/portage/qt-4.1.2/work/qt-x11-opensource-src-4.1.2/src' make: *** [sub-src-all-ordered] Error 2 !!! ERROR: x11-libs/qt-4.1.2 failed. !!! Function src_compile, Line 152, Exitcode 2 !!! (no error message) !!! If you need support, post the topmost build error, NOT this status message. # emerge --info: Portage 2.0.54-r2 (default-linux/amd64/2005.1, gcc-3.4.5, glibc-2.3.6-r3, 2.6.16-gentoo-r7 x86_64) ================================================================= System uname: 2.6.16-gentoo-r7 x86_64 AMD Athlon(tm) 64 Processor 3200+ Gentoo Base System version 1.6.14 dev-lang/python: 2.3.5-r2, 2.4.2 dev-python/pycrypto: [Not Present] dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 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-r2 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=k8 -pipe -O2" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/lib/X11/xkb /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/" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /usr/X11R6/bin/startx /etc/env.d" CXXFLAGS="-march=k8 -pipe -O2" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LINGUAS="fi ru en" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 X a52 alsa arts asf audiofile avi berkdb bitmap-fonts bzip2 cdr cli crypt cups curl doc dri dvd dvdr dvdread eds emboss encode esd exif expat fam ffmpeg foomaticdb fortran gd gdbm gif glut gmp gnome gphoto2 gpm gstreamer gtk gtk2 hal idn imagemagick imlib ipv6 isdnlog java javascript jpeg kde lcms libwww lzw lzw-tiff mad mng mozilla mp3 mpeg mysql ncurses nls ogg openal opengl pam pcre pdflib perl png pppd python qt quicktime readline reflection sdl session spell spl ssl tcltk tcpd tetex tiff truetype truetype-fonts type1-fonts udev unicode usb ved vorbis xine xml2 xmms xorg xpm xv xvid zlib linguas_fi linguas_ru linguas_en userland_GNU kernel_linux elibc_glibc" Unset: CTARGET, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTAGE_RSYNC_OPTS, PORTDIR_OVERLAY There is a thread on emerge qt at http://forums.gentoo.org/viewtopic-t-466755-highlight-.html
Upgrade eselect-opengl to 1.0.3 if you haven't done so yet, and run 'eselect opengl set xorg-x11' (or nvidia or ati or whatever else you are using). Not a QT bug.
