[Gentoo]problema emerge di un pacchetto

[86frame]

Ciao a tutti,
ho un problema con l'aggionramento di Gentoo,qunado faccio emerge -uD wolrd mi da errore in un pacchetto e non risco a capire come risolverlo ....qualcuno sa cosa dovrei fare?grazie in anticipo a tutti!
qui l'errore:

* Messages for package x11-libs/pixman-0.9.5:

 *
 * ERROR: x11-libs/pixman-0.9.5 failed.
 * Call stack:
 *          ebuild.sh, line 1684:  Called dyn_compile
 *          ebuild.sh, line 1020:  Called qa_call 'src_compile'
 *          ebuild.sh, line   44:  Called src_compile
 *          ebuild.sh, line 1364:  Called x-modular_src_compile
 *   x-modular.eclass, line  337:  Called x-modular_src_make
 *   x-modular.eclass, line  332:  Called die
 * The specific snippet of code:
 *      emake || die "emake failed"
 *  The die message:
 *   emake failed
 *
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/tmp/portage/x11-libs/pixman-0.9.5/temp/build.log'.
 *
 * GNU info directory index is up-to-date.

[GreyFox86]

posta pure gli errori del compilatore se puoi, la call stack dice poco da sola

[86frame]

dovrebbe essere questo:
(l'ho preso in /var/tmp/portage/x11-libs/pixman-0.9.5/temp/build.log
posto solo la parte finale che dovrebbe aver dato errore...se serve lo posso postare tutto)

dir .libs/libpixman-1.lax/libpixman-mmx.a
(cd .libs/libpixman-1.lax/libpixman-mmx.a && i686-pc-linux-gnu-ar x /var/tmp/portage/x11-libs/pixman-0.9.5/work/pixman-0.9.5/pixman/./.libs/libpixman-mmx.a)
i686-pc-linux-gnu-ar cru .libs/libpixman-1.a  pixman-region.o pixman-image.o pixman-compose.o pixman-pict.o pixman-utils.o pixman-edge.o pixman-trap.o pixman-compute-region.o pixman-timer.o  .libs/libpixman-1.lax/libpixmanwrapper.a/libpixmanwrapper_la-pixman-compose.o .libs/libpixman-1.lax/libpixmanwrapper.a/libpixmanwrapper_la-pixman-edge.o  .libs/libpixman-1.lax/libpixman-mmx.a/libpixman_mmx_la-pixman-mmx.o
i686-pc-linux-gnu-ranlib .libs/libpixman-1.a
rm -fr .libs/libpixman-1.lax
creating libpixman-1.la
(cd .libs && rm -f libpixman-1.la && ln -s ../libpixman-1.la libpixman-1.la)
make[2]: Leaving directory `/var/tmp/portage/x11-libs/pixman-0.9.5/work/pixman-0.9.5/pixman'
Making all in test
make[2]: Entering directory `/var/tmp/portage/x11-libs/pixman-0.9.5/work/pixman-0.9.5/test'
i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I.. -I../pixman -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng12      -march=pentium4 -O3 -pipe -Wall -MT composite-test.o -MD -MP -MF .deps/composite-test.Tpo -c -o composite-test.o composite-test.c
composite-test.c: In function 'main':
composite-test.c:111: warning: unused variable 'j'
mv -f .deps/composite-test.Tpo .deps/composite-test.Po
/bin/sh ../libtool --tag=CC   --mode=link i686-pc-linux-gnu-gcc  -march=pentium4 -O3 -pipe -Wall   -o composite-test composite-test.o ../pixman/libpixman-1.la -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0
mkdir .libs
i686-pc-linux-gnu-gcc -march=pentium4 -O3 -pipe -Wall -o .libs/composite-test composite-test.o  ../pixman/.libs/libpixman-1.so /usr/lib/libgtk-x11-2.0.so /usr/lib/libgdk-x11-2.0.so /usr/lib/libatk-1.0.so /usr/lib/libgdk_pixbuf-2.0.so /usr/lib/libpangocairo-1.0.so /usr/lib/libXrender.so /usr/lib/libX11.so /usr/lib/libXau.so /usr/lib/libXdmcp.so /usr/lib/libpangoft2-1.0.so /usr/lib/libpango-1.0.so /usr/lib/libcairo.so /usr/lib/libfreetype.so /usr/lib/libfontconfig.so /usr/lib/libexpat.so /usr/lib/libpng12.so -lz -lm /usr/lib/libgobject-2.0.so /usr/lib/libgmodule-2.0.so -ldl /usr/lib/libglib-2.0.so
/usr/lib/libgdk-x11-2.0.so: undefined reference to `cairo_xlib_surface_create_for_bitmap'
/usr/lib/libgdk-x11-2.0.so: undefined reference to `cairo_xlib_surface_set_size'
/usr/lib/libgdk-x11-2.0.so: undefined reference to `cairo_xlib_surface_create'
collect2: ld returned 1 exit status
make[2]: *** [composite-test] Error 1
make[2]: Leaving directory `/var/tmp/portage/x11-libs/pixman-0.9.5/work/pixman-0.9.5/test'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/x11-libs/pixman-0.9.5/work/pixman-0.9.5'
make: *** [all] Error 2
 ^[[31;01m*^[[0m
 ^[[31;01m*^[[0m ERROR: x11-libs/pixman-0.9.5 failed.
 ^[[31;01m*^[[0m Call stack:
 ^[[31;01m*^[[0m          ebuild.sh, line 1684:  Called dyn_compile
 ^[[31;01m*^[[0m          ebuild.sh, line 1020:  Called qa_call 'src_compile'
 ^[[31;01m*^[[0m          ebuild.sh, line   44:  Called src_compile
 ^[[31;01m*^[[0m          ebuild.sh, line 1364:  Called x-modular_src_compile
 ^[[31;01m*^[[0m   x-modular.eclass, line  337:  Called x-modular_src_make
 ^[[31;01m*^[[0m   x-modular.eclass, line  332:  Called die
 ^[[31;01m*^[[0m The specific snippet of code:
 ^[[31;01m*^[[0m        emake || die "emake failed"
 ^[[31;01m*^[[0m  The die message:
 ^[[31;01m*^[[0m   emake failed
 ^[[31;01m*^[[0m
 ^[[31;01m*^[[0m If you need support, post the topmost build error, and the call stack if relevant.
 ^[[31;01m*^[[0m A complete build log is located at '/var/tmp/portage/x11-libs/pixman-0.9.5/temp/build.log'.

[GreyFox86]

sembra abbia problemi con le cairo... sono installate con le use giuste? (ad esempio io nelle cairo ho le use X, glitz e opengl abilitate.