Здравейте,
Провери дали версиите ти на Glib, GTK са същите или по-нови:
>=dev-libs/glib-2.8.2 dev-libs/glib-2.10.3
>=dev-libs/libIDL-0.8.0 dev-libs/libIDL-0.8.6
>=dev-libs/nspr-4.6.1 dev-libs/nspr-4.6.2
>=dev-libs/nss-3.10 dev-libs/nss-3.11.1-r1
>=media-libs/jpeg-6b media-libs/jpeg-6b-r7
>=media-libs/libmng-1.0.0 media-libs/libmng-1.0.9
>=media-libs/libpng-1.2.1 media-libs/libpng-1.2.10
>=sys-devel/binutils-2.16.1 sys-devel/binutils-2.16.1-r2
>=sys-libs/zlib-1.1.4 sys-libs/zlib-1.2.3
>=www-client/mozilla-launcher-1.39 www-client/mozilla-launcher-1.51
>=www-client/mozilla-launcher-1.42 www-client/mozilla-launcher-1.51
>=x11-libs/cairo-1.0.0 x11-libs/cairo-1.0.4
>=x11-libs/gtk+-2.8.6 x11-libs/gtk+-2.8.18
>=x11-libs/pango-1.10.1 x11-libs/pango-1.12.2
аpp-arch/unzip app-arch/unzip-5.52-r1
app-arch/zip app-arch/zip-2.31-r1
dev-libs/expat dev-libs/expat-2.0.0
dev-util/pkgconfig dev-util/pkgconfig-0.20
sys-devel/autoconf sys-devel/autoconf-2.59-r7
sys-devel/automake sys-devel/automake-1.9.6-r2
sys-devel/gnuconfig sys-devel/gnuconfig-20060227
sys-devel/libtool sys-devel/libtool-1.5.22
|| x11-libs/libXmu x11-libs/libXmu-1.0.2
|| x11-libs/libXrender x11-libs/libXrender-0.9.1
|| x11-libs/libXt x11-libs/libXt-1.0.2
~sys-devel/autoconf-2.13 sys-devel/autoconf-2.13
...END...
Оставих целият листинг просто за пълнота

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Отдясно са инсталираните при мен версии, отляво минималната изисквана версия.
Успех.Румен