Cannot compile thread support in qt-embedded

[Shum]

Hi. This is pretty much a repost of my last question but more to the point.

I can't seem to compile qt-embedded with thread support.
I'm using qt-embedded 4.5.3 and g++. I want to cross-compile on x86_64 for i386. I'm configuring with:

./configure \
        -opensource \
        -release \
        -embedded x86 \
        -xplatform qws/i686-pc-linux-gnu-g++ \
        -prefix /usr/crossdev/usr/local/Trolltech/QtEmbedded-4.5.3 \
        -dbus \
        -I/usr/crossdev/usr/include/dbus-1.0 \
        -I/usr/crossdev/usr/lib/dbus-1.0/include \
        -L/usr/crossdev/usr/lib \
        -ldbus-1 \
        -glib \
        -I/usr/crossdev/usr/include/glib-2.0 \
        -I/usr/crossdev/usr/lib/glib-2.0/include \
        -lglib-2.0 \
        -lgthread-2.0 \
        -lgmodule-2.0 \
        -lgobject-2.0 \
        -lpthread \
        -no-sql-psql \
        -no-qt3support \
        -no-phonon \
        -no-phonon-backend \
        -no-svg \
        -no-webkit \
        -no-scripttools \
        -no-gif \
        -no-libtiff \
        -qt-libpng \
        -qt-libmng \
        -qt-libjpeg \
        -no-openssl \
        -nomake "examples demos docs" \
        -v \
        -no-nis \
        -no-cups \
        -no-opengl \
        -depths 1,4,8,16,18,24 \
        -no-rpath \
        -feature-thread

./configure \
        -opensource \
        -release \
        -embedded x86 \
        -xplatform qws/i686-pc-linux-gnu-g++ \
        -prefix /usr/crossdev/usr/local/Trolltech/QtEmbedded-4.5.3 \
        -dbus \
        -I/usr/crossdev/usr/include/dbus-1.0 \
        -I/usr/crossdev/usr/lib/dbus-1.0/include \
        -L/usr/crossdev/usr/lib \
        -ldbus-1 \
        -glib \
        -I/usr/crossdev/usr/include/glib-2.0 \
        -I/usr/crossdev/usr/lib/glib-2.0/include \
        -lglib-2.0 \
        -lgthread-2.0 \
        -lgmodule-2.0 \
        -lgobject-2.0 \
        -lpthread \
        -no-sql-psql \
        -no-qt3support \
        -no-phonon \
        -no-phonon-backend \
        -no-svg \
        -no-webkit \
        -no-scripttools \
        -no-gif \
        -no-libtiff \
        -qt-libpng \
        -qt-libmng \
        -qt-libjpeg \
        -no-openssl \
        -nomake "examples demos docs" \
        -v \
        -no-nis \
        -no-cups \
        -no-opengl \
        -depths 1,4,8,16,18,24 \
        -no-rpath \
        -feature-thread

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But I still end up with a qt toolchain that doesn't support threads and I can't compile my qt apps. Any ideas?
I've been poring through the source code and the build scripts trying to find a clue with no luck. Any help would be greatly appreciated.