I was not using Webkit. A very minimalist config:

-static
-release
-no-exceptions
-no-rtti
-nomake
examples
-nomake
demos
-qt-sql-sqlite
-qt-sql-odbc
-no-qt3support
-no-accessibility
-no-stl
-no-gif
-no-libpng
-no-libtiff
-no-libjpeg
-no-libmng
-no-openssl
-no-phonon
-no-multimedia
-no-script
-no-scripttools
-no-webkit
-no-qmake
-saveconfig
mycfg
-no-opengl
-no-style-cde
-no-style-motif
-no-style-plastique
-no-style-cleanlooks