--- a/qtgui-5.1.0_beta1.ebuild    2013-06-08 12:44:09.682978309 +0200
+++ b/qtgui-5.1.0_beta1.ebuild    2013-06-09 13:41:19.063328718 +0200
@@ -85,6 +85,7 @@
        QCONFIG_DEFINE="$(use accessibility && echo QT_ACCESSIBILITY_ATSPI_BRIDGE || echo QT_NO_ACCESSIBILITY_ATSPI_BRIDGE)
                        $(use eglfs && echo QT_EGLFS)
                        $(use gles2 && echo QT_EGL)
+                       $(use gles2 && echo QT_OPENGLES2)
                        $(use jpeg && echo QT_IMAGEFORMAT_JPEG)"

        qt5-build_pkg_setup