[webkit-qt] heads-up: Qt 5 update

[Hausmann Simon]

Hi,

As part of https://bugs.webkit.org/show_bug.cgi?id=94290 the CSSGrammary.y will 
be run through the pre-processor before being fed into bison. We do something 
like that in multiple places in the build system and traditionally we've used
moc's builtin pre-processor for that purpose (because otherwise for Windows
MSVC builds people would also have to install GNU cpp, because nobody has made
cl.exe /e work yet). Unfortunately the bison grammar triggers a bug in moc that
made it unsuitable. However I fixed the bug last Friday and we've had the luck of
the fix propagating into qt5.git last night. Therefore we'd like to update the
Qt 5 version required for building the Qt port some time next week, in order to
land the patch in bug #94290.


Simon