On 9/15/21 5:21 AM, Thiago Macieira wrote:
On Tuesday, 14 September 2021 09:03:59 PDT Joerg Bornemann wrote:
Unless QT_BUILD_TOOLS_WHEN_CROSSCOMPILING is ON which is used in yocto
context.
I don't see why Yocto Project recipes need to be special.
They don't need to be special, it's just convenient to have the tools on
the target too.
My problem as a QtCore developer is that almost anything I do will cause the
Bootstrap lib to rebuild, then moc gets relinked, then header and source with
Q_OBJECT is re-moc'ed and recompiled.
Yeah that's QTBUG-92269. This affects especially QtCore developers. :-/
When your change to use the pre-built tools is in, the problem lessens, in
that the moc that is used won't change, so I won't get everything re-moc'ed
and recompiled. However, the Bootstrap lib still gets recompiled and moc
relinked, so it's unnecessary work.
I'd like to start depopulating the Bootstrap lib so it's MUCH smaller: it
should only have what moc and tracegen need.
You can do that, with
https://codereview.qt-project.org/c/qt/qtbase/+/370954 these are the
only bootstrapped tools left: moc, tracegen and cmake_automoc_parser
(which I forgot the last time we talked about this).
BR,
Joerg
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