[cmake-developers] cmake automoc breaks kde

Alexander Neundorf neundorf at kde.org
Thu Nov 3 14:47:02 EDT 2011

On Wednesday 02 November 2011, Stephen Kelly wrote:
> On 11/02/2011 06:32 PM, David Faure wrote:
> > On Monday 31 October 2011 21:47:31 Alexander Neundorf wrote:
> > No, it's the other way around, in KDE. $ grep Q_OBJECT kautosavefile.*
> > kautosavefile.h: Q_OBJECT $ grep moc kautosavefile.cpp #include
> > "kautosavefile.moc"
> > 
> >> If it did additionally other things, this was more or less
> >> accidentially.
> > 
> > How does qmake handle such cases ?
> > Checking....
> > Indeed qmake expects moc_foo.cpp for the standard case (Q_OBJECT in
> > header). This is why kde4automoc was made to support both moc filenames,
> > so that it could be compatible with the kde way of doing it (foo.moc)
> > and with the qmake way of doing it (moc_foo.cpp).
> > 
> > Oh well, if you want to stick to that we'll change all of KDE, for the
> > benefit of a clearer future indeed... At least it won't be an source
> > incompatible change for app developers since they will have to enable
> > CMAKE_AUTOMOC to get into this situation. Merely upgrading cmake or KDE
> > (even to frameworks 5) won't trigger it. OK not exactly,
> > find_package(kde4) will stop working so they will -have- to port to
> > CMAKE_AUTOMOC, it will be the only solution available...
> If cmake in master is already doing what qmake does wrt the names of
> these files, and KDE wants the opposite, maybe we can make
> enable the opposite, and then we in KDE can actively port away from it
> without needing it immediately.

I'll work on it as soon as I find the time, probably Sunday.
I think I'll use qmake as reference, and if we need something different in 
KDE, support that too, but warn about it.


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