[Development] Moving build-time tools into qtbase.git.

[Stephen Kelly]

Hi,

Currently lupdate, lrelease, qdbusxml2cpp and qdbuscpp2xml are not in the 
qtbase repo, they are in qttools instead, along with designer, qdbusviewer, 
linguist etc.

I don't think qttools is the right place for those build-time-useful tools. 

If I want to use the QtDBus module, I want to be able to use the tools to 
generate xml and c++ interfaces for dbus. 

Currently qmake has some macros for that (features/dbusadaptors.prf and 
features/dbusinterfaces.prf) which expect to be able to find the tools. 

Those macros are in qtbase. The executables may or may not be installed. They 
may even be installed to a different prefix. I am not sure if qmake actaully 
checks for their existence, or looks for them, or bails out if not found.

CMake has similar macros for generating dbus interfaces and adaptors, which 
I'll need to put somewhere in a Qt repo, probably alongside the tools. With 
the tools in their current location, that would mean:

find_package(QtDbus) # For libQtDBus.so
find_package(QtTools) # For qdbusxml2cpp, and designer, linguist, etc.

designer and linguist don't really have anything to do with these build-time 
tools. It would be much more sensible to have find_package(QtDbus) also find 
the executables, but I can only do that if they come from the same repo.

For lupdate the situation is a bit more complicated because it depends on 
qmldevtools, but that's solvable. 

For now I'm interested in floating the general idea of putting build-time-
tools into qtbase.git instead of qttools.git. I don't know why they were moved 
out in the first place, so maybe the same reason would keep them in qttools.

Thanks,

-- 
Stephen Kelly <stephen at kdab.com> | Software Engineer
KDAB (Deutschland) GmbH & Co.KG, a KDAB Group Company
www.kdab.com || Germany +49-30-521325470 || Sweden (HQ) +46-563-540090
KDAB - Qt Experts - Platform-Independent Software Solutions
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