[Interest] Output-variable signature of qt_wrap_cpp deprecated

[Jonas Kvinge]

Hi,

I recently see the following warning:

CMake Warning at
/usr/local/qt6/lib64/cmake/Qt6Core/Qt6CoreMacros.cmake:184 (message):
  You are using the output-variable signature of qt6_wrap_cpp(), which
is
  deprecated.  Instead, use the newer signature that takes the target
as the
  first argument.  To silence this warning pass
  -DQT_NO_SHOW_OLD_QT_WRAP_CPP_WARNING=ON
Call Stack (most recent call first):
  /usr/local/qt6/lib64/cmake/Qt6Core/Qt6CoreMacros.cmake:306
(qt6_wrap_cpp)
  src/CMakeLists.txt:996 (qt_wrap_cpp)

When switching to the new syntax which takes the target as the first
argument, I don't see any way to get a list of the produced moc files
as a variable like before, is this not possible?
I currently use these to automatically produce a .pot file for gettext
translations. I assume the old syntax will be removed in the future, in
case it's not possible to get a variable of the produced files like
before, this will be an issue.

Jonas