qt6-macros-20220207-bp154.1.1

- Ensure PIE flags are passed to the linker on Leap to work around
  an issue caused by GCC packaging (boo#1195628)

- Update to 6.2.0-rc

- Simplify the %cmake_qt6 macro.
  QtBuildInternalsExtra.cmake, installed by qt6-base-common-devel
  sets a couple variables and installation directories. We only
  need to define those when building qt6-base. With this change,
  CMake will stop reporting unused variables are defined when
  building 3rd party packages (except QT_DISABLE_RPATH).
- Remove extra escaping in macros.qt6.

- Work around QTBUG-93100 and use GCC 10 for Leap 15.2 and 15.3.

- Remove the module name from the docs build targets.
  The modules now have 'docs' and 'install_docs' build targets.

- Add a %pre scriplet for QCH doc packages.
  Starting with 6.0.1, the qch files are installed directly into %_qt6_docdir
  instead of %_qt6_docdir/<qch doc>.qch/.
  RPM can't upgrade packages if a directory is replaced by something
  else, we need a %pre scriptlet that will remove existing folders.

- Doc update.

- Handle _multibuild for documentation packages.
  It is now possible to replace -docs spec files with a
  _multibuild file and the new macros:
  * %qt6_flavor <flavor> in the spec header
  * '%if %qt6_docs_flavor' and '%if !%qt6_docs_flavor' to
    enable/disable spec file blocks.

- Change the executable symlinks suffix from '-qt6' to '6'
  To allow coinstallation, upstream plans to append '6' to user
  facing programs and move the other ones into %_qt6_libexecdir
  (QTBUG-89170)

- Transfer folders ownership to qt6-base, qt6-declarative
  and -docs subpackages.
- Require cmake

- Rename a __builddir, __sourcedir and __builder to avoid
  conflicts with the other RPM macros.
- Add default linker flags to the %cmake_qt6 macro
- Allow using extra parameters to the CMake and QMake build and
  installation macros.

- Update the translations install location.

- Use Ninja by default.
  Only Ninja will be the supported upstream for Qt 6. Generating
  makefiles is still possible with the %qt6_use_make command.

- Enable QT_DISABLE_RPATH.
  Random build failures were observed when installing some binaries.

- Create a variable for the metatypes folder.

- Make qt6-macros 'own' a couple more directories used in almost
  every module.

- Use dashes instead of underscores for documentation package names.

- Don't use the verbose flag when building docs.

- Don't mention multibuild usage for docs generation. This wasn't such
  a good idea. multibuild is powerful when only minor changes between
  flavors are needed. For Qt packages, that implied commenting out
  large chunks of code in the spec, which makes the maintenance
  harder and affects the spec file clarity.

- Change the %_qt6_docdir path. Installing the developer documentation
  in a folder meant to be used for package documentation doesn't
  make sense.