graphics/qgis: Update to 4.2.1
Major release update from QGIS 3.x to 4.x, which brings many changes
and new features.
Users who previously used 3.x can transfer their configuration to
separate configuration directories in 4.x. This happens automatically
upon the first launch, unless the user declines it. The configuration
for 3.x versions is therefore preserved.
Since many, but not yet all, of the plugins familiar from 3.x work in
the 4.x versions, you can continue working with QGIS 3.x for now. To do
so, replace the existing installation from graphics/qgis with the one
from graphics/qgis-ltr, where 3.x versions will continue to be
maintained until further notice.
- 4.x versions are real Qt6 ones
- Use PDF4QT for better rendering in PDF
When building in an unclean environment, the port should now be
unaffected by whether the ports archivers/lazperf and/or
devel/spatialindex are installed system-wide. The internal versions
will be used in any case.
Changelog: https://qgis.org/project/visual-changelogs/visualchangelog42/