CMake: Don't cache QT_SYNCQT across builds

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There is no need for this variable to be stored in CMake's cache.  We
don't perform expensive operations to set up QT_SYNCQT, and we even
unset the cache variable to ensure it gets recomputed on
reconfiguration.

We still store QT_SYNCQT in a global property, because the function
qt_ensure_sync_qt is called in different directory scopes, and we want
to avoid re-calculations for every subdir.

It's now possible for the user to set QT_SYNCQT (see QTBUG-88088 for
motivation).  Also, in a non-prefix build, changes to syncqt.pl in the
source dir are reflected upon re-configuration in the build
tree (because qt_copy_or_install is called on every configure).

Pick-to: 6.2
Fixes: QTBUG-88088
Task-number: QTBUG-75290
Change-Id: I6137b060d200d3dafd4a64d5a6c1bd2549723d78
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

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This commit is contained in:

Joerg Bornemann 2021-08-27 14:47:45 +02:00

parent 2c6de9c099

commit 823c4951b2

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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