cmake: only use qtbase configuration in qtbase

In a toplevel build, we include qtbase's .cmake.conf twice: Once for
qtbase itself, but already earlier to provide some necessary information
for the toplevel build. We now detect the latter, and skip setting
QT_EXTRA_INTERNAL_TARGET_DEFINES in that case, to ensure that it is only
applied to the qtbase itself

Task-number: QTBUG-101640
Pick-to: 6.2 6.3
Change-Id: I14dbf6110c79331fac38cceb76f669ca329ad33a
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

0 files changed, 0 insertions, 0 deletions