Previously if zstd was not found, one would see such a warning message
Could NOT find WrapZSTD: Found unsuitable version "", but required is
at least "1.3" (found ZSTD_LIBRARY-NOTFOUND)
This is because PC_ZSTD_VERSION was a defined variable with an empty
value, which makes FPHSA believe that a version was extracted from
somewhere.
Avoid passing that value directly.
Now the warning message is
Could NOT find WrapZSTD (missing: ZSTD_LIBRARIES ZSTD_INCLUDE_DIRS)
(Required is at least version "1.3")
Pick-to: 6.2 6.3 6.4
Change-Id: I88760d94db0d869d328085996298f4aaa88bc6c2
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
d59628881e