The code I introduced in 4ee7425794 only
dealt with systems that reasonably used a 64-bit off_t parameter. Turns
out that we don't turn on largefile support on 32-bit Android, which
meant that the fix caused a regression.
[ChangeLog][QtCore][QFile] Fixed a regression that caused QFile::map()
to succeed or produce incorrect results when trying to map a file at an
offset beyond 4 GB on 32-bit Android systems and on some special Linux
configurations.
Task-number: QTBUG-69148
Change-Id: I2c133120577fa12a32d444488bac3e341966f8d7
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
9a04453b50