QDateTime: Don't require c++17
Follow-up to commit c79a6cc1
See also: qt/backports-tracker#1414 (closed)
Signed-off-by: Andreas Sturmlechner asturm@gentoo.org
Follow-up to commit c79a6cc1
See also: qt/backports-tracker#1414 (closed)
Signed-off-by: Andreas Sturmlechner asturm@gentoo.org