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(cherry picked from commit 000a5540)

against c++17 (make sure that it compiles by default with c++17)

This makes it easier to build against both Qt5 and Qt6

(cherry picked from commit 6c8070cb)

(cherry picked from commit ae3a601b)

If you want git blame to ignore formatting revisions run: git config blame.ignoreRevsFile .git-blame-ignore-revs

(cherry picked from commit 55b4ef16)