[Building/Packaging] ‘std::optional’ has not been declared - Linux #1092
Description
- With the
devbranch, - The
Snap to gridPR Feat: snap to grid #1013 introducedstd::optionalinUBGraphicsScene.h - But it is not declared
- Have a look below the error message:
src/domain/UBGraphicsScene.h:251:69: error: ‘std::optional’ has not been declared
- On
Ubuntu 22.04(KDE Neon) - With GCC and QT5 version that come from the default settings of the distribution.
-> A solution : if I add #include <optional> at the beginning of UBGraphicsScene.h, the building process finishes as expected.