[3dprinter-general] Bug#1037614: cura-engine: ftbfs with GCC-13

[Gregor Riepl]

I
* created a bug report for the rounding issues (for future reference)[1]
* finished the patch and pushed it to Salsa
* removed the old patch
* opened an upstream PR, in case they are also interested [2]

The Salsa tests are no longer failing, and I think you can push 
CuraEngine 5.0.0-4 now.

Thanks!

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1041808
[2] https://github.com/Ultimaker/CuraEngine/pull/1914