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MSYS2 moved `libtoolize` to the new `libtool` package and renamed `mingw-w64-x86_64-libtool` to `mingw-w64-x86_64-libltdl` This issue should be fixed with this PR #2566

> In the current version of 1-setup-windows-msys2.sh, there is a call to [build_mlt.sh](https://github.com/synfig/synfig/blob/master/autobuild/msys2/build_mlt.sh), which requires... cmake and ninja Thanks. I didn't notice it because AppVeyor has them already installed. Should...

@mohamedAdhamc Can it be closed or are there any issues left unresolved?

MSYS2 Autotools `Release/production` build should be fixed with https://github.com/synfig/synfig/pull/2818. MSYS2 Autotools `Debug` build still fails due to too many exported symbols.

@morevnaproject What about rendering? Will the background be white or transparent?

> Maybe backport it for better UX @morevnaproject said it needs to check if this affects other tools.

> Is this interesting? It would clean up `ETL/stringf` Hi! Sorry for the late reply. Yes, this is a good idea!

> What about our `synfig::FileSystem::Identifier::filename` be a `Path`? If yes, we have to move up the `Path` declaration in the file. Or create a separate file (e.g. `filesystem_path.h`) and `#include`...

> I'll move Path to its own file then. Yes.

@onlyjob Thank you for reporting. This looks like a floating precision issue. I will try to reproduce this problem locally.