MSYS2 MINGW64 not building using Ninja

[florianober]

Describe the bug

When using MSYS2 and building the project using the cmake standard Ninja (for MSYS2) generator, it crashes because of nonexisting directories (like src/modules).

Expected behavior
no crash when building ;)

To Reproduce
Steps to reproduce the behavior:

git clone https://github.com/vmagin/gtk-fortran 
cd gtk-fortran 
cmake -B build
cmake --build build

...
if using the UCRT64 environment, it's working, as well when using "MinGW Makefiles" as generator like:

cmake -B build -G "MinGW Makefiles"

Your system:

• OS version: [MSYS2 MinGW64 ]
• Compiler version: [gfortran 14.2.0]
• GTK branch: [gtk4 and gtk3]

Actually, I don't know if this might be an upstream bug.

[florianober]

any insights on this issue?

[vmagnin]

any insights on this issue?

I am using UCRT64/Win10 (which should be preferred over MINGW64, as being a more modern environment) and it works.

I guess it is probably a MINGW64 bug/problem in the CMake/Ninja packages...

[florianober]

ja this is right. Nonetheless, many are still using MinGW64 (mainly because of historical reasons)