sanity check output is not available in log

[kasper93]

Describe the bug
When sanity check fails, there is only log

meson.build:1:0: ERROR: Executables created by c compiler x86_64-w64-mingw32-gcc  are not runnable.

without any more information in log or anywhere.

To Reproduce
Try to build something and see the output of sanity check.

Expected behavior
Sanity check log is visible. Especially when running through exe_wrapper like wine, it's important to see why it actually fails.

[bonzini]

Can you provide some kind of reproduction instructions?

[kasper93]

https://github.com/kasper93/meson-rust for example https://github.com/kasper93/meson-rust/actions/runs/13888788100/job/38857189704 shows only

meson.build:1:0: ERROR: Executables created by Rust compiler rustc --target x86_64-pc-windows-gnu -C linker=x86_64-w64-mingw32-gcc-posix are not runnable.

without additional info. The real reason for this failure is that wine cannot find rust binary, because of missing .exe extension. But wine output is not available to know that.

It's not limited to rust, c sanity check also doesn't log output. This can be easily reproducible by setting WINEARCH=win32 on x64_64 build for example.

[bonzini]

It's not limited to rust, c sanity check also doesn't log output. This can be easily reproducible by setting WINEARCH=win32 on x64_64 build for example.

Yep, I noticed that while looking at a fix. #14379 will be the PR for this once it's tested.