3 cases are possible:
- in native build, the test must succeed and is a fatale error.
- in cross-compilation, if no `exe_wrapper` binaries were set in the
  toolchain file, we just bypass the check, yet still output a warning
  so that packagers won't forget to add the dependency.
- in cross-compilation with an `exe_wrapper` (for instance `wine` for a
  win32 target), we run the check. Even if it fails, we don't make it a
  fatale error then simply output a warning as cross-platform execution
  are not always reliable anyway.