The ManifestWriter class fails to generate examples-manifest.xml when the output directory doesn't exist, but fails silently without any warning or error message. The file is only generated if another component (such as warning log initialization) has already created the output directory as a side effect.

Steps to reproduce

  1. Create a QDoc project with examples configured:
    - Set examplesinstallpath
    - Set exampledirs
    - Include example projects
  2. Run QDoc without enabling warninglog configuration.
  3. Observe that examples-manifest.xml is NOT generated in the output directory.
  4. Enable warninglog in the configuration.
  5. Run QDoc again.
  6. Observe that examples-manifest.xml IS now generated.