nvda

8581f564 - Scons: revert providing the number of logical processors as the number of maximum concurrent jobs to speed up builds by default (#13371)

Scons: revert providing the number of logical processors as the number of maximum concurrent jobs to speed up builds by default (#13371) Reverts #13226 Summary of the issue: While building NVDA with multiple jobs leads to faster build times, it also leads to scrambled output which can be quite annoying when debugging. Description of how this pull request fixes the issue: Disable multiple jobs by default but warn users to run with -jX to get a faster build if applicable.