Use a helper to detect a path slash on Windows
Use a helper to detect a path slash on Windows

BeamNG/openal-soft,irungentoo/openal-soft-tox,Wemersive/openal-soft,aaronmjacobs/openal-soft,BeamNG/openal-soft,aaronmjacobs/openal-soft,alexxvk/openal-soft,irungentoo/openal-soft-tox,Wemersive/openal-soft,arkana-fts/openal-soft,alexxvk/openal-soft,arkana-fts/openal-soft