It has appeared in SourceForge discussions regarding software installations (e.g., orbkit) where users describe following instructions "altgought" encountering errors.

Break it into three parts: + though + (no extra ‘t’ at the end). Think: All though → but drop one ‘l’ → Al + though . And remember: the gh is silent — it’s not “altgought” (no ‘t’ before ‘g’, no extra ‘t’ at the end).