GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
This is makeindex, version 2.15 [TeX Live 2009] (kpathsea + Thai support). Scanning input file AutMan.idx....done (99 entries accepted, 0 rejected). Sorting entries....done (690 comparisons). Generating output file AutMan.ind....done (151 lines written, 0 warnings). Output written in AutMan.ind. Transcript written in AutMan.ilg.