This is makeindex, version 2.15 [TeX Live 2015] (kpathsea + Thai support).
Scanning style file ./XAG.mst.........done (9 attributes redefined, 0 ignored).
Scanning input file XAG.idx....done (37 entries accepted, 0 rejected).
Sorting entries....done (213 comparisons).
Generating output file XAG.ind....done (36 lines written, 0 warnings).
Output written in XAG.ind.
Transcript written in XAG.ilg.