This is makeindex, version 2.13 [07-Mar-1997] (using kpathsea).
Scanning input file sympa.idx....
!! Input index error (file = sympa.idx, line = 232):
   -- Extra `@' at position 40 of first argument.
!! Input index error (file = sympa.idx, line = 233):
   -- Extra `@' at position 44 of first argument.

!! Input index error (file = sympa.idx, line = 672):
   -- Extra `@' at position 137 of first argument.
.done (1221 entries accepted, 3 rejected).
Sorting entries............done (13335 comparisons).
Generating output file sympa.ind....done (926 lines written, 0 warnings).
Output written in sympa.ind.
Transcript written in sympa.ilg.
