The texinfo.tex shipped by automake has been updated (#1119031), but unfortunately this did not fix this FTBFS.
However the error now happens at a different place:
(Graphics Properties Index) [1210] (./octave.prs
./octave.prs:1: Argument of @asis has an extra }.
<inserted text>
@par
<to be read again>
}
@writetocentry ...p {@write @tocfile {@#1entry{#2}
{#3}{@lastnode }{@noexpand...
@doindexinitialentry ...1}{IDX@the @idxinitialno }
@pdfmkdest {idx.@asis #1.I...
@initialx ...aselineskip @doindexinitialentry {#1}
@initialglyphs @leftline {...
l.1 @initial { }
?
./octave.prs:1: Emergency stop.
<inserted text>
@par
<to be read again>
}
@writetocentry ...p {@write @tocfile {@#1entry{#2}
{#3}{@lastnode }{@noexpand...
@doindexinitialentry ...1}{IDX@the @idxinitialno }
@pdfmkdest {idx.@asis #1.I...
@initialx ...aselineskip @doindexinitialentry {#1}
@initialglyphs @leftline {...
l.1 @initial { }
./octave.prs:1: ==> Fatal error occurred, no output PDF file produced!
Transcript written on octave.log.
/usr/bin/texi2dvi: pdfetex exited with bad status, quitting.
make[3]: *** [Makefile:32574: doc/interpreter/octave.pdf] Error 1
--
⢀⣴⠾⠻⢶⣦⠀ Sébastien Villemot
⣾⠁⢠⠒⠀⣿⡁ Debian Developer
⢿⡄⠘⠷⠚⠋⠀ https://sebastien.villemot.name
⠈⠳⣄⠀⠀⠀⠀ https://www.debian.org
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