82をそのまま実行したら、
autoreconf -iでエラーが出たのだが、なにが悪いのか?

autoreconf -i
configure.ac:15: error: possibly undefined macro: AC_PROG_LIBTOOL
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
autoreconf: /usr/bin/autoconf failed with exit status: 1