configure.ac:109: error: possibly undefined macro: AC_SEARCH_LIBS
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
autoreconf: /usr/local/bin/autoconf failed with exit status: 1
autoreconf failed

solution

sudo apt install libtool

notes, all below should be installed

autoconf
automake
m4
libtool
libevent
perl
pkg-config