fix autoconf error : possibly undefined macro: AC_SEARCH_LIBS

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

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