automake fails

[younicoin]

git clone https://github.com/avgttt/PePe-core.git
cd PePe-core/
chmod +x autogen.sh
./autogen.sh

Makefile.am:5: warning: user variable 'GZIP_ENV' defined here ...
/usr/share/automake-1.16/am/distdir.am: ... overrides Automake variable 'GZIP_ENV' defined here
Makefile.am:58: warning: user target 'distcleancheck' defined here ...
/usr/share/automake-1.16/am/distdir.am: ... overrides Automake target 'distcleancheck' defined here
src/Makefile.am:536: warning: CLEANFILES multiply defined in condition TRUE ...
src/Makefile.am:534: ... 'CLEANFILES' previously defined here
src/Makefile.am: installing 'build-aux/depcomp'
src/Makefile.am:565: warning: user target '.mm.o' defined here ...
/usr/share/automake-1.16/am/depend2.am: ... overrides Automake target '.mm.o' defined here
parallel-tests: installing 'build-aux/test-driver'

automake --version
automake (GNU automake) 1.16.3
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv2+: GNU GPL version 2 or later https://gnu.org/licenses/gpl-2.0.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Tom Tromey [email protected]
and Alexandre Duret-Lutz [email protected]

uname -a
Linux devuan 5.10.0-23-amd64 #1 SMP Debian 5.10.179-1 (2023-05-12) x86_64 GNU/Linux