Should use our %autogen macro.

Here is the result of using the %autogen macro:

+ ./autogen.sh --prefix=/usr --build=x86_64-solus-linux --libdir=/usr/lib64 --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var --libexecdir=/usr/lib64/par2cmdline
/tmp/ypkg-setupqdh1UD: line 25: ./autogen.sh: No such file or directory

From the README in the tarball:

To compile on Linux and other Unix variants use the following commands:

aclocal
automake --add-missing
autoconf
./configure
make
make check
make install

What about %reconfigure ?

That works