cannot make "'libmill/.libs/libmill.a' failed"

Im using ubuntu 18

git clone https://github.com/cloudflare/mmproxy.git --recursive
cd mmproxy
make

Error:
`make -C libmill distclean

make[1]: Entering directory '/home/mmproxy/libmill'

make[1]: *** No rule to make target 'distclean'. Stop.

make[1]: Leaving directory '/home/mmproxy/libmill'

Makefile:38: recipe for target 'libmill/.libs/libmill.a' failed

make: [libmill/.libs/libmill.a] Error 2 (ignored)

if [ ! -e libmill/configure ]; then (cd libmill && ./autogen.sh); fi
./autogen.sh: 3: ./autogen.sh: autoreconf: not found

Makefile:38: recipe for target 'libmill/.libs/libmill.a' failed

make: *** [libmill/.libs/libmill.a] Error 127
`