I am trying to use this github code in github shell, but the message
./configure is not recognized as the name of a cmdlet
$ git clone git@github.com:jedisct1/libsodium.git
$ ( cd libsodium && \
./configure --prefix="/usr/local" --disable-ssp --disable-pie \
--disable-silent-rules && \
make && make check && sudo make install && make clean )
what to do to solve this problem?