when i use brew install php72-phalcon:::::::
brew install php72-phalcon
==> Installing php72-phalcon from tigerstrikemedia/phalconphp
==> Downloading https://homebrew.bintray.com/bottles-phalconphp/php72-phalcon-3.4.2.high_sierra.bottle.1.tar.gz
curl: (22) The requested URL returned error: 404 Not Found Error: Failed to download resource "php72-phalcon" Download failed: https://homebrew.bintray.com/bottles-phalconphp/php72-phalcon-3.4.2.high_sierra.bottle.1.tar.gz
Warning: Bottle installation failed: building from source. Error: An exception occurred within a child process: RuntimeError: /usr/local/opt/autoconf not present or broken Please reinstall autoconf. Sorry :(