acr software package provides autoconf like tool, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install acr
acr is installed in your system.
Make ensure the acr package were installed using the commands given below,
$ sudo dpkg-query -l | grep acr *
You will get with acr package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Development |
| Package | acr |
| Version | 0.9.6-1 |
| Description | autoconf like tool |
| Sub Section | devel |