configure Emacs with. On Debian-based systems, you can install all the
packages needed to build the installed version of Emacs with a command
like 'apt-get build-dep emacs' (on older systems, replace 'emacs' with
-eg 'emacs25'). On Red Hat-based systems, the corresponding command is
+e.g. 'emacs25'). On Red Hat-based systems, the corresponding command is
'dnf builddep emacs' (on older systems, use 'yum-builddep' instead).
On FreeBSD, the command is 'pkg install -y `pkg rquery %dn emacs-devel`'.