This installs needed KDE-related environment settings without going so
far as to install .xsession support. For that, see
install-session-driver, whose documentation has been fixed to make clear
it's not a default.
<entry><para>By default, &kdesrc-build; will install a shell script that can be
sourced in a user's profile setup scripts to easily establish needed environment
variables to run the Plasma desktop built by &kdesrc-build;.</para>
<para>This driver will alter the following files:</para>
<itemizedlist>
<listitem><para><filename>$XDG_CONFIG_HOME/kde-env-master.sh</filename> (normally found at <filename>~/.config/kde-env-master.sh</filename>).</para></listitem>
<listitem><para><filename>$XDG_CONFIG_HOME/kde-env-user.sh</filename> (normally found at <filename>~/.config/kde-env-user.sh</filename>).</para></listitem>
</itemizedlist>
<para>The <filename>kde-env-user.sh</filename> is optional. It is
intended for user customizations (see the <ulink url="https://userbase.kde.org/KDE_System_Administration/Environment_Variables#Troubleshooting_and_Debugging">Troubleshooting and Debugging</ulink>
section of the &kde; UserBase for examples of customizable settings), but these settings
can be set elsewhere by the user in their existing profile setup scripts.</para>
<para>You can disable this feature by setting this option to
<replaceable>false</replaceable>, and ensuring that the <link
linkend="conf-install-session-driver">install-session-driver</link> option is
also disabled.</para>
<para>This option was introduced with &kdesrc-build; 17.08.</para>
<tip><para>&kdesrc-build; will not overwrite your existing files (if present)