polkit: Update /etc/pam.d/polkit-1 for Linux PAM support

[1]: http://www.linuxfromscratch.org/blfs/view/systemd/postlfs/polkit.html

polkit.be0

@@ -70,6 +70,22 @@ mee_configure() {
 
 mee_install_post() {
     rm -v ${D}/etc/polkit-1/rules.d/50-default.rules
+
+    # If you have built Polkit with Linux PAM support, you need to modify the
+    # default PAM configuration file which was installed by default to get
+    # Polkit to work correctly with BLFS. Issue the following commands as the
+    # root user to create the configuration file for Linux PAM:
+
+    start_cmd cat > /etc/pam.d/polkit-1 << "EOF"
+	# Begin /etc/pam.d/polkit-1
+
+	auth     include        system-auth
+	account  include        system-account
+	password include        system-password
+	session  include        system-session
+
+	# End /etc/pam.d/polkit-1
+	EOF
 }
 
 ###############################################################################