Command explanations --libexecdir=$GNOME_PREFIX/sbin: This switch puts libexec files in $GNOME_PREFIX/sbin instead of $GNOME_PREFIX/libexec. --localstatedir=/var/lib: This switch puts ScrollKeeper files in /var/lib/scrollkeeper instead of $GNOME_PREFIX/var/scrollkeeper. --sysconfdir=/etc/gnome: This switch puts configuration files in /etc/gnome instead of $GNOME_PREFIX/etc. --with-pam-prefix=/etc/pam.d: This switch puts PAM files in /etc/pam.d instead of /etc/gnome.