Command explanations --libexecdir=`pkg-config --variable=prefix ORBit-2.0`/sbin: This switch puts libexec files in $GNOME_PREFIX/sbin instead of $GNOME_PREFIX/libexec. --sysconfdir=/etc/gnome: This switch puts configuration files in /etc/gnome instead of $GNOME_PREFIX/etc. This installation controls all future installations of schemas, changes in location, including eliminating this command must be consistent. : This switch rebuilds the documentation during the make command.