Command explanations --sysconfdir=/etc/gnome: This switch puts configuration files in /etc/gnome instead of $GNOME_PREFIX/etc. --libexecdir=`pkg-config --variable=prefix ORBit-2.0`/sbin : This switch puts libexec files in $GNOME_PREFIX/sbin instead of $GNOME_PREFIX/libexec. : This switch will prevent the rebuilding of documentation during the make command.