if [ "$GTKENGINE_CLEARLOOKS" == "n" ]; then OPTS="$OPTS --disable-clearlooks" fi && if [ "$GTKENGINE_CRUX" == "n" ]; then OPTS="$OPTS --disable-crux" fi && if [ "$GTKENGINE_HC" == "n" ]; then OPTS="$OPTS --disable-hc" fi && if [ "$GTKENGINE_INDUSTRIAL" == "n" ]; then OPTS="$OPTS --disable-industrial" fi && if [ "$GTKENGINE_MIST" == "n" ]; then OPTS="$OPTS --disable-mist" fi && if [ "$GTKENGINE_REDMOND" == "n" ]; then OPTS="$OPTS --disable-redmond" fi && if [ "$GTKENGINE_GLIDE" == "n" ]; then OPTS="$OPTS --disable-glide" fi && if [ "$GTKENGINE_THINICE" == "n" ]; then OPTS="$OPTS --disable-thinice" fi && if [ "$GTKENGINE_LUA" == "y" ]; then OPTS="$OPTS --enable-thinice" fi && if [ "$GTKENGINE_ANIMATION" == "y" ]; then OPTS="$OPTS --enable-animation" fi && default_build