DIRS=\
BitButton \
Checkbox \
HotSpot \
ObjectList \
PaintBox \
Slider \
TextPushButton \
Timer \


all::
	@for i in ${DIRS};                  \
	 do                                 \
	     if [ -f $${i}/Makefile ];      \
	     then                           \
	         make -C $${i} || exit $$?; \
	     fi;                            \
	 done
