+autoincs: $(AUTO_INCS)
+scads: $(addsuffix .auto.scad, $(AUTO_TOPLEVELS))
+stls: $(addsuffix .auto.stl, $(AUTO_TOPLEVELS))
+
+%.auto.scads:
+ $(MAKE) $(addsuffix .auto.scad, $(shell $(PLAY)/toplevel-find $*))
+%.auto.stls:
+ $(MAKE) $(addsuffix .auto.stl, $(shell $(PLAY)/toplevel-find $*))
+
+-include .*.d
+
+%.stl: %.scad $(AUTO_INCS)
+ openscad -d .$@.d.tmp -o $*.tmp.stl $<
+ @rm -f $@
+ @sed -e 's/\.tmp\.stl:/.stl:/' <.$@.d.tmp >.$@.d
+ @rm .$@.d.tmp
+ mv -f $*.tmp.stl $@
+
+%.gcode: %.stl $(CONFIG)
+ $(SLIC3R) --load $(CONFIG) \
+ --ignore-nonexistent-config --load $*.slic3r \
+ --output $@.tmp $<
+ @mv -f $@.tmp $@
+
+%: %.cpp
+ cpp -nostdinc -P <$< >$@.tmp && mv -f $@.tmp $@