Lines of Makefile from check-in 0a9369ff13 that are changed by the sequence of edits moving toward check-in e90770a5a7:

                         1: all: example.so
                         2: 
0a9369ff13 2019-05-02    3: example.c: $(shell find example -type f) $(shell find lib -type f) xvfs.c.rvt xvfs-create
                         4: 	./xvfs-create --directory example --name example > example.c.new
                         5: 	mv example.c.new example.c
                         6: 
0a9369ff13 2019-05-02    7: example.o: example.c xvfs-core.h
0a9369ff13 2019-05-02    8: 	cc -I. -o example.o -c example.c
                         9: 
0a9369ff13 2019-05-02   10: example.so: example.o
                        11: 	cc -shared -o example.so example.o
                        12: 
                        13: test:
                        14: 	@echo not implemented
                        15: 
                        16: clean:
                        17: 	rm -f example.so example.o example.c
                        18: 
                        19: distclean: clean
                        20: 
                        21: .PHONY: all clean distclean test