all: hello report.pdf

clean:
	rm -f hello report.pdf report.dvi hello.out \
	report.aux report.log

hello: hello.c
	gcc -o hello hello.c

report.pdf: report.dvi
	dvipdf report.dvi
	
report.dvi: report.tex hello.c hello.out
	latex report

hello.out: hello
	./hello >hello.out