hs=$(wildcard *.hs)

all: $(hs:.hs=)

c clean: \
 $(hs:.hs=.o/clean) \
 $(hs:.hs=.hi/clean) \
 $(hs:.hs=/clean)
%/clean:
	$(if $(wildcard $*),rm -f "$*")

%: %.hs
	ghc $<