HS_SRCS = $(shell find . -name 'day*.hs')
HS_TARGETS = $(HS_SRCS:.hs=)
HI_TARGETS = $(HS_SRCS:.hs=.hi)
O_TARGETS = $(HS_SRCS:.hs=.o)

all: $(HS_TARGETS)

%: %.hs
	ghc $<

clean:
	rm -rf $(HS_TARGETS) $(HI_TARGETS) $(O_TARGETS)

.PHONY: all clean