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GHC = ghc
GHCBASEFLAGS = -package parsec -package array -package vector
GHCFLAGS = $(GHCBASEFLAGS) -Wall -O2 -threaded -fdefer-typed-holes
CXX = g++
CXXFLAGS = -Wall -Wextra -std=c++17 -O2

OBJDIR = obj

HASKELL_AUX := Input.hs Asm.hs
CPP_AUX     :=
HASKELL_SRC := $(filter-out $(HASKELL_AUX),$(wildcard *.hs))
CPP_SRC     := $(filter-out $(CPP_AUX),$(wildcard *.cpp))
HASKELL_BIN := $(HASKELL_SRC:.hs=)
CPP_BIN     := $(CPP_SRC:.cpp=)

BINARIES := $(HASKELL_BIN) $(CPP_BIN)

.PHONY: all clean depend


all: $(BINARIES)

clean:
	rm -f $(BINARIES) .depend_hs
	rm -rf $(OBJDIR)

# Generate the .depend_hs file for correct Haskell dependency tracking
depend:
	ghc -dep-suffix '' -dep-makefile .depend_hs -M $(GHCBASEFLAGS) $(HASKELL_SRC)
	sed -i 's/\.o *:/:/; s/\.hi$$/.hs/g; s/\.hi[ \t]/.hs/g' .depend_hs
	rm -f .depend_hs.bak

$(HASKELL_BIN): %: %.hs | $(OBJDIR)/%
	$(GHC) $(GHCFLAGS) -odir $(OBJDIR)/$* -hidir $(OBJDIR)/$* -o $@ $<

$(CPP_BIN): %: %.cpp $(CPP_AUX) | $(OBJDIR)
	$(CXX) $(CXXFLAGS) -o $@ $<

$(OBJDIR)/%:
	mkdir -p $@


# By default, if it's needed, just create an empty file (but don't truncate if it exists)
.depend_hs:
	touch $@

-include .depend_hs