export BUILD_DIR=$(dir $(abspath $(lastword $(MAKEFILE_LIST))))build
export CXX=g++
export CXXFLAGS=
_OBJS-top=ast.o main.o
DEBUG=a

ifdef DEBUG
	CXXFLAGS+=-g
endif

OBJS-top=$(patsubst %,$(BUILD_DIR)/%,$(_OBJS-top))

.PHONY: clean default all

default: docconv $(BUILD_DIR)
all: default

docconv: $(BUILD_DIR)/parsers $(BUILD_DIR)/gens $(OBJS-top)
	$(CXX) $(CXXFLAGS) -o $@ $(BUILD_DIR)/*.o $(BUILD_DIR)/parsers/*.o $(BUILD_DIR)/gens/*.o

$(BUILD_DIR)/%.o: %.cpp
	$(CXX) -c $(CXXFLAGS) -o $@ $<

$(BUILD_DIR)/parsers: $(BUILD_DIR)
	$(MAKE) -C parsers

$(BUILD_DIR)/gens: $(BUILD_DIR)
	$(MAKE) -C gens

$(BUILD_DIR):
	mkdir -p $@

clean:
	rm -rf $(BUILD_DIR)