BLOSSOM_DIR := blossom5-v2.05.src
BLOSSOM_DIRS := $(BLOSSOM_DIR) $(BLOSSOM_DIR)/MinCost $(BLOSSOM_DIR)/GEOM

BLOSSOM_SOURCES := $(filter-out $(BLOSSOM_DIR)/example.cpp, $(foreach dir, $(BLOSSOM_DIRS), $(wildcard $(dir)/*.cpp)))
BLOSSOM_OBJS := $(patsubst %.cpp, %.o, $(BLOSSOM_SOURCES))

CFLAGS := -flto -O3 -D_NDEBUG -DPERFECT_MATCHING_DOUBLE
CXX = clang++
LD = ld.lld
LIBS := -lrt

all: rbmp

rbmp: rbmp.cpp $(BLOSSOM_DIR)/blossom5.o
	$(CXX) $(CFLAGS) $(BLOSSOM_DIR)/blossom5.o rbmp.cpp -o $@

$(BLOSSOM_DIR)/blossom5.o: ${BLOSSOM_OBJS}
	$(LD) -r -o $@ ${BLOSSOM_OBJS}

.cpp.o:
	$(CXX) $(CFLAGS) $< -c -o $@

clean:
	rm -f ${BLOSSOM_OBJS} $(BLOSSOM_DIR)/blossom5.o rbmp