CXX ?= g++
OPTFLAGS ?= -O3 -march=native
VECTOR_SIZE ?= 268435456
ENABLE_EVENTIFY ?= YES 

CPPFLAGS = -DVECTOR_SIZE=$(VECTOR_SIZE)
INCLUDES = -I./include
CXXFLAGS = $(CPPFLAGS) -std=c++20 -fopenmp $(INCLUDES) $(OPTFLAGS)
LDFLAGS = -fopenmp

ifeq ($(ENABLE_EVENTIFY), "YES")
	CPPFLAGS += -DENABLE_EVENTIFY
	INCLUDES += -I$(EVENTIFY_ROOT)/include
	LDFLAGS += -L$(EVENTIFY_ROOT)/lib -leventify
endif

SRC_DIR = src
INCLUDE_DIR = include
OBJ_DIR = obj
BIN_DIR = bin

SRCS = $(wildcard $(SRC_DIR)/*.cpp)

OBJS = $(SRCS:$(SRC_DIR)/%.cpp=$(OBJ_DIR)/%.o)

TARGET = $(BIN_DIR)/benchmark

# Default rule to build the program
all: $(TARGET)

$(TARGET): $(OBJS)
	@mkdir -p $(BIN_DIR)
	$(CXX) $(LDFLAGS) $(OBJS) -o $@

$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cpp
	@mkdir -p $(OBJ_DIR)
	$(CXX) $(CXXFLAGS) -c $< -o $@

clean:
	rm -rf $(BIN_DIR) $(OBJ_DIR)

.PHONY: all clean