makefile

MY_FLAGS  = -ggdb -I./include -lboost_system -lpthread -llua -ldl -lstdc++fs -std=c++17

TARGET_EXEC ?= main

BUILD_DIR ?= ./build
SRC_DIRS ?= ./src

SRCS := $(shell find $(SRC_DIRS) -name *.cpp -or -name *.c -or -name *.s)
OBJS := $(SRCS:%=$(BUILD_DIR)/%.o)
DEPS := $(OBJS:.o=.d)

INC_DIRS := $(shell find $(SRC_DIRS) -type d)
INC_FLAGS := $(addprefix -I,$(INC_DIRS))

CXX = g++

#CPPFLAGS ?= $(INC_FLAGS) -MMD -MP
CPPFLAGS ?= $(INC_FLAGS)  $(MY_FLAGS)

$(BUILD_DIR)/$(TARGET_EXEC): $(OBJS)
	$(CXX) $(OBJS) -o $@ $(LDFLAGS) $(CPPFLAGS)

# # assembly
# $(BUILD_DIR)/%.s.o: %.s
# 	$(MKDIR_P) $(dir $@)
# 	$(AS) $(ASFLAGS) -c $< -o $@

# # c source
# $(BUILD_DIR)/%.c.o: %.c
# 	$(MKDIR_P) $(dir $@)
# 	$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@

# c++ source
$(BUILD_DIR)/%.cpp.o: %.cpp
	$(MKDIR_P) $(dir $@)
	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@

.PHONY: clean

clean:
	$(RM) -r $(BUILD_DIR)

-include $(DEPS)

MKDIR_P ?= mkdir -p