makefile

CC := g++
CFLAGS := -std=c++17 -Wall -g 
INCLUDE := -I. -I./third_party
LINK := -L./third_party/GLFW/lib -lglfw3 -lopengl32 -lgdi32
TARGET := build/bin/output.exe

# $(wildcard *.cpp /xxx/xxx/*.cpp): get all .cpp files from the current directory and dir "/xxx/xxx/"
SRCS := $(wildcard quickstart/*.cpp core/systems/*.cpp core/components/*.cpp core/*.cpp third_party/mikktspace/*.cpp third_party/glad/*.cpp)\
# location of intermediate build files
OBJDIR := build/intermediate/obj
# $(patsubst %.cpp,%.o,$(SRCS)): substitute all ".cpp" file name strings to ".o" file name strings
OBJS := $(patsubst %.cpp, $(OBJDIR)/%.o, $(SRCS))
DEPS := $(patsubst %.cpp, $(OBJDIR)/%.d, $(SRCS))

l3: $(TARGET)

$(TARGET): $(OBJS)
	@mkdir -p $(@D)
	$(CC) $^ -o $@ $(LINK)

$(OBJDIR)/%.o: %.cpp $(HEADERS)
	@mkdir -p $(@D)
	$(CC) $(CFLAGS) $(INCLUDE) -MMD -MP -c $< -o $@
-include $(DEPS)

clean:
	rm -rf build/
	
.PHONY: l3 clean