CGLAGS= -std=c++17 -I. -I$(VULKAN_SDK_PATH)/include
LDFLAGS = -L$(VULKAN_SDK_PATH)/lib `pkg-config --static --libs glfw3` -lvulkan
OUTPUT_DIR = ./bin

a.out: *.cpp *.hpp
    g++ $(CFLAGS) -o $(OUTPUT_DIR)/a.out *.cpp $(LDFLAGS)

.PHONY: test clean

test: a.out
    ./a.out
clean:
    rm -f $(OUTPUT_DIR)/a.out

This is the error I’m getting

make: *** No rule to make target `*.hpp', needed by `a.out'.  Stop.

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