# 'all' is called by default when the user invokes the 'make' command without any arguements
# It does not actually represent a file so its called a 'phony' target
all: main.exe

# Variable name. Value can be accessed using $(EXEC_NAME)
EXEC_NAME = main.exe

# Link everything together
# '$^' represents the default variable '^' which contains all dependencies seperated by spaces
main.exe: main.o func.o
    gcc -o $(EXEC_NAME) $^
    make clean

# Compile func.c into an object file
func.o: func.c
    gcc -c $< -o $@

# Compile main.c into an object file
main.o: main.c
    gcc -c $< -o $@

# Delete all object files
clean:
    rm func.o main.o