Makefile with auto dependencies, source subdirs, and a build directory

Makefile

# Makefile with auto dependencies, source subdirs, and a build directory

# Binary name
NAME=test

CC=gcc
CFLAGS=-g -Wall -I.
DEPFLAGS=-MMD -MP
LDFLAGS=
LIBFLAGS=
BUILD_DIR=build

SOURCE:=$(shell find * -type f -name '*.c')
OBJECTS:=$(patsubst %,$(BUILD_DIR)/%.o,$(basename $(SOURCE)))
DEPS:=$(OBJECTS:.o=.d)
BUILD_DIRS:=$(sort $(dir $(OBJECTS)))

.PHONY:			all clean

all:			$(NAME)

$(NAME):		$(OBJECTS)
			$(CC) $(LDFLAGS) -o $@ $(OBJECTS) $(LIBFLAGS)

$(BUILD_DIR)/%.o:	%.c | $(BUILD_DIRS)
			$(CC) $(CFLAGS) $(DEPFLAGS) -c $< -o $@

$(BUILD_DIRS):
			mkdir -p $@

include $(wildcard $(DEPS))

clean:
			rm -rf $(NAME) $(BUILD_DIR)