Makefile for small C projects

Makefile

# Add name of the program as target
TARGET = out
CC = cc
# Add libs
LIBS = -lm
CFLAGS = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os
OBJS = $(patsubst %.c, %.o, $(wildcard *.c))
INCS = $(wildcard *.h)

all : options ${TARGET}

debug: CFLAGS += -g -DDEBUG
debug: options ${TARGET}

%.o: %.c $(INCS)
        $(CC) $(CFLAGS) -c $< -o $@

.PRECIOUS: $(TARGET) $(OBJS)

$(TARGET) : $(OBJS)
        $(CC) $(OBJS) -Wall $(LIBS) -o $@

options:
        @echo Build options
        @echo "CFLAGS   = ${CFLAGS}"
        @echo "CC       = ${CC}"
        @echo "INCS     = ${INCS}"
        @echo "LIBS     = ${LIBS}"
        @echo "OBJS     = ${OBJS}"

clean:
        -rm -f *.o
        -rm -f $(TARGET)

.PHONY: all clean%