My First Makefile

By Rayed

February 10, 2013

The following is a sample Makefile for simple project, here I am building a simple “Bloom Filter” library, and “main” program to use it.

The library will have the following files:

hash.h and hash.c
bloom.h and bloom.c

and we should get “libbloom.a” out of it.

The “main” program will use:

main.c
bloom.h
libbloom.a

and we should get “main” executable. So our make file should look like this:

$ cat Makefile
CFLAGS=-Wall -O3
LDFLAGS= -L.
LDLIBS=-lbloom

CFLAGS += `pkg-config --cflags libpcre`
LDFLAGS += `pkg-config --libs libpcre`

OBJS=main.o other.o libbloom.a
BLOOM_OBJS=hash.o bloom.o

all: main libbloom.a

main: $(OBJS)
        $(CC) $(LDFLAGS) -o $@ $^ $(LDLIBS)

libbloom.a: $(BLOOM_OBJS)
        ar rcs $@ $^

.PHONY: clean
clean:
        -rm main libbloom.a *.o

Makefile use TAB not spaces for indentation.

To execute it just type “make” in the same directory where “Makefile” reside.

Macros Explained: http://www.cs.duke.edu/~ola/courses/programming/Makefiles/node7.html