Linux下，使用C/C++编写"静态链接库"的一个简单例子

/* test_lib.h */
/* 2005/06/28,a.m. wenxy */

#ifndef _TEST_LIB_H
#define _TEST_LIB_H

int test_fun(int nCount);

#endif

/* end file */
// --------------------------------------------------------------------------------------

/* test_lib.c */
/* 2005/06/28,a.m. wenxy */

#include <stdio.h>
#include <unistd.h>

int test_fun(int nCount)
{
 nCount ++;
 printf("Oh, export from the static lib: test_lib.a/n");
 return nCount;
}

/* end file */

// --------------------------------------------------------------------------------------

# makefile
# 产生静态函数库*.a
# ar rcs my_library.a file1.o file2.o

CC = gcc
BIN = test_lib.a
OBJ = test_lib.o

# -----------------------------
# 产生*.a静态库
# .PHONY : static_lib
$(BIN) : $(OBJ)
 ar -r $(BIN) $(OBJ)
# -----------------------------

# 生成目标文件
test_lib.o : test_lib.c test_lib.h
 $(CC) -c test_lib.c

.PHONY : clean
clean :
 -rm $(OBJ) $(BIN)

# end makefile

// -----------------------------------------------------------------------------------------------

/* main.c */
/* 2005/06/28,a.m. wenxy */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>

/* static lib */
#include "test_lib.h"

/* 静态库里的函数 */
/* extern int test_fun(int nCount); */

int main(int argc, char *argv[])
{
 int nTemp = 0;
 nTemp = test_fun(nTemp);
 printf("%d/n", nTemp);
 
 printf("Run ...... [PID = %d]/n", (int) getpid());
 
 
 return 0;
}

/* end file */

// ---------------------------------------------------------------------------------------------

# make file for application
# 2005/06/28,a.m. wenxy

CC = gcc
BIN = main
OBJ = main.o

$(BIN) : $(OBJ)
 $(CC) -o $(BIN) $(OBJ) test_lib.a
 
main.o : main.c test_lib.h
 $(CC) -c main.c test_lib.a

.PHONY : clean
clean :
 -rm $(OBJ) $(BIN)

# end makefile