mac creat lib

The source code

helloworld.c

1 #include <stdio.h>

2 void printHelloWorld(void)

3 {

4 printf("Hello World!\n");

5 }

6

helloworld.h

1 void printHelloWorld(void);

main.c

1 #include "helloworld.h"

2 int main(int argc, char **argv)

3 {

4 printHelloWorld();

5 }

6

Compiling the library

$ gcc -dynamiclib -o libhello.dylib -dy helloworld.c

$ ls -al