Creating a dylib file in XCode

!--main.c file

#define EXPORT __attribute__((visibility("default")))

__attribute__((constructor))

static void initializer(void)

{

printf("%s",__FILE__);

}

__attribute__((destructor))

static void finalizer(void)

{

printf("%s",__FILE__);

}

EXPORT

void shownow (void) {

// insert code here...

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

}

Use EXPORT before any funtion that you would like to export in dylib file. After you have written the file. You can create a dylib in terminal by typing the command below.

Locate the main.c file and type

gcc -dynamiclib -std=gnu99 "FileName" -current_version 1.0 -compatibility_version 1.0 -fvisibility=hidden -o "LibFileName"

Example:

"FileName" - main.c

"LibFileName"- main.dylib