Programming

#include <stdio.h>
#include "hello.h"

void bye (const char* name)
{
printf ("\n\n%s, I see you soon !\n\n", name);
}

#include <stdio.h>
#include "hello.h"

void hello (const char* name)
{
printf ("\n\nHello, %s !\n\n", name);
}

#include "hello.h"
#include <stdio.h>

int main (void)
{
hello ("José");
printf ("Please to meet you. You will work with us. You start next week. Congratulations !\n");
bye ("José");

return 0;
}

gcc -fPIC -Wall -c hello_fn.c

gcc -fPIC -Wall -c bye_fn.c

gcc -shared -Wall -o libhello.so hello_fn.o bye_fn.o

gcc hello.c libhello.so -o hello

export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:./

./hello

    linux-vdso.so.1 =>  (0x00007ffc1db7c000)
    libhello.so => not found
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007eff63dd2000)
    /lib64/ld-linux-x86-64.so.2 (0x00007eff6419b000)