#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>

int
main(int argc, char *argv[])
{
        char outstr[200];
        time_t t;
        struct tm *tmp;
        
        setlocale(LC_TIME, "fr_FR.utf8");

        t = time(NULL);
        tmp = localtime(&t);
        if (tmp == NULL) {
                perror("localtime");
                exit(EXIT_FAILURE);
        }

        if (strftime(outstr, sizeof(outstr), argv[1], tmp) == 0) {
                fprintf(stderr, "strftime returned 0");
                exit(EXIT_FAILURE);
        }

        printf("Result string is \"%s\"\n", outstr);
        exit(EXIT_SUCCESS);
}