printf and wprintf in single C code

I have a problem when using printf and wprintf functions together in code. If the regular string is printed first, then wprintf doesn't work. If I use wprintf first then printf doesn't work.

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

int main() 
{
    setlocale(LC_ALL,"");

    printf("No printing!\n");
    wprintf(L"Printing!\n");
    wprintf(L"Wide char\n");
    printf("ASCII\n");
    return 0;
}

Outputs:

No printing!
ASCII

While

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

int main() 
{
    setlocale(LC_ALL,"");

    wprintf(L"Printing!\n");
    printf("No printing!\n");
    wprintf(L"Wide char\n");
    printf("ASCII\n");
    return 0;
}

outputs:

Printing!
Wide char

I'm using gcc (GCC) 4.6.1 20110819 together with glibc 2.14 on 64bit Linux 3.0.