Try this:
struct snejs
{
char bokstav1 __attribute__ ((aligned(2));
char bokstav2 __attribute__ ((aligned(2));
char bokstav3 __attribute__ ((aligned(2));
char bokstav4 __attribute__ ((aligned(2));
short siffra1 __attribute__ ((aligned(2));
long siffra2;
} mojs __attribute__ ((packed);
Jesper