🚀 go-pugleaf

I'm trying to pass a union to a function as argument and seem to be
getting vague results. . Can you please help me out.. Thanks
surendar

============================SOURCE===========================
#include <stdio.h>

union semun {
	int val;
	char *ptr;
};

main()
{
	union semun new;

	new.val = 1;
	callf(new);
	callp(&new);
	callf(&new);
	callp(new);
}

callf(a)
union semun a;
{
	printf("%x %d %d\n",a,a.val,a.ptr);
}

callp(a)
union semun *a;
{
	printf("%x %d %d\n",a,a->val,a->ptr);
}
========================================================
If I run this in gcc 1.39 on a Multimax I get
1 1 1
ffffe908 1 1
ffffe908 -5880 -5880
1 3074560 3074560
If I run this in gcc 1.39 in a Sun SPARC station I get
Bus error
but when I run it with gcc 2.0 or with SUN OS C compiler I get
gcc 2.0:
f7fff7cc 1 1
f7fff85c 1 1
f7fff7cc 1 1
f7fff858 1 1
Sun CC:
f7fff7f8 1 1
f7fff86c 1 1
f7fff7f8 1 1
f7fff860 1 1
============================================================
To me the old gcc (1.39) seems to be working according to my
expectation and CC in Sun seems to do wrong. Please help

surendar
PS: I Need this to access GCC 1.39 and SUN OS libraries for 
semctl() function which passes a similiar union as a parameter..