quentin@chrystal ~/tmp $ cat align.c                                                          0
#include <stdio.h>

struct foo {
	int teton;
	char bar;
	unsigned long foo;
	char foobar;
} __attribute__((align(32)));

struct foo my_array[42];
struct foo my_array[42] __attribute__((align(32)));

int main(void)
{
	printf("sizeof==%lu, %p %p\n", sizeof(struct foo), my_array, my_array + 1);
	return 0;
}
quentin@chrystal ~/tmp $ make align                                                           0
cc     align.c   -o align
align.c:8:1: warning: ‘align’ attribute directive ignored [-Wattributes]
 } __attribute__((align(32)));
 ^
align.c:11:8: warning: ‘align’ attribute directive ignored [-Wattributes]
 struct foo my_array[42] __attribute__((align(32)));
        ^
quentin@chrystal ~/tmp $ ./align                                                              0
sizeof==24, 0x601060 0x601078