bug21.c

gcc-you can use this code to learn something about gcc, and inquire further into linux,

typedef struct {
	int knock_on_wood;		/* leave it out and it works. */
	int f1;
} FOO;

typedef struct {
	FOO *b1;
} BAR;

Nase ()
{
	int i, j;
	FOO *foop;
	BAR *barp;

	for (i = 0; i < 2; i++) {
		foop = &barp->b1[i];
		for (j = 0; j < foop->f1; j++) {
			/* dummy() */;		/* put it in and it works. */
		}
	}
}