Makefile hierarchy: CFLAGS override-ability actually works now The original version was broken in that CFLAGS=${CFLAGS} passing was done without quotes, which breaks as soon as there is a space in the user-set CFLAGS. Changing it to CFLAGS="${CFLAGS}" makes it work as originally intended.

#include <sys/types.h>

u_char *
memset(buf, c, n)
	u_char *buf;
	int c;
	unsigned n;
{
	u_char *p = buf;

	for (; n; n--)
		*p++ = c;
	return buf;
}