/* Build up argv vector. Just in case the string is stored away, use garbage
collected strings. */
VEC_truncate (const_char_p, optimize_args, 0);
- VEC_safe_push (const_char_p, gc, optimize_args, (const_char_p)NULL);
+ VEC_safe_push (const_char_p, gc, optimize_args, NULL);
for (ap = args; ap != NULL_TREE; ap = TREE_CHAIN (ap))
{