atoi vs strtol in rtl.c:read_rtx()

[DJ Delorie]

Is there any reason not to use strtol() here?  Or at least abort if
the clueless developer (me ;) puts hex constants in the md file?

      case 'w':
	read_name (tmp_char, infile);
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
	tmp_wide = atoi (tmp_char);
#else
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
	tmp_wide = atol (tmp_char);
#else
	/* Prefer atoll over atoq, since the former is in the ISO C99 standard.
	   But prefer not to use our hand-rolled function above either.  */
#if defined(HAVE_ATOLL) || !defined(HAVE_ATOQ)
	tmp_wide = atoll (tmp_char);
#else
	tmp_wide = atoq (tmp_char);
#endif
#endif
#endif
	XWINT (return_rtx, i) = tmp_wide;
	break;

      case 'i':
      case 'n':
	read_name (tmp_char, infile);
	tmp_int = atoi (tmp_char);
	XINT (return_rtx, i) = tmp_int;
	break;