[buildsys] macOS Big Sur 11.1 doesn't have sys/ioctl.h

Author:  Alexei Colin 
Bug: https://bugs.gentoo.org/761322
Bug: https://savannah.gnu.org/bugs/index.php?59755

--- a/configure	2020-12-23 00:49:19.000000000 -0500
+++ b/configure	2020-12-23 00:49:52.000000000 -0500
@@ -3422,6 +3422,7 @@
 as_fn_append ac_header_list " sys/device.h"
 as_fn_append ac_header_list " sys/gentape.h"
 as_fn_append ac_header_list " sys/inet.h"
+as_fn_append ac_header_list " sys/ioctl.h"
 as_fn_append ac_header_list " sys/io/trioctl.h"
 as_fn_append ac_header_list " sys/mtio.h"
 as_fn_append ac_header_list " sys/time.h"
--- a/config.h.in	2019-02-23 07:56:20.000000000 -0500
+++ b/config.h.in	2020-12-23 01:04:49.000000000 -0500
@@ -1480,6 +1480,9 @@
 /* Define to 1 if you have the <sys/inttypes.h> header file. */
 #undef HAVE_SYS_INTTYPES_H
 
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#undef HAVE_SYS_IOCTL_H
+
 /* Define to 1 if you have the <sys/io/trioctl.h> header file. */
 #undef HAVE_SYS_IO_TRIOCTL_H
 
--- a/lib/system-ioctl.h	2020-12-22 20:57:00.000000000 -0500
+++ b/lib/system-ioctl.h	2020-12-22 20:57:35.000000000 -0500
@@ -41,8 +41,10 @@
 #  endif
 #  include <sys/tape.h>
 # else
-#  if HAVE_SYS_MTIO_H
+#  if HAVE_SYS_IOCTL_H
 #   include <sys/ioctl.h>
+#  endif
+#  if HAVE_SYS_MTIO_H
 #   if HAVE_SGTTY_H
 #    include <sgtty.h>
 #   endif
--- a/src/checkpoint.c	2020-12-22 20:56:48.000000000 -0500
+++ b/src/checkpoint.c	2020-12-22 20:58:29.000000000 -0500
@@ -20,7 +20,7 @@
 #include <system.h>
 #include "common.h"
 #include "wordsplit.h"
-#include <sys/ioctl.h>
+#include <system-ioctl.h>
 #include <termios.h>
 #include "fprintftime.h"
 #include <signal.h>