-#include "sunos4-1.h"
-
-#if 0 /* jik@gza.com says this didn't work. Too bad.
- Can anyone find out why this loses? */
-/* The bug that corrupts GNU malloc's memory pool is fixed in SunOS 4.1.3. */
-
-#undef SYSTEM_MALLOC
-#endif
-
-#if 0 /* This causes failure in process_send_signal (tcgetattr loses)
- and may also cause hanging at Emacs startup when parent
- is not a job control shell. */
-/* murray@chemical-eng.edinburgh.ac.uk says this works, and avoids
- the problem of spurious ^M in subprocess output. */
-#define HAVE_TERMIOS
-/* This enables some #undefs in systty.h. */
-#define BSD_TERMIOS
-#endif
-
-/* barrie@calvin.demon.co.uk says memmove is missing. */
-#ifndef SYSTEM_MALLOC
-#define MEMMOVE_MISSING
-#endif
+#include "sunos4-1.h"
+
+/* jik@gza.com says this works now. */
+/* The bug that corrupts GNU malloc's memory pool is fixed in SunOS 4.1.3. */
+
+#undef SYSTEM_MALLOC
+
+/* barrie@calvin.demon.co.uk says memmove is missing. */
+#ifndef SYSTEM_MALLOC
+#define MEMMOVE_MISSING
+#endif
+
+#define USE_MMAP_FOR_BUFFERS 1
+
+/* arch-tag: ebd184b0-9084-4306-8e71-c0437330e1e1
+ (do not change this comment) */