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-rw-r--r--src/s/sunos413.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/s/sunos413.h b/src/s/sunos413.h
index f5d1ab11a7f..1ee0969eedf 100644
--- a/src/s/sunos413.h
+++ b/src/s/sunos413.h
@@ -16,3 +16,8 @@
/* 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