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-rw-r--r--bsd-user/syscall_defs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/bsd-user/syscall_defs.h b/bsd-user/syscall_defs.h
index ff69281433..52f84d5dd1 100644
--- a/bsd-user/syscall_defs.h
+++ b/bsd-user/syscall_defs.h
@@ -95,6 +95,8 @@ struct bsd_shm_regions {
 /*
  *  sys/mman.h
  */
+#define TARGET_MADV_DONTNEED            4       /* dont need these pages */
+
 #define TARGET_FREEBSD_MAP_RESERVED0080 0x0080  /* previously misimplemented */
                                                 /* MAP_INHERIT */
 #define TARGET_FREEBSD_MAP_RESERVED0100 0x0100  /* previously unimplemented */