--- include/qemu/madvise.h.orig	2022-04-21 16:24:08.000000000 -0700
+++ include/qemu/madvise.h	2022-04-21 16:24:57.000000000 -0700
@@ -13,7 +13,11 @@
 #if defined(CONFIG_MADVISE)
 
 #define QEMU_MADV_WILLNEED  MADV_WILLNEED
+#ifdef MADV_DONTNEED
 #define QEMU_MADV_DONTNEED  MADV_DONTNEED
+#else
+#define QEMU_MADV_DONTNEED  QEMU_MADV_INVALID
+#endif
 #ifdef MADV_DONTFORK
 #define QEMU_MADV_DONTFORK  MADV_DONTFORK
 #else