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-rw-r--r--include/sys/mman.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sys/mman.h b/include/sys/mman.h
index c0dd39e32..a0ac6f981 100644
--- a/include/sys/mman.h
+++ b/include/sys/mman.h
@@ -96,6 +96,7 @@ extern int madvise (void *__addr, size_t __len, int __advice) __THROW;
extern int posix_madvise (void *__addr, size_t __len, int __advice) __THROW;
#endif
+#if defined __ARCH_HAS_MMU__
/* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to
be memory resident. */
extern int mlock (__const void *__addr, size_t __len) __THROW;
@@ -111,6 +112,7 @@ extern int mlockall (int __flags) __THROW;
/* All currently mapped pages of the process' address space become
unlocked. */
extern int munlockall (void) __THROW;
+#endif
#ifdef __USE_MISC
/* Remap pages mapped by the range [ADDR,ADDR+OLD_LEN) to new length