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-rw-r--r--bits/mman-linux.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/bits/mman-linux.h b/bits/mman-linux.h
index 45f76f568c..a594f862dd 100644
--- a/bits/mman-linux.h
+++ b/bits/mman-linux.h
@@ -21,7 +21,10 @@
 #endif
 
 /* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.  */
+   But the kernel header is not namespace clean.
+
+   This file is also used by some non-Linux configurations of the
+   GNU C Library, for other systems that use these same bit values.  */
 
 
 /* Protections are chosen from these bits, OR'd together.  The