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-rw-r--r--sysdeps/unix/sysv/linux/x86/bits/mman.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/bits/mman.h b/sysdeps/unix/sysv/linux/x86/bits/mman.h
index ebfc0c7bd1..d897b8a2b2 100644
--- a/sysdeps/unix/sysv/linux/x86/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/x86/bits/mman.h
@@ -41,6 +41,8 @@
 # define MAP_HUGETLB	0x40000		/* Create huge page mapping.  */
 # define MAP_SYNC	0x80000		/* Perform synchronous page
 					   faults for the mapping.  */
+# define MAP_FIXED_NOREPLACE 0x100000	/* MAP_FIXED but do not unmap
+					   underlying mapping.  */
 #endif
 
 /* Include generic Linux declarations.  */