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-rw-r--r--sysdeps/gnu/bits/utmp.h2
-rw-r--r--sysdeps/gnu/bits/utmpx.h2
-rw-r--r--sysdeps/gnu/netinet/ip_icmp.h2
3 files changed, 3 insertions, 3 deletions
diff --git a/sysdeps/gnu/bits/utmp.h b/sysdeps/gnu/bits/utmp.h
index 8a768d97c5..ebb611cf32 100644
--- a/sysdeps/gnu/bits/utmp.h
+++ b/sysdeps/gnu/bits/utmp.h
@@ -81,7 +81,7 @@ struct utmp
 #endif
 
   int32_t ut_addr_v6[4];	/* Internet address of remote host.  */
-  char __unused[20];		/* Reserved for future use.  */
+  char __glibc_reserved[20];		/* Reserved for future use.  */
 };
 
 /* Backwards compatibility hacks.  */
diff --git a/sysdeps/gnu/bits/utmpx.h b/sysdeps/gnu/bits/utmpx.h
index 6cfb31644b..271d8b7d96 100644
--- a/sysdeps/gnu/bits/utmpx.h
+++ b/sysdeps/gnu/bits/utmpx.h
@@ -78,7 +78,7 @@ struct utmpx
   struct timeval ut_tv;		/* Time entry was made.  */
 #endif
   __int32_t ut_addr_v6[4];	/* Internet address of remote host.  */
-  char __unused[20];		/* Reserved for future use.  */
+  char __glibc_reserved[20];		/* Reserved for future use.  */
 };
 
 
diff --git a/sysdeps/gnu/netinet/ip_icmp.h b/sysdeps/gnu/netinet/ip_icmp.h
index 136fb4703e..d23318c9d3 100644
--- a/sysdeps/gnu/netinet/ip_icmp.h
+++ b/sysdeps/gnu/netinet/ip_icmp.h
@@ -38,7 +38,7 @@ struct icmphdr
     u_int32_t	gateway;	/* gateway address */
     struct
     {
-      u_int16_t	__unused;
+      u_int16_t	__glibc_reserved;
       u_int16_t	mtu;
     } frag;			/* path mtu discovery */
   } un;