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-rw-r--r--ChangeLog9
-rw-r--r--inet/netinet/in.h14
-rw-r--r--sysdeps/unix/sysv/linux/bits/in.h4
3 files changed, 19 insertions, 8 deletions
diff --git a/ChangeLog b/ChangeLog
index 7dfe5752a7..4e7fd30b49 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2016-06-02  Carlos O'Donell  <carlos@redhat.com>
+
+	* sysdeps/unix/sysv/linux/bits/in.h [defined _UAPI_LINUX_IN6_H ||
+	defined _UAPI_IPV6_H]: Define __USE_KERNEL_IPV6_DEFS to 1.
+	[!(defined _UAPI_LINUX_IN6_H || defined _UAPI_IPV6_H)]: Define
+	__USE_KERNEL_IPV6_DEFS to 0.
+	* inet/netinet/in.h: Use '#if !__USE_KERNEL_IPV6_DEFS'.
+	Update comment.
+
 2016-06-01  Florian Weimer  <fweimer@redhat.com>
 
 	[BZ #19861]
diff --git a/inet/netinet/in.h b/inet/netinet/in.h
index 6122ab599b..c801593b32 100644
--- a/inet/netinet/in.h
+++ b/inet/netinet/in.h
@@ -92,10 +92,10 @@ enum
     IPPROTO_MAX
   };
 
-/* If __USE_KERNEL_IPV6_DEFS is defined then the user has included the kernel
+/* If __USE_KERNEL_IPV6_DEFS is 1 then the user has included the kernel
    network headers first and we should use those ABI-identical definitions
-   instead of our own.  */
-#ifndef __USE_KERNEL_IPV6_DEFS
+   instead of our own, otherwise 0.  */
+#if !__USE_KERNEL_IPV6_DEFS
 enum
   {
     IPPROTO_HOPOPTS = 0,   /* IPv6 Hop-by-Hop options.  */
@@ -206,7 +206,7 @@ enum
 #define INADDR_ALLRTRS_GROUP    ((in_addr_t) 0xe0000002) /* 224.0.0.2 */
 #define INADDR_MAX_LOCAL_GROUP  ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */
 
-#ifndef __USE_KERNEL_IPV6_DEFS
+#if !__USE_KERNEL_IPV6_DEFS
 /* IPv6 address */
 struct in6_addr
   {
@@ -249,7 +249,7 @@ struct sockaddr_in
 			   sizeof (struct in_addr)];
   };
 
-#ifndef __USE_KERNEL_IPV6_DEFS
+#if !__USE_KERNEL_IPV6_DEFS
 /* Ditto, for IPv6.  */
 struct sockaddr_in6
   {
@@ -285,7 +285,7 @@ struct ip_mreq_source
   };
 #endif
 
-#ifndef __USE_KERNEL_IPV6_DEFS
+#if !__USE_KERNEL_IPV6_DEFS
 /* Likewise, for IPv6.  */
 struct ipv6_mreq
   {
@@ -532,7 +532,7 @@ extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in)
 #ifdef __USE_GNU
 struct cmsghdr;			/* Forward declaration.  */
 
-#ifndef __USE_KERNEL_IPV6_DEFS
+#if !__USE_KERNEL_IPV6_DEFS
 /* IPv6 packet information.  */
 struct in6_pktinfo
   {
diff --git a/sysdeps/unix/sysv/linux/bits/in.h b/sysdeps/unix/sysv/linux/bits/in.h
index d75c07b9fd..9bdadf3c8f 100644
--- a/sysdeps/unix/sysv/linux/bits/in.h
+++ b/sysdeps/unix/sysv/linux/bits/in.h
@@ -30,7 +30,9 @@
 /* This is not quite the same API since the kernel always defines s6_addr16 and
    s6_addr32. This is not a violation of POSIX since POSIX says "at least the
    following member" and that holds true.  */
-# define __USE_KERNEL_IPV6_DEFS
+# define __USE_KERNEL_IPV6_DEFS 1
+#else
+# define __USE_KERNEL_IPV6_DEFS 0
 #endif
 
 /* Options for use with `getsockopt' and `setsockopt' at the IP level.