diff --git a/ChangeLog b/ChangeLog
index 624078b12c..b07f1db0a0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-12-03  Mike Frysinger  <vapier@gentoo.org>
+
+	* bits/byteswap.h [__GNUC__]: Change __GNUC_PREREQ from 4.2 to 4.3.
+	* sysdeps/x86/bits/byteswap.h [__GNUC__]: Likewise.
+
 2012-12-03  Jeff Law  <law@redhat.com>
 
 	* time/sys/time.h (settimeofday): Do not mark TV argument
diff --git a/bits/byteswap.h b/bits/byteswap.h
index e19e91ada7..7e5daedb83 100644
--- a/bits/byteswap.h
+++ b/bits/byteswap.h
@@ -39,7 +39,7 @@
       (((x) & 0x0000ff00u) <<  8) | (((x) & 0x000000ffu) << 24))
 
 #ifdef __GNUC__
-# if __GNUC_PREREQ (4, 2)
+# if __GNUC_PREREQ (4, 3)
 static __inline unsigned int
 __bswap_32 (unsigned int __bsx)
 {
@@ -70,7 +70,7 @@ __bswap_32 (unsigned int __bsx)
 		     | (((x) & 0x000000000000ff00ull) << 40)		      \
 		     | (((x) & 0x00000000000000ffull) << 56)))
 
-# if __GNUC_PREREQ (4, 2)
+# if __GNUC_PREREQ (4, 3)
 static __inline __uint64_t
 __bswap_64 (__uint64_t __bsx)
 {
diff --git a/sysdeps/x86/bits/byteswap.h b/sysdeps/x86/bits/byteswap.h
index babe567432..581687c7f2 100644
--- a/sysdeps/x86/bits/byteswap.h
+++ b/sysdeps/x86/bits/byteswap.h
@@ -40,7 +40,7 @@
       (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
 
 #ifdef __GNUC__
-# if __GNUC_PREREQ (4, 2)
+# if __GNUC_PREREQ (4, 3)
 static __inline unsigned int
 __bswap_32 (unsigned int __bsx)
 {
@@ -104,7 +104,7 @@ __bswap_32 (unsigned int __bsx)
 		     | (((x) & 0x000000000000ff00ull) << 40)		      \
 		     | (((x) & 0x00000000000000ffull) << 56)))
 
-# if __GNUC_PREREQ (4, 2)
+# if __GNUC_PREREQ (4, 3)
 static __inline __uint64_t
 __bswap_64 (__uint64_t __bsx)
 {