diff --git a/CHANGES b/CHANGES
index 19f7e868f3abaf492771ae01ed16598984de7aac..77d471a2718f8ba7aa3ec8259e1d3d78b7b44d64 100644
--- a/CHANGES
+++ b/CHANGES
@@ -340,6 +340,8 @@ Building
 o Configure
 
   Fixed issues with the LDSHARED test on some BSD-derivatives.
+ 
+  Detect systems that provide bswap16,32,64 in their libc.
 
 o Stdio