[libpng16] Imported from libpng-1.6.26beta04.tar
diff --git a/ANNOUNCE b/ANNOUNCE
index f3246eb..416e815 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -57,7 +57,8 @@
     pngwtran.c, pngwrite.c, and pngwutil.c.
 
 Version 1.6.26beta04 [October 3, 2016]
-  Quieted (bogus?) clang warnings about "absolute value has no effect".
+  Quieted (bogus?) clang warnings about "absolute value has no effect"
+    when PNG_USE_ABS is defined.
   Fixed offsets in contrib/intel/intel_sse.patch
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
diff --git a/CHANGES b/CHANGES
index 28f56fd..40aa077 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5735,7 +5735,8 @@
     pngwtran.c, pngwrite.c, and pngwutil.c.
 
 Version 1.6.26beta04 [October 3, 2016]
-  Quieted (bogus?) clang warnings about "absolute value has no effect".
+  Quieted (bogus?) clang warnings about "absolute value has no effect"
+    when PNG_USE_ABS is defined.
   Fixed offsets in contrib/intel/intel_sse.patch
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net