diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index be8903b999..ade6ad5f45 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2012-07-26  Joel Brobecker  <brobecker@adacore.com>
+
+	* NEWS: Document new --enable-libmcheck/--disable-libmcheck
+	configure options.
+
 2012-07-26  Tristan Gingold  <gingold@adacore.com>
 
 	* machoread.c: Include gdb_bfd.h.
diff --git a/gdb/NEWS b/gdb/NEWS
index 4da886cae3..a590bee506 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -3,6 +3,15 @@
 
 *** Changes since GDB 7.5
 
+* New configure options
+
+--enable-libmcheck/--disable-libmcheck
+  By default, development versions are built with -lmcheck on hosts
+  that support it, in order to help track memory corruption issues.
+  Release versions, on the other hand, are built without -lmcheck
+  by default.  The --enable-libmcheck/--disable-libmcheck configure
+  options allow the user to override that default.
+
 * New commands (for set/show, see "New options" below)
 
 maint info bfds