diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4980b956484..2a8de0abc1a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2009-03-23 Bingfeng Mei  <bmei@broadcom.com>
+
+	* config.gcc (need_64bit_hwint): Make clear that need_64bit_hwint 
+	should be set true if BITS_PER_WORD of target is bigger than 32
+
 2009-03-22  Hans-Peter Nilsson  <hp@axis.com>
 
 	* config/cris/linux.h (CRIS_LINK_SUBTARGET_SPEC):
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 99741c30d9a..2645e5ab2b3 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -146,8 +146,9 @@
 #			system normally uses GNU as.
 #
 #  need_64bit_hwint	Set to yes if HOST_WIDE_INT must be 64 bits wide
-#			for this target.  This is true iff this target
-#			supports "long" or "wchar_t" wider than 32 bits.
+#			for this target.  This is true if this target
+#			supports "long" or "wchar_t" wider than 32 bits,
+#			or BITS_PER_WORD is wider than 32 bits.
 #			The setting made here must match the one made in
 #			other locations such as libcpp/configure.ac
 #