diff --git a/ChangeLog b/ChangeLog
index 41aac3c2e6..2d28945eaf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sat Sep 25 10:05:49 2010  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: Always add -mieee for Renesas SH4.
+	Thanks, Nobuhiro Iwamatsu. [Feature #3874] [ruby-core:32548]
+
 Sat Sep 25 01:34:41 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* Makefile.in (install-cross): target to install cross-compiling
diff --git a/configure.in b/configure.in
index 5a29f2cb84..fe6f09c0ae 100644
--- a/configure.in
+++ b/configure.in
@@ -991,7 +991,7 @@ if test "${enable_win95}" = yes; then
 fi
 
 AS_CASE(["$target_cpu"],
-[alpha*], [AS_CASE(["$target_os"::"$GCC"],
+[alpha*|sh4|sh4el|sh4eb], [AS_CASE(["$target_os"::"$GCC"],
 		[*::yes],  # gcc
 			[CFLAGS="-mieee $CFLAGS"],
 		[osf*],    # ccc