diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 857c7027de5..0accd7e8877 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-07-04  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/44531
+	* config.gcc (sh*-*-*): Use regular expressions instead of
+	the 'i' modifier for sed substitutions.
+
 2010-07-04  Jeremie Salvucci  <jeremie.salvucci@free.fr>
 
 	* gimple.c (gimple_body): Comments added.
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 6dc074d8a88..c39b990f379 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2335,7 +2335,7 @@ sh-*-symbianelf* | sh[12346l]*-*-symbianelf* | \
 	target_cpu_default=SELECT_`echo ${sh_cpu_default}|tr abcdefghijklmnopqrstuvwxyz- ABCDEFGHIJKLMNOPQRSTUVWXYZ_`
 	tm_defines=${tm_defines}' SH_MULTILIB_CPU_DEFAULT=\"'`echo $sh_cpu_default|sed s/sh/m/`'\"'
 	tm_defines="$tm_defines SUPPORT_`echo $sh_cpu_default | sed 's/^m/sh/' | tr abcdefghijklmnopqrstuvwxyz- ABCDEFGHIJKLMNOPQRSTUVWXYZ_`=1"
-	sh_multilibs=`echo $sh_multilibs | sed -e 's/,/ /g' -e 's/^sh/m/i' -e 's/ sh/ m/gi' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ_ abcdefghijklmnopqrstuvwxyz-`
+	sh_multilibs=`echo $sh_multilibs | sed -e 's/,/ /g' -e 's/^[Ss][Hh]/m/' -e 's/ [Ss][Hh]/ m/g' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ_ abcdefghijklmnopqrstuvwxyz-`
 	for sh_multilib in ${sh_multilibs}; do
 		case ${sh_multilib} in
 		m1 | m2 | m2e | m3 | m3e | \