diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 253d9b75604..a34d77e47bf 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2006-10-06  J"orn Rennecke  <joern.rennecke@st.com>
+
+	* config/sh/sh.h (LIBGCC2_DOUBLE_TYPE_SIZE): Define.
+
 2006-10-05  Uros Bizjak  <uros@kss-loka.si>
 
 	* config/i386/sync.md ("sync_add<mode>", "sync_sub<mode>",
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h
index 5ce7086d0b4..fc4e1f282a4 100644
--- a/gcc/config/sh/sh.h
+++ b/gcc/config/sh/sh.h
@@ -2821,6 +2821,12 @@ struct sh_args {
    floating point types equivalent to `float'.  */
 #define DOUBLE_TYPE_SIZE ((TARGET_SH2E && ! TARGET_SH4 && ! TARGET_SH2A_DOUBLE) ? 32 : 64)
 
+#if defined(__SH2E__) || defined(__SH3E__) || defined( __SH4_SINGLE_ONLY__)
+#define LIBGCC2_DOUBLE_TYPE_SIZE 32
+#else
+#define LIBGCC2_DOUBLE_TYPE_SIZE 64
+#endif
+
 /* 'char' is signed by default.  */
 #define DEFAULT_SIGNED_CHAR  1