diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ddaf7da17e4..46e6d3eedc2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2003-03-08  Neil Booth  <neil@daikokuya.co.uk>
+
+	* config/sh/rtemself.h (TARGET_OS_CPP_BUILTINS): Use instead of
+	CPP_PREDEFINES.
+	* config/sh/rtems.h (TARGET_OS_CPP_BUILTINS): Use instead of
+	CPP_PREDEFINES.
+
 2003-03-08  Neil Booth  <neil@daikokuya.co.uk>
 
 	* c-common.h (c_common_init, c_common_post_options): Update.
diff --git a/gcc/config/sh/rtems.h b/gcc/config/sh/rtems.h
index b52ef7216ec..f501d19240f 100644
--- a/gcc/config/sh/rtems.h
+++ b/gcc/config/sh/rtems.h
@@ -21,6 +21,7 @@ Boston, MA 02111-1307, USA.  */
 
 /* Specify predefined symbols in preprocessor.  */
 
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__sh__ -D__rtems__ \
-  -Asystem=rtems -Acpu=sh -Amachine=sh"
+#define TARGET_OS_CPP_BUILTINS() do {		\
+  builtin_define( "__rtems__" );		\
+  builtin_assert( "system=rtems" );		\
+} while (0)
diff --git a/gcc/config/sh/rtemself.h b/gcc/config/sh/rtemself.h
index 6177c810dd1..ee98cda91f3 100644
--- a/gcc/config/sh/rtemself.h
+++ b/gcc/config/sh/rtemself.h
@@ -21,6 +21,8 @@ Boston, MA 02111-1307, USA.  */
 
 /* Specify predefined symbols in preprocessor.  */
 
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__sh__ -D__ELF__ -D__rtems__ \
-  -Asystem=rtems -Acpu=sh -Amachine=sh"
+#define TARGET_OS_CPP_BUILTINS() do {		\
+  builtin_define( "__rtems__" );		\
+  builtin_define( "__ELF__" );			\
+  builtin_assert( "system=rtems" );		\
+} while (0)