diff --git a/configure/os/CONFIG.Common.vxWorks-ppc603 b/configure/os/CONFIG.Common.vxWorks-ppc603
new file mode 100644
index 000000000..5a4c9b9da
--- /dev/null
+++ b/configure/os/CONFIG.Common.vxWorks-ppc603
@@ -0,0 +1,21 @@
+# CONFIG.Common.vxWorks-ppc603
+#
+# $Id$
+# This file is maintained by the build community.
+#
+# Definitions for vxWorks-ppc604 target archs
+# Sites may override these definitions in CONFIG_SITE.Common.vxWorks-ppc604
+#-------------------------------------------------------
+
+# Include definitions common to all vxWorks target archs
+include $(CONFIG)/os/CONFIG.Common.vxWorksCommon
+
+# Vx GNU cross compiler suffix
+CMPLR_SUFFIX = ppc
+ 
+ARCH_CLASS = ppc
+
+# Architecture specific build flags
+ARCH_DEP_CPPFLAGS = -DCPU=PPC603  
+ARCH_DEP_CFLAGS = -mcpu=603 -mstrict-align
+