diff --git a/configure/os/CONFIG.Common.vxWorks-mpc8540 b/configure/os/CONFIG.Common.vxWorks-mpc8540
index 066c07db4..a2b115007 100644
--- a/configure/os/CONFIG.Common.vxWorks-mpc8540
+++ b/configure/os/CONFIG.Common.vxWorks-mpc8540
@@ -1,4 +1,4 @@
-# $Id
+# $Id$
 #
 # Definitions for vxWorks-mpc8540 targets: MPC8540 CPU with >32MB RAM.
 # Site-specific overrides go in CONFIG_SITE.Common.vxWorks-mpc8540
@@ -9,13 +9,16 @@
 # Include definitions common to all vxWorks target archs
 include $(CONFIG)/os/CONFIG.Common.vxWorksCommon
 
+GNU_DIR_5 = $(WIND_BASE)/gnu/3.3/$(WIND_HOST_TYPE)
+
 # Vx GNU cross compiler suffix
 CMPLR_SUFFIX = ppc
- 
+
 ARCH_CLASS = ppc
 
 # Architecture specific build flags
-ARCH_DEP_CPPFLAGS = -DCPU=PPC32
-ARCH_DEP_CFLAGS = -mcpu=8540 -msoft-float -mstrict-align -mlongcall
+ARCH_DEP_CPPFLAGS = -DCPU=PPC85XX
+ARCH_DEP_CFLAGS = -mcpu=8540 -msoft-float -mspe=no -mabi=no-spe
+ARCH_DEP_CFLAGS += -mstrict-align -mlongcall
 
 GNU_TARGET = powerpc-wrs-vxworks