diff --git a/configure/os/CONFIG.Common.vxWorks-ppc603 b/configure/os/CONFIG.Common.vxWorks-ppc603
index d7f99dd11..3bcc83b81 100644
--- a/configure/os/CONFIG.Common.vxWorks-ppc603
+++ b/configure/os/CONFIG.Common.vxWorks-ppc603
@@ -17,6 +17,5 @@ ARCH_CLASS = ppc
 
 # Architecture specific build flags
 ARCH_DEP_CPPFLAGS = -DCPU=PPC603  
-#ARCH_DEP_CFLAGS = -mcpu=603 -mstrict-align -mlongcall
 ARCH_DEP_CFLAGS = -mcpu=603 -mstrict-align
 
diff --git a/configure/os/CONFIG.Common.vxWorks-ppc603_long b/configure/os/CONFIG.Common.vxWorks-ppc603_long
new file mode 100644
index 000000000..32eb33d22
--- /dev/null
+++ b/configure/os/CONFIG.Common.vxWorks-ppc603_long
@@ -0,0 +1,21 @@
+# CONFIG.Common.vxWorks-ppc603_long
+#
+# $Id$
+# This file is maintained by the build community.
+#
+# Definitions for vxWorks-ppc603 target archs with at least 32MB
+# Sites may override these definitions in CONFIG_SITE.Common.vxWorks-ppc603_long
+#-------------------------------------------------------
+
+# 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 -mlongcall
+
diff --git a/configure/os/CONFIG.Common.vxWorks-ppc604 b/configure/os/CONFIG.Common.vxWorks-ppc604
index d7302af6d..605632542 100644
--- a/configure/os/CONFIG.Common.vxWorks-ppc604
+++ b/configure/os/CONFIG.Common.vxWorks-ppc604
@@ -17,6 +17,5 @@ ARCH_CLASS = ppc
 
 # Architecture specific build flags
 ARCH_DEP_CPPFLAGS = -DCPU=PPC604
-#ARCH_DEP_CFLAGS = -mcpu=604 -mstrict-align -mlongcall
 ARCH_DEP_CFLAGS = -mcpu=604 -mstrict-align
 
diff --git a/configure/os/CONFIG.Common.vxWorks-ppc604_long b/configure/os/CONFIG.Common.vxWorks-ppc604_long
new file mode 100644
index 000000000..5e29cb4b1
--- /dev/null
+++ b/configure/os/CONFIG.Common.vxWorks-ppc604_long
@@ -0,0 +1,21 @@
+# CONFIG.Common.vxWorks-ppc604_long
+#
+# $Id
+# This file is maintained by the build community.
+#
+# Definitions for vxWorks-ppc604 target archs with at least 32MB
+# Sites may override these definitions in CONFIG_SITE.Common.vxWorks-ppc604_long
+#-------------------------------------------------------
+
+# 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=PPC604
+ARCH_DEP_CFLAGS = -mcpu=604 -mstrict-align -mlongcall
+