diff --git a/config/CONFIG.Vx.ppc604 b/config/CONFIG.Vx.ppc604
index 86ac8dcf5..f81ab0c0e 100644
--- a/config/CONFIG.Vx.ppc604
+++ b/config/CONFIG.Vx.ppc604
@@ -10,5 +10,8 @@ CMPLR_SUFFIX = ppc
 ARCH_CLASS = ppc
 
 # Architecture specific build flags 
-ARCH_DEP_CPPFLAGS = -DCPU=PPC604
-ARCH_DEP_CFLAGS = -fno-for-scope -mcpu=604
+ARCH_DEP_CPPFLAGS = -DCPU=PPC604 -D_GNU_TOOL -DTRUE=1
+ARCH_DEP_CFLAGS = -mcpu=604 --no-builtin 
+
+# ARCH_DEP_CFLAGS== -fsigned-char     #May need for calcPerform.c
+
diff --git a/config/CONFIG_SITE.Vx.ppc604 b/config/CONFIG_SITE.Vx.ppc604
index bb765e7b8..94bdf15b4 100644
--- a/config/CONFIG_SITE.Vx.ppc604
+++ b/config/CONFIG_SITE.Vx.ppc604
@@ -1,3 +1,3 @@
 
-# Vx directory override for APS 
+# APS override of tornado directory for ppc
 VX_DIR_YES = /usr/local/vw/tornado101ppc