diff --git a/config/CONFIG.Vx.ppc603 b/config/CONFIG.Vx.ppc603
index fc1b9961c..d69cdb00b 100644
--- a/config/CONFIG.Vx.ppc603
+++ b/config/CONFIG.Vx.ppc603
@@ -14,4 +14,3 @@ ARCH_DEP_CPPFLAGS = -DCPU=PPC603 -DTRUE=1
 ARCH_DEP_CFLAGS = -mcpu=603 --no-builtin -mstrict-align
 
 # ARCH_DEP_CFLAGS+= -fsigned-char     #May need for calcPerform.c
-# ARCH_DEP_CFLAGS+= -mlongcall        #May need if over 32MB
diff --git a/config/CONFIG.Vx.ppc603_long b/config/CONFIG.Vx.ppc603_long
new file mode 100644
index 000000000..bfc82da60
--- /dev/null
+++ b/config/CONFIG.Vx.ppc603_long
@@ -0,0 +1,16 @@
+# $Id$
+#
+# This file is maintained by the EPICS community.
+
+# Vx GNU cross compiler suffix
+CMPLR_SUFFIX = ppc
+ 
+# For Vx directories of form:
+#   $(VX_DIR)/$(HOST_ARCH).$(ARCH_CLASS)/bin
+ARCH_CLASS = ppc
+
+# Architecture specific build flags 
+ARCH_DEP_CPPFLAGS = -DCPU=PPC603 -DTRUE=1
+ARCH_DEP_CFLAGS = -mcpu=603 --no-builtin -mstrict-align -mlongcall
+
+# ARCH_DEP_CFLAGS+= -fsigned-char     #May need for calcPerform.c
diff --git a/config/CONFIG.Vx.ppc604 b/config/CONFIG.Vx.ppc604
index aa4e60ac1..8a2e0ea77 100644
--- a/config/CONFIG.Vx.ppc604
+++ b/config/CONFIG.Vx.ppc604
@@ -14,5 +14,4 @@ ARCH_DEP_CPPFLAGS = -DCPU=PPC604 -D_GNU_TOOL -DTRUE=1
 ARCH_DEP_CFLAGS = -mcpu=604 --no-builtin -mstrict-align
 
 # ARCH_DEP_CFLAGS+= -fsigned-char     #May need for calcPerform.c
-# ARCH_DEP_CFLAGS+= -mlongcall        #May need if over 32MB
 
diff --git a/config/CONFIG.Vx.ppc604_long b/config/CONFIG.Vx.ppc604_long
new file mode 100644
index 000000000..86a1cf561
--- /dev/null
+++ b/config/CONFIG.Vx.ppc604_long
@@ -0,0 +1,17 @@
+# $Id$
+#
+# This file is maintained by the EPICS community.
+
+# Vx GNU cross compiler suffix
+CMPLR_SUFFIX = ppc
+ 
+# For Vx directories of form:
+#   $(VX_DIR)/$(HOST_ARCH).$(ARCH_CLASS)/bin
+ARCH_CLASS = ppc
+
+# Architecture specific build flags 
+ARCH_DEP_CPPFLAGS = -DCPU=PPC604 -D_GNU_TOOL -DTRUE=1
+ARCH_DEP_CFLAGS = -mcpu=604 --no-builtin -mstrict-align -mlongcall
+
+# ARCH_DEP_CFLAGS+= -fsigned-char     #May need for calcPerform.c
+