diff --git a/src/softIoc/Makefile b/src/softIoc/Makefile
index 49d027393..426e2f3e4 100644
--- a/src/softIoc/Makefile
+++ b/src/softIoc/Makefile
@@ -18,7 +18,8 @@ PROD_IOC_vxWorks = -nil-
 DBD += softIoc.dbd
 softIoc_DBD += base.dbd
 
-USR_CXXFLAGS += -DEPICS_BASE=$(shell $(PERL) ../absPath.pl $(INSTALL_LOCATION))
+ABS_INSTALL_DIR = $(shell $(PERL) $(TOOLS)/fullPathName.pl $(INSTALL_LOCATION))
+USR_CXXFLAGS += -DEPICS_BASE=$(ABS_INSTALL_DIR)
 
 softIoc_SRCS += softIoc_registerRecordDeviceDriver.cpp
 softIoc_SRCS += softMain.cpp
diff --git a/src/softIoc/absPath.pl b/src/softIoc/absPath.pl
deleted file mode 100644
index 4170efb87..000000000
--- a/src/softIoc/absPath.pl
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/usr/bin/perl
-#*************************************************************************
-# Copyright (c) 2002 The University of Chicago, as Operator of Argonne
-#     National Laboratory.
-# Copyright (c) 2002 The Regents of the University of California, as
-#     Operator of Los Alamos National Laboratory.
-# EPICS BASE Versions 3.13.7
-# and higher are distributed subject to a Software License Agreement found
-# in file LICENSE that is included with this distribution. 
-#*************************************************************************
- 
-use Cwd;
-
-chdir $ARGV[0];
-
-print cwd();