diff --git a/config/overlays.conf b/config/overlays.conf
deleted file mode 100644
index a0b87fe..0000000
--- a/config/overlays.conf
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/bash
-
-#
-# define PMODULES_ROOT only if it has not been passed as argument
-# to build/install scripts
-#
-: ${PMODULES_ROOT:=/opt/psi-overlays}
-: ${PMODULES_DISTFILESDIR:=/opt/psi/var/distfiles}
-: ${PMODULES_TMPDIR:=/var/tmp/${USER}}
-
-declare -x PMODULES_CONFIG_DIR='config'
-declare -x PMODULES_MODULEFILES_DIR='modulefiles'
-
-declare -x PMODULES_HOME="${PMODULES_ROOT}/Tools/Pmodules/${PMODULES_VERSION}"
-
-declare -x PMODULES_DEFAULT_GROUPS='Tools Programming'
-declare -x PMODULES_DEFINED_RELEASES=':unstable:stable:deprecated:'
-declare -x PMODULES_DEFAULT_RELEASES='stable'
-
-export     PMODULES_DISTFILESDIR
-export     PMODULES_TMPDIR
-
-#-----------------------------------------------------------------------------
-# OS specific configuration
-#
-case ${OS} in
-Darwin )
-	declare -x MACOSX_DEPLOYMENT_TARGET='10.12'
-	#declare -rx SDKROOT='macosx10.9'
-	;;
-esac
-