diff --git a/require-ess/tools/setE3Env.bash b/require-ess/tools/setE3Env.bash
index d8294f4a07582328dbf364695d9d9368061de37b..d2ddc29644646da4b07e28079b081599e4f4e7a9 100644
--- a/require-ess/tools/setE3Env.bash
+++ b/require-ess/tools/setE3Env.bash
@@ -184,35 +184,35 @@ SRC_NAME=${THIS_SRC##*/}
 # declare -g DEFAULT_REQUIRE_NAME=require
 # declare -g DEFAULT_REQUIRE_VERSION=3.4.1
 
-GENERATED_E3_CFG=$SRC_PATH/e3.cfg
+## GENERATED_E3_CFG=$SRC_PATH/e3.cfg
 
 # don't install e3.cfg when make install is executed,
 # so all varaibles are found according to the existent location
 # the symbolic link path doesn't work
 #
-if [ ! -f "${GENERATED_E3_CFG}" ]; then
-
-  E3_REQUIRE_LOCATION=${SRC_PATH%/*}
-  E3_REQUIRE_VERSION=${E3_REQUIRE_LOCATION##*/}
-  E3_REQUIRE_PATH=${E3_REQUIRE_LOCATION%/*}
-  E3_REQUIRE_NAME=${E3_REQUIRE_PATH##*/}
-  EPICS_BASE=${E3_REQUIRE_PATH%/*}
-
-else
-
-  # in e3-require/tools
-  # in case, source within e3-require
-  set -a
-  # shellcheck disable=SC1090,SC1091
-  source "$GENERATED_E3_CFG"
-  set +a
-
-  EPICS_BASE=${DEFAULT_EPICS_BASE}
-  E3_REQUIRE_NAME=${DEFAULT_REQUIRE_NAME}
-  E3_REQUIRE_VERSION=${DEFAULT_REQUIRE_VERSION}
-  E3_REQUIRE_LOCATION=${EPICS_BASE}/${E3_REQUIRE_NAME}/${E3_REQUIRE_VERSION}
+##if [ ! -f "${GENERATED_E3_CFG}" ]; then
+
+E3_REQUIRE_LOCATION=${SRC_PATH%/*}
+E3_REQUIRE_VERSION=${E3_REQUIRE_LOCATION##*/}
+E3_REQUIRE_PATH=${E3_REQUIRE_LOCATION%/*}
+E3_REQUIRE_NAME=${E3_REQUIRE_PATH##*/}
+EPICS_BASE=${E3_REQUIRE_PATH%/*}
+
+##else
+
+#  # in e3-require/tools
+#  # in case, source within e3-require
+#  set -a
+#  # shellcheck disable=SC1090,SC1091
+#  source "$GENERATED_E3_CFG"
+#  set +a
+#
+#  EPICS_BASE=${DEFAULT_EPICS_BASE}
+#  E3_REQUIRE_NAME=${DEFAULT_REQUIRE_NAME}
+#  E3_REQUIRE_VERSION=${DEFAULT_REQUIRE_VERSION}
+#  E3_REQUIRE_LOCATION=${EPICS_BASE}/${E3_REQUIRE_NAME}/${E3_REQUIRE_VERSION}
 
-fi
+#fi
 
 epics_host_arch_file="${EPICS_BASE}/startup/EpicsHostArch.pl"
 if [ -e "$epics_host_arch_file" ]; then