adds the erlang base dir before calling erl

scripts/rabbitmq-defaults

@@ -18,6 +18,14 @@
 ### next line potentially updated in package install steps
 SYS_PREFIX=
 
+### next line will be updated when generating a standalone release
+ERL_DIR=
+
+### TODO fix these values
+CLEAN_BOOT_FILE="${SYS_PREFIX}/releases/${RELEASE_VERSION}/start_clean"
+SASL_BOOT_FILE="${SYS_PREFIX}/releases/${RELEASE_VERSION}/start_sasl"
+
+
 ## Set default values
 
 CONFIG_FILE=${SYS_PREFIX}/etc/rabbitmq/rabbitmq

scripts/rabbitmq-plugins

@@ -26,7 +26,7 @@
 
 ##--- End of overridden <var_name> variables
 
-exec erl \
+exec ${ERL_DIR}erl \
     -pa "${RABBITMQ_HOME}/ebin" \
     -noinput \
     -hidden \

scripts/rabbitmq-server

@@ -82,7 +82,7 @@ case "$(uname -s)" in
 esac
 
 RABBITMQ_EBIN_ROOT="${RABBITMQ_HOME}/ebin"
-if ! erl -pa "$RABBITMQ_EBIN_ROOT" \
+if ! ${ERL_DIR}erl -pa "$RABBITMQ_EBIN_ROOT" \
 	    -noinput \
 	    -hidden \
 	    -s rabbit_prelaunch \
@@ -103,7 +103,7 @@ RABBITMQ_LISTEN_ARG=
 # there is no other way of preventing their expansion.
 set -f
 
-exec erl \
+exec ${ERL_DIR}erl \
     -pa ${RABBITMQ_EBIN_ROOT} \
     ${RABBITMQ_START_RABBIT} \
     -sname ${RABBITMQ_NODENAME} \

scripts/rabbitmqctl

@@ -26,7 +26,7 @@
 
 ##--- End of overridden <var_name> variables
 
-exec erl \
+exec ${ERL_DIR}erl \
     -pa "${RABBITMQ_HOME}/ebin" \
     -noinput \
     -hidden \