File 1058-Support-ROOTDIR-passed-as-an-environment-variable-in.patch of Package erlang

From 28f2cc258cef3cac214e45336a39a9065490d49c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20de=20Bretagne?=
 <jerome.debretagne@gmail.com>
Date: Wed, 11 Nov 2020 17:32:20 +0100
Subject: [PATCH] Support ROOTDIR passed as an environment variable in erl and
 start scripts

---
 erts/etc/unix/erl.src.src | 13 ++++++++-----
 erts/etc/unix/start.src   | 13 ++++++++-----
 2 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/erts/etc/unix/erl.src.src b/erts/etc/unix/erl.src.src
index 959c099e8f..b7438f615b 100644
--- a/erts/etc/unix/erl.src.src
+++ b/erts/etc/unix/erl.src.src
@@ -1,9 +1,9 @@
 #!/bin/sh
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1996-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1996-2020. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -15,10 +15,13 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
-ROOTDIR="%FINAL_ROOTDIR%"
+if [ -z "$ROOTDIR" ]
+then
+   ROOTDIR="%FINAL_ROOTDIR%"
+fi
 BINDIR=$ROOTDIR/erts-%VSN%/bin
 EMU=%EMULATOR%%EMULATOR_NUMBER%
 PROGNAME=`echo $0 | sed 's/.*\///'`
diff --git a/erts/etc/unix/start.src b/erts/etc/unix/start.src
index bdd146951f..e3d1b8676a 100644
--- a/erts/etc/unix/start.src
+++ b/erts/etc/unix/start.src
@@ -1,9 +1,9 @@
 #!/bin/sh
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1996-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1996-2020. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -15,7 +15,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 # This program invokes the erlang emulator by calling run_erl.
@@ -25,7 +25,10 @@
 #
 # Usage: start [Data]
 #
-ROOTDIR=%FINAL_ROOTDIR%
+if [ -z "$ROOTDIR" ]
+then
+   ROOTDIR=%FINAL_ROOTDIR%
+fi
 
 if [ -z "$RELDIR" ]
 then
-- 
2.26.2