From ce37d87ff1a706e6e3cad1ea06fbcdc8eef3071e Mon Sep 17 00:00:00 2001
From: Mark Allen <mrallen1@yahoo.com>
Date: Tue, 23 May 2017 15:46:39 -0500
Subject: Always turn on 64 bit builds for macOS

---
 kerl | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/kerl b/kerl
index bbb569c..3675f38 100755
--- a/kerl
+++ b/kerl
@@ -542,6 +542,15 @@ _do_build()
         Darwin)
             OSVERSION=`uname -r`
             RELVERSION=`get_otp_version "$1"`
+
+            # Ensure that the --enable-darwin-64bit flag is set on all macOS
+            # That way even on older Erlangs we get 64 bit Erlang builds
+            # macOS has been mandatory 64 bit for a while
+            echo -n $KERL_CONFIGURE_OPTIONS | grep "darwin-64bit" 1>/dev/null 2>&1
+            if [ $? -ne 0 ]; then
+                KERL_CONFIGURE_OPTIONS = "$KERL_CONFIGURE_OPTIONS --enable-darwin-64bit"
+            fi
+
             case "$OSVERSION" in
                 16*|15*)
                     echo -n $KERL_CONFIGURE_OPTIONS | grep "ssl" 1>/dev/null 2>&1
-- 
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