From 3761a03d6bb3d91e5da0a9562e778654f59ab2a3 Mon Sep 17 00:00:00 2001
From: Mike Fitzpatrick <mjfitzpatrick@gmail.com>
Date: Mon, 8 Jan 2024 22:31:43 -0600
Subject: [PATCH] fix ecl.e for old/new linux distros

---
 self_install | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/self_install b/self_install
index c4d745a59..5f13a6b99 100755
--- a/self_install
+++ b/self_install
@@ -40,3 +40,18 @@ cat x11iraf/XGterm.ad >> $HOME/.Xdefaults
 if [ ! -f $HOME/.imtoolrc ]; then
     cp dev/imtoolrc $HOME/.imtoolrc
 fi
+
+
+# Patch up the ECL binary for the appropriate Linux version.  Older systems
+# (e.g. CentOS 6.9) will use a version of the readline/ncurses/tinfo
+# libraries that are dated on newer systems to an incompatible version.
+# By default we're configured for the newer platforms, here we simply 
+# force the correct version.
+
+rm bin.linux64/ecl.e
+if [ -e /usr/lib64/libreadline.so.7 ] && [ -h /usr/lib64/libreadline.so.7 ];
+then
+    ln -s ${PWD}/bin.linux64/ecl.e-readline.7 ${PWD}/bin.linux64/ecl.e
+else
+    ln -s ${PWD}/bin.linux64/ecl.e-readline.6 ${PWD}/bin.linux64/ecl.e
+fi