From a77de33997378593b4dd68aa739ec362c882d80b Mon Sep 17 00:00:00 2001
From: Isaac Connor <iconnor@pseudo.connortechnology.com>
Date: Tue, 27 Sep 2016 12:51:04 -0400
Subject: [PATCH] add a test for lib existence

---
 scripts/zmdc.pl.in | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scripts/zmdc.pl.in b/scripts/zmdc.pl.in
index 2675e0e39..f6ccf4491 100644
--- a/scripts/zmdc.pl.in
+++ b/scripts/zmdc.pl.in
@@ -78,6 +78,11 @@ $ENV{SHELL} = '/bin/sh' if exists $ENV{SHELL};
 if ( $Config{ZM_LD_PRELOAD} ) {
   Debug("Adding ENV{LD_PRELOAD} = $Config{ZM_LD_PRELOAD}");
   $ENV{LD_PRELOAD} = $Config{ZM_LD_PRELOAD};
+  foreach my $lib ( split(/\s+/, $ENV{LD_PRELOAD} ) ) {
+    if ( ! -e $lib ) {
+      Warning("LD_PRELOAD lib $lib does not exist from LD_PRELOAD $ENV{LD_PRELOAD}.");
+    }
+  }
 }
 delete @ENV{qw(IFS CDPATH ENV BASH_ENV)};