From 11ea86d820e8a9600078e8b8f181d1a6c25dac94 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Sat, 3 Sep 2016 18:35:26 +0300
Subject: Set config.install.sudo to [null] if sudo is empty

---
 build.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/build.sh b/build.sh
index c70f66f..5081c2c 100755
--- a/build.sh
+++ b/build.sh
@@ -139,7 +139,12 @@ case "$sys" in
     ;;
   *)
     conf_rpath="$idir/lib"
-    conf_sudo="$sudo"
+
+    if test -n "$sudo"; then
+      conf_sudo="$sudo"
+    else
+      conf_sudo="[null]"
+    fi
     ;;
 esac
 
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