From d533edea5441115d40ffcd02bd97e64c4d5814d9 Mon Sep 17 00:00:00 2001
From: Andrew Dunstan <andrew@dunslane.net>
Date: Tue, 30 Oct 2012 13:04:24 -0400
Subject: [PATCH] Provide a default for $make_jobs to silence warnings.

Per complaint from Marti Raudsepp.
---
 run_build.pl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/run_build.pl b/run_build.pl
index 12b7ea0..afd416f 100755
--- a/run_build.pl
+++ b/run_build.pl
@@ -152,6 +152,9 @@ BEGIN
       use_vpath tar_log_cmd using_msvc extra_config make_jobs)
   };
 
+#default is no parallel build
+$make_jobs ||= 1;
+
 # legacy name
 if (defined($PGBuild::conf{trigger_filter}))
 {