From ea89df2b76811505239b508a570ac9c0ea591038 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 9 Nov 2012 18:00:33 +0100
Subject: Use vfork() instead of fork() if available
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Hopefully this reduces the chance of hitting ‘unable to fork: Cannot
allocate memory’ errors.  vfork() is used for everything except
starting builders.
---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 7333e03c0..0eb7d7632 100644
--- a/configure.ac
+++ b/configure.ac
@@ -115,6 +115,10 @@ AC_CHECK_HEADERS([sys/mount.h], [], [],
 ])
 
 
+# Check for vfork.
+AC_FUNC_FORK()
+
+
 # Check for lutimes, optionally used for changing the mtime of
 # symlinks.
 AC_CHECK_FUNCS([lutimes])
-- 
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