From a399be7f24d58080282316d1ec529bf5aed67634 Mon Sep 17 00:00:00 2001
From: Robin Haberkorn <robin.haberkorn@googlemail.com>
Date: Tue, 24 Feb 2015 00:06:54 +0100
Subject: try hard to free heap memory after command-line termination using
 malloc_trim()

 * this is a Linux/glibc-only optimization
---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 77b71a7..e2f230f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,6 +94,11 @@ case $host in
 	;;
 esac
 
+# Check for optional GNU libc features.
+# Will probably only be found on Linux.
+AC_CHECK_HEADERS([malloc.h])
+AC_CHECK_FUNCS([malloc_trim])
+
 #
 # Config options
 #
-- 
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