From 918acd1564a38c61f3cb2392d3b38f1539f14eda Mon Sep 17 00:00:00 2001
From: Ron <ron@debian.org>
Date: Sat, 18 May 2013 16:11:18 +0930
Subject: [PATCH] Use m4_esyscmd instead of m4_esyscmd_s

We shouldn't ever have any trailing newlines that need trimming here,
and the _s version wasn't added to m4sugar.m4 until autoconf 2.63b,
so this will let it work with 2.13 again.
---
 configure.ac | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index 03c36c471..060bb5237 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,12 +4,12 @@ dnl The package_version file will be automatically synced to the git revision
 dnl by the update_version script when configured in the repository, but will
 dnl remain constant in tarball releases unless it is manually edited.
 m4_define([CURRENT_VERSION],
-          m4_esyscmd_s([ if test -e package_version || ./update_version; then
-                             . ./package_version
-                             printf "$PACKAGE_VERSION"
-                         else
-                             printf "unknown"
-                         fi ]))
+          m4_esyscmd([ if test -e package_version || ./update_version; then
+                           . ./package_version
+                           printf "$PACKAGE_VERSION"
+                       else
+                           printf "unknown"
+                       fi ]))
 
 AC_INIT([opus],[CURRENT_VERSION],[opus@xiph.org])
 
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