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From a3d4f4f2385394b822b8f66342de8a1e3b4217bb Mon Sep 17 00:00:00 2001
From: Peter Korsgaard <peter@korsgaard.com>
Date: Sun, 8 Dec 2013 10:54:25 +0100
Subject: [PATCH] configure.ac: fix bashism in ARM optimization handling

Submitted upstream:
http://lists.xiph.org/pipermail/opus/2013-December/002422.html

Breaks configure when /bin/sh isn't bash with:

configure: Trying to force-enable ARMv6 media instructions...
checking if assembler supports ARMv6 media instructions on ARM... yes
configure: Trying to force-enable NEON instructions...
checking if assembler supports NEON instructions on ARM... yes
./configure.lineno: 12799: Bad substitution

Fix it by using the %% expansion to remove everything from the first
space instead.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 0ba4a80..443362f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -333,9 +333,9 @@ AS_IF([test x"${enable_asm}" = x"yes"],[
 
 AM_CONDITIONAL([CPU_ARM], [test "$cpu_arm" = "yes"])
 AM_CONDITIONAL([OPUS_ARM_INLINE_ASM],
-    [test x"${inline_optimization:0:3}" = x"ARM"])
+    [test x"${inline_optimization%% *}" = x"ARM"])
 AM_CONDITIONAL([OPUS_ARM_EXTERNAL_ASM],
-    [test x"${asm_optimization:0:3}" = x"ARM"])
+    [test x"${asm_optimization%% *}" = x"ARM"])
 
 AS_IF([test x"$enable_rtcd" = x"yes"],[
     AS_IF([test x"$rtcd_support" != x"no"],[
-- 
1.8.4.rc3

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