From a9857bf98b5f2bbffb85afec696e2762f4f96091 Mon Sep 17 00:00:00 2001
From: Bert Wesarg <bert.wesarg@tu-dresden.de>
Date: Thu, 26 Jan 2017 21:38:53 +0100
Subject: [PATCH] build: Fix warning about linking with a non-POSIX ar.

```
ltlibrary.am: warning: 'libunwind-sh.la': linking libtool libraries using a non-POSIX
ltlibrary.am: archiver requires 'AM_PROG_AR' in 'configure.ac'
src/Makefile.am:622:   while processing Libtool library 'libunwind-sh.la'
```
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index 21bae907..2fa3584d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,6 +17,7 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
+AM_PROG_AR
 LT_INIT
 AM_PROG_AS
 AM_PROG_CC_C_O