From 90b9905bdc194f57d83af6cbfef073197b2e1232 Mon Sep 17 00:00:00 2001
From: Suresh Sundriyal <sureshsundriyal@gmail.com>
Date: Mon, 14 Sep 2015 00:59:42 -0700
Subject: [PATCH] [Autoconf] Minor cleanup.

Use the autoconf macros instead of shell constructs.
---
 configure.ac | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/configure.ac b/configure.ac
index db18680e..6815122d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,14 +27,12 @@ done
 
 dnl abssrcdir is the absolute path to the source base (regardless of where
 dnl you are building it)
-case x$srcdir in
-x/*)
-    abssrcdir=$srcdir
-    ;;
-*)
-    abssrcdir=`pwd`/$srcdir
-    ;;
-esac
+AS_CASE([x$srcdir],
+    [x/*],
+    AS_VAR_SET(abssrcdir, $srcdir),
+    AS_VAR_SET(abssrcdir, `pwd`/$srcdir)
+)
+
 AC_SUBST(abssrcdir)
 
 AC_PROG_CXX