[aisleriot] build: Run configure script with bash

[Christian Persch <chpe src gnome org>]

commit f2525b5fbea5d221a6a361a97334dfec956665dd
Author: Christian Persch <chpe gnome org>
Date:   Thu Mar 20 16:55:55 2014 +0100

    build: Run configure script with bash
    
    https://bugzilla.gnome.org/show_bug.cgi?id=726780

 configure.ac |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index a6e6dd9..ff03859 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,9 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
+# Make sure we run under bash
+m4_divert_once([BINSH], [ %:@! /usr/bin/env bash])
+
 AC_PREREQ([2.53])
 AC_INIT([GNOME Patience], [3.11.0],
   [http://bugzilla.gnome.org/enter_bug.cgi?product=aisleriot],