From 218124c359c5d06307228a92b89193b2c12b9d06 Mon Sep 17 00:00:00 2001
From: Valient Gough <vgough@pobox.com>
Date: Sun, 17 Nov 2013 06:32:27 +0000
Subject: [PATCH] add check for std::shared_ptr

git-svn-id: http://encfs.googlecode.com/svn/branches/1.x@131 db9cf616-1c43-0410-9cb8-a902689de0d6
---
 configure.ac | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/configure.ac b/configure.ac
index 5e28b86..247fcc5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,6 +50,20 @@ AX_BOOST_SYSTEM
 AX_BOOST_SERIALIZATION
 AX_BOOST_FILESYSTEM
 
+AC_MSG_CHECKING([for std::shared_ptr])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+  [[#include <memory>]]
+  [[std::shared_ptr<int> have_shared_ptr;]])
+], [
+  AC_MSG_RESULT([yes])
+  AC_DEFINE_UNQUOTED([HAVE_STD_SHARED_PTR], 1, 
+                     [Define to 1 if you have the 'std::shared_ptr' class.])
+], [
+  AC_MSG_RESULT([no])
+  AC_DEFINE_UNQUOTED([HAVE_STD_SHARED_PTR], 0, 
+                     [Define to 1 if you have the 'std::shared_ptr' class.])
+])
+
 dnl Need to include any user specified flags in the tests below, as they might
 dnl specify required include directories..
 FUSE_FLAGS="-D_FILE_OFFSET_BITS=64 -DFUSE_USE_VERSION=26"