From 759b44135a6e8e5fe04f27f5c3ae7511596a6e09 Mon Sep 17 00:00:00 2001
From: Takeshi Nakatani <ggtakec@gmail.com>
Date: Thu, 3 Dec 2015 07:47:17 +0000
Subject: [PATCH] Check pthread prtability in configure as additional change
 for #307

---
 configure.ac    | 23 +++++++++++++++++++++++
 src/fdcache.cpp |  2 +-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index db9a005..70d8c65 100644
--- a/configure.ac
+++ b/configure.ac
@@ -228,6 +228,29 @@ dnl ----------------------------------------------
 dnl malloc_trim function
 AC_CHECK_FUNCS([malloc_trim])
 
+dnl ----------------------------------------------
+dnl check symbols/macros/enums
+dnl ----------------------------------------------
+dnl PTHREAD_MUTEX_RECURSIVE
+AC_MSG_CHECKING([pthread mutex recursive])
+AC_COMPILE_IFELSE(
+  [AC_LANG_PROGRAM([[#include <pthread.h>]],
+                   [[int i = PTHREAD_MUTEX_RECURSIVE;]])
+  ],
+  [AC_DEFINE(S3FS_MUTEX_RECURSIVE, PTHREAD_MUTEX_RECURSIVE, [Define if you have PTHREAD_MUTEX_RECURSIVE])
+   AC_MSG_RESULT(PTHREAD_MUTEX_RECURSIVE)
+  ],
+  [AC_COMPILE_IFELSE(
+    [AC_LANG_PROGRAM([[#include <pthread.h>]],
+                     [[int i = PTHREAD_MUTEX_RECURSIVE_NP;]])
+    ],
+    [AC_DEFINE(S3FS_MUTEX_RECURSIVE, PTHREAD_MUTEX_RECURSIVE_NP, [Define if you have PTHREAD_MUTEX_RECURSIVE_NP])
+     AC_MSG_RESULT(PTHREAD_MUTEX_RECURSIVE_NP)
+    ],
+    [AC_MSG_ERROR([do not have PTHREAD_MUTEX_RECURSIVE symbol])])
+  ]
+)
+
 dnl ----------------------------------------------
 dnl output files
 dnl ----------------------------------------------
diff --git a/src/fdcache.cpp b/src/fdcache.cpp
index f9634db..2593b5a 100644
--- a/src/fdcache.cpp
+++ b/src/fdcache.cpp
@@ -619,7 +619,7 @@ FdEntity::FdEntity(const char* tpath, const char* cpath)
   try{
     pthread_mutexattr_t attr;
     pthread_mutexattr_init(&attr);
-    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);   // recursive mutex
+    pthread_mutexattr_settype(&attr, S3FS_MUTEX_RECURSIVE);   // recursive mutex
     pthread_mutex_init(&fdent_lock, &attr);
     is_lock_init = true;
   }catch(exception& e){