Index: boost/interprocess/detail/os_file_functions.hpp
===================================================================
--- boost/interprocess/detail/os_file_functions.hpp	(revision 52581)
+++ boost/interprocess/detail/os_file_functions.hpp	(working copy)
@@ -311,12 +311,13 @@
 
 inline const char *get_temporary_path()
 {  
+   struct stat data;
    const char *dir = std::getenv("TMPDIR"); 
-   if(!dir){
+   if(!dir || ::stat(dir, &data) != 0){
       dir = std::getenv("TMP");
-      if(!dir){
+      if(!dir || ::stat(dir, &data) != 0){
          dir = std::getenv("TEMP");
-         if(!dir){
+         if(!dir || ::stat(dir, &data) != 0){
             dir = "/tmp";
          }
       }