Multiple definition error during linking

[variganji.suresh@…]

Hi Team, I am trying to create Mutex using boost::interprocess::named_recursive_mutex(..) but in iOS 8 it failed to create a mutex due to "Opeation Not Permitted" error. When i looked into boost internal code it is trying to create a folder at "\tmp\boost_interprocess" which is not accessible.So to fix this error, i set the path form the application to a global variable in "os_file_functions.hpp" to read path in "boost:interprocess:ipcdetail::get_temporary_path". But when i tried to include "os_file_functions.hpp" in my application at multiple files, it throwing error as "Multiple definition error" during linking. Can you please let me know how to fix it.

Thanks, Suresh

[variganji.suresh@…]

code changes with multiple definition error

[Ion Gaztañaga]

You are defining a global variable in a header file, that's always a multiple definition error if the file is included twice. You must declare it in a header but define it in a cpp files.