Deploy of Qt Concurrent

[euchkatzl]

Hi,
I use QTConcurrent::run method in my application. For that i added Qt += concurrent in my .pro File.

For deployment i use both tools from qt binaries (macdeployqt , windeployqt).

On OS X the "macdeployqt" Tool includes QtConcurrent Framework.
But the windeployqt Tool doesn't include QtConcurrent.dll .

Is it neccessary to deploy qt concurrent dll ?

I can start both executables but i wonder why (even on other machines which have no qt installed).
Can anybody give me a short explanation ?