QMake command is executed 3 times

[Dmitriano]

I have the following section in my PRO file:

win32 {
    message(Building on Win32)
}

when I run QMake from Qt creator I get the following output:

23:48:13: Running steps for project LinesGameQt...
23:48:13: Starting: "C:\Qt\Qt5.9.1\5.9.1\msvc2015_64\bin\qmake.exe" D:\Repos\examples\src\LinesGame\LinesGameQt\LinesGameQt.pro -spec win32-msvc "CONFIG+=debug" "CONFIG+=qml_debug"
Info: creating stash file D:\Repos\examples\src\LinesGame\build-LinesGameQt-Desktop_Qt_5_9_1_MSVC2015_64bit-Debug.qmake.stash
Project MESSAGE: Building on Win32
Project MESSAGE: Building on Win32
Project MESSAGE: Building on Win32
23:48:17: The process "C:\Qt\Qt5.9.1\5.9.1\msvc2015_64\bin\qmake.exe" exited normally.
23:48:17: Starting: "C:\Qt\Qt5.9.1\Tools\QtCreator\bin\jom.exe" qmake_all

jom 1.1.2 - empower your cores

23:48:17: The process "C:\Qt\Qt5.9.1\Tools\QtCreator\bin\jom.exe" exited normally.
23:48:17: Elapsed time: 00:04.*****

why the message is repeated 3 times?

The same message with 'android' is shown only once.

android {
    message(Building on Android)
}

QMake version 3.1
Qt version 5.9.1