use process to start an external makefile

[knobby67]

Hi All,
I'm using Qt to call various makefiles on my Linux Ubuntu system just to automate some projects. From my reading I think I need to use process start but for some reason I can't get it to work. I know my paths ect are correct because I can use system to get make to work on a program. So in a folder I have a number of makes, SimMakefile, ArmMakefile, Linuxmakefile. Which I normally get to compile via terminal using for example "make -f SimMakefile"
So in Qt I tried

/*lets compile a game*/
    directory.setCurrent( "/home/tony/Dropbox/Development/Projects/Games/TankBattle" );
   /*just to test*/
    QDir output;
    QString newpath = output.currentPath( );
    game_path =  "make -f SimMakefile" ;
    process.start( game_path );

/*lets compile a game*/
    directory.setCurrent( "/home/tony/Dropbox/Development/Projects/Games/TankBattle" );
   /*just to test*/
    QDir output;
    QString newpath = output.currentPath( );
    game_path =  "make -f SimMakefile" ;
    process.start( game_path );

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however if I replace process start and setcurrent with linux system calls it works.

system("cd /home/tony/Dropbox/Development/Projects/Games/TankBattle");
    system("make -f SimMakefile");

system("cd /home/tony/Dropbox/Development/Projects/Games/TankBattle");
    system("make -f SimMakefile");

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I've tried make as /usr/bin/make with no luck.

Can anyone advise how I should do this in Qt rather than use system calls.
Thanks

[Lesiok]

Change line 2 to :

process.setWorkingDirectoryt( "/home/tony/Dropbox/Development/Projects/Games/TankBattle" );

process.setWorkingDirectoryt( "/home/tony/Dropbox/Development/Projects/Games/TankBattle" );

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[anda_skoa]

And I would suggest to pass the program and its arguments separately

process.start("make", QStringList() << "-f" << "Makefile");

process.start("make", QStringList() << "-f" << "Makefile");

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Cheers,
_

[knobby67]

Thankyou both got it. Getting to grips with Qt is a bit tricky the API is huge!