[Solved] How can I add a compiler?

onek24

You can imagine it that way:

Qt is just here to help you develop applications. It has a large amount of classes you can use and the qt creator(the gui which helps you develop applications with qt). It's far more - but let's keep it simple.
If you want to compile an application for an platform, then you'll need an compiler which can compile it for that platform. For windows, microsoft provided an compiler which is included in the MSVC(Microsoft Visual C++) package.

So lets say you want to compile for windows: You'll need MSVC. Afaik Qt isn't allowed to put MSVC into their installation, so you'll have to download and install MSVC on your own.

Theoretically you can compile a Qt application for windows now. But it would take a very long time to compile all the qt code from the Qt classes you use because it's a large amount of code. Therefore you can download the precompiled qt classes. That means some guy compiled them using an compiler for a spezific platform (lets say MSVC for windows) and put them free for download. So if you download these packages you won't have to compile them a second time!

I hope i could explain it a bit. I cut a few steps and informations but i tried to keep it simple. :)

onek24

@Rela said:

Thank you, your help is so helpful, since from last week I am just involving with this compiler problem.

I see 5 marked MSVC2013 for 64 and 32, how to know which two ones I should choose?MSVC components

If you read it again you'll see that it isn't msvc2013 only. It has also packages for msvc2012 and msvc2010! It has also msvc OpenGL packages - which you won't need now(i guess).

I would take the newest:

msvc2013 32-bit
msvc2013 64-bit

Select the ones without OpenGL.

onek24

@Rela

To understand the precompiled-package part you might want to check out this wikipedia-link:

Dynamic-link library

Just read it a bit and it might explain you the purposes of Dynamic-linked libraries(DLL). The precompiled-package contains DLLs. :)

Rela

@onek24

Thanks onek24. I just chose 2013 ones without OpenGL, now it works.
The MinGW was among the removed components when I was installing Qt, since It took a lot of space, I removed some of them.

I am working with Qt5.4 vertsion and MinGW compiler now, but could you please tell me if I want to develop interface for the algorithm in MVS 2010 later, what I need to do? I think one way is installing MVS2013, but if I want to keep MVS2010 what the other option is?

onek24

@Rela

You're welcome. Afaik you don't need MSVC if you work with the MinGW compiler. If you installed Visual Studio and the corresponding MSVC-Package in the MaintenanceTool, then you can compile with the MSVC compiler.

I'm sorry but i'm currently not understanding in what form the algorithm is. Do you have the source-code or what is it? Please explain a little bit further.

Rela

@onek24

The code is in C++, and I have installed MVS2010.

In Qt, when I go to tools>options>compilers these MVS2013 are shown:link
My question was that if I want to have a GUI for my code is it possible to work with MinGW as a compiler or I need to install MVS20103?

onek24

So your algorithm is just c++ code you want to implement? Since Qt can detect your compilers, you have already installed MSVC. Please go to the section "kits" in the "settings" -> "build & run" and show me whats listed. If you can find something named "Desktop MSVC"(or something like that) then you can compile with the msvc compiler. If you go to the bottom left, you can see "Bucky 4" and below it "Debug". Click on it and select MSVC if you can find it. If you can't, then go to "Projects" in the big left menue and add the Kit "MSVC".

onek24

@JKSH said:

One thing to keep in mind: The different versions of MSVC are incompatible. If the Qt DLLs are built with MSVC 2010, then you cannot use those DLLs with MSVC 2012.
Since the user wants to use MSVC 2010, he will need to download the binaries built with MSVC 2010.

But if you've got just c++ code, then you maybe can compile it with a newer MSVC without problems.

Rela

@onek24

Yes, the code is C++. My problem from the beginning was that I couldn’t run using MSVC.
Here is the “Kits”:Kits
Here is “Debug” options:Debug

When I click on MSVC2013, it gives the same compiler error.
I think because my installed MVS is 2010, and this Qt works with MVS 2013. But just I wanted to be sure that it is possible to work with MinGW as a compiler for my GUI of C++ code or I need to install MVS2013?

onek24

@Rela

Okay, run the MaintenanceTool and select the MSVC2010 packages. Install them and afterwards try again. WIth that you should be able to compile with MSVC2010. Otherwise you might try installing MSVC2013 from the windows site and compile it with MSVC2013. I - personally - don't like MinGW, but you could try compiling your algorithm-code with MinGW, i can't tell if it will work since i don't know the code.

Rela

@onek24

Thanks.
I selected the MSVC2010 32-bit OpenGL from the list in Maintenance toll, then in Projects I selected "Desktop Qt 5.4.2 MSVC2010 OpenGL 32bit" in "Add Kit" list, run and build it, and ran the program and it worked. Build & Run
I hope it works later with my code also, but does it matter my computer is 64 bit?

onek24

@Rela said:

Thanks.
I selected the MSVC2010 32-bit OpenGL from the list in Maintenance toll, then in Projects I selected "Desktop Qt 5.4.2 MSVC2010 OpenGL 32bit" in "Add Kit" list, run and build it, and ran the program and it worked. Build & Run
I hope it works later with my code also, but does it matter my computer is 64 bit?

You're welcome. Well, it shouldnt. You can run 32-bit and 64-bit applications on a 64-bit machine, but only 32-bit applications on a 32-bit machine. If your code is explicitely designed to work with 64-bit(using 64-bit integers or whatever), than it might not work with 32-bit. On the other hand, if it works with 32-bit, than it will work with 64-bit.