Is it possible to use MinGW compiler in Visual Studio

[wysota]

Yes, it's possible. Either reconfigure Visual Studio to do a custom build or simply change the QMAKESPEC to win32-g++ (or something like that) and use qmake to generate a VS project (pass -tp vc option to qmake).

[Dauntless]

Thank you for your help, but it doesn't work yet.

I get this warnings/errors when I use use qmake to generate a VS project (pass -tp vc option to qmake) with QMAKESPEC set to win32-g++:
WARNING: Unable to generate output for: C:/SVN/[...]/Makefile.Debug [TE
MPLATE vcapp]
WARNING: Unable to generate output for: C:/SVN/[...]/Makefile.Release [
TEMPLATE vcapp]

and it doesn't make the .vcproj file

N.B. It works well if I let QMAKESPEC set to win32-msvc2005 but it's not what I am looking for.

[wysota]

So maybe you can't have a vs project generated by QMake. In that case you have to use QMake directly (without generating the VS project) - create a custom build that simply calls qmake and mingw-make.

[Dauntless]

I tried doing that but I lose the debugging information for my program. I get a "binary was not build with debug information" error, and without the powerful debugging tool that VS has, I think I will go back to QDevelop where at least I have one.

Here's an article about custom builds that some might find interesting if they use VS.

N.B. I did make the debug (not the release) version of my program with mingw32-g++.

[wysota]

For debugging you can compile with MSVC. I don't think Visual Studio can debug MinGW compiled binaries.

[Dauntless]

MSVC can't compile parts of my code because I use C POSIX libraries. I know, I have to translate the code myself so it will use win32 api but it is a lot of work and I was thinking if it was possible to change just the compiler so I would use minGW, which does that job for me. Well, anyhow, thanks for your time wysota, I guess I'll stick with QDevelop for now...

[wysota]

You mean that MSVC has trouble compiling those posix libraries? MSVC has come a long way - it shouldn't have trouble with C code...