Unofficial MinGW-based build of Qt 5.0.0 is now available

JKSH

Courtesy of Алексей Павлов (Alex) from the MinGW-builds project: http://lists.qt-project.org/pipermail/development/2012-December/008919.html

FINAL UPDATE (2013-01-29):

Get the latest pre-compiled packages at http://sourceforge.net/projects/mingwbuilds/files/external-binary-packages/Qt-Builds/
Get scripts to build Qt 5 yourself at https://github.com/Alexpux/Qt-builds
Get technical info about MinGW + Qt 5 at http://qt-project.org/wiki/MinGW-64-bit

inspired

Error (509)
This account's public links are generating too much traffic and have been temporarily disabled!

Any chance of a mirror link?

Just compiled my program with qt5, though it's a nightmare for the dlls, i just cannot get it to run on another test machine with no qt, msvc etc installed...

i miss the mingw where i just put some dlls in the same folder of the exe (and knew which were needed) and all was good :D

utcenter

Same problem here, I built Qt5 with MSVC2012 and cannot get the exe to run on any other machine, and worst part is I get no error, even Dependency walker doesn't help.

Maybe this build can be hosted here on the QtProject website? Dropbox ain't gonna work too good in this case...

JKSH

When I manage to download a copy, I'll set up a mirror.

In the meantime, this might help with general deployment on Windows: http://qt-project.org/forums/viewthread/23286/

utcenter

Yeah, but still no success, I bundled the following DLLs:
D3DCompiler_46.dll
libEGL.dll
libGLESv2.dll
msvcp110.dll
msvcr110.dll
Qt5Core.dll
Qt5Gui.dll
Qt5Widgets.dll
qwindows.dll

No error, no nothing, the exe just doesn't start...

JKSH

Is qwindows.dll in a subfolder ("platforms"), relative to the executable?

Failing that... try dumping all the DLLs from C:<Qt>\bin\ (and all the folders in C:<Qt>\plugins) into the directory and see if it works :P

(Hint: Instead of moving everything to the other PC to test, you can rename your Qt folder to temporarily hide Qt from your system, making it emulate a "Qt-less" machine)

JKSH

Mirror is now available (see original post)

utcenter

Checking it out. BTW I managed to get my deployment properly - turned out I wasn't using the "right" VC runtime DLL, got like 20 dlls and like 5-6 different versions.

utcenter

It works, however, there is a HUGEEEEE performance difference when compared to MSVC and even to x86 Qt4 build.

Qt5 MinGW x64:
!http://i50.tinypic.com/2zs73tg.jpg(Qt5 MinGW 64)!

Qt5 MSVC2012 x64:
!http://i46.tinypic.com/rm8gaf.png(Qt5 MSVC2012 64)!

Qt4 MinGW x86:
!http://i50.tinypic.com/69l655.jpg(Qt4 MinGW 32)!

I suspect there is something wrong with this build, it is not possible for MinGW to be almost 4 times slower than MSVC. And if anything, I expected this to be faster than 32bit Qt4 build, yet it is more than 2 times slower.

Dimbreath

[quote author="utcenter" date="1357323191"]It works, however, there is a HUGEEEEE performance difference when compared to MSVC and even to x86 Qt4 build.

Qt5 MinGW x64:
!http://i50.tinypic.com/2zs73tg.jpg(Qt5 MinGW 64)!

Qt5 MSVC2012 x64:
!http://i46.tinypic.com/rm8gaf.png(Qt5 MSVC2012 64)!

Qt4 MinGW x86:
!http://i50.tinypic.com/69l655.jpg(Qt4 MinGW 32)!

I suspect there is something wrong with this build, it is not possible for MinGW to be almost 4 times slower than MSVC. And if anything, I expected this to be faster than 32bit Qt4 build, yet it is more than 2 times slower.[/quote]

Wow, that's... slow. Let's just hope for official MinGW...

alexpux

I try to rebuild my builds of Qt5 for mingw with some optimization after 8th january and upload them. You can test perfomance again.

soroush

[quote author="alexpux" date="1357372790"]I try to rebuild my builds of Qt5 for mingw with some optimization after 8th january and upload them. You can test perfomance again.[/quote]

I just finished my optimized SDK today. It's a -O3 -mtune=native for 64 bit and -O3 -mtune=i686 for 32 bit :)

alexpux

Good :)
But I now build with "-march=nocona -mtune=core2" for 64-bit and "-march=i686 -mtune=core2" for 32-bit. Next I try to build Qt5 with ANGLE.

utcenter

[quote author="alexpux" date="1357372790"]I try to rebuild my builds of Qt5 for mingw with some optimization after 8th january and upload them. You can test perfomance again.[/quote]

Hi, I've done some optimization to my algorithm - now MinGW performance is much better, but still somewhat lower than MSVC. In fact with the improved algorithm the MinGW version is a little faster than the old MSVC version. I wonder what could have caused performance to be so low before, the version of MinGW you have bundled should support all the C++11 features that increase performance, C++11 support in MinGW is a little better than that of MSVC2012. Anyway, here are the new results:

Qt5 MSVC2012 ×64:
!http://i50.tinypic.com/2vcja4j.jpg(MSVC)!

Qt5 MinGW x64:
!http://i49.tinypic.com/2uj6pmt.png(MinGW)!

Now the performance difference is only 0.3x - much better than 4x. So the build is not that slow, as long as you code efficiently. It is still a little slower than Qt4 MinGW x86 - which gets 30 MCPS performance.

soroush

[quote author="utcenter" date="1357403992"][quote author="alexpux" date="1357372790"]I try to rebuild my builds of Qt5 for mingw with some optimization after 8th january and upload them. You can test perfomance again.[/quote]

Hi, I've done some optimization to my algorithm - now MinGW performance is much better, but still somewhat lower than MSVC. In fact with the improved algorithm the MinGW version is a little faster than the old MSVC version. I wonder what could have caused performance to be so low before, the version of MinGW you have bundled should support all the C++11 features that increase performance, C++11 support in MinGW is a little better than that of MSVC2012. Anyway, here are the new results:

Qt5 MSVC2012 ×64:
!http://i50.tinypic.com/2vcja4j.jpg(MSVC)!

Qt5 MinGW x64:
!http://i49.tinypic.com/2uj6pmt.png(MinGW)!

Now the performance difference is only 0.3x - much better than 4x. So the build is not that slow, as long as you code efficiently. It is still a little slower than Qt4 MinGW x86 - which gets 30 MCPS performance.[/quote]

can you provide more information about your testing system? I can't agree with your results. I'm experiencing average 5% of speedup with MinGW x64 compared with MSVC 2012 :/

My PC: intel Dual Core 2.4 GHz @ 4GB RAM ~ Windows 7 64 bit

MinGW
Optimization flags: "-O3 -mtune=native"
Threading model: POSIX

MSVC
Optimization flags: "/Ox"

utcenter

i7 3770k @ 4.5GHz, 16GB RAM, Windows 7 x64
The MSVC build is 64bit, I haven't really set any optimization flags, so everything should be by default

alexpux

My builds that uploaded to sourceforge.net are builded without any optimization.

mctree

Thanks for the pre-compiled package. I uncompress it and place it to c:/, and I am going to use the qt library in mingw. With qt4, I compile my source in mingw as

./configure --prefix=SOMEWHERE LIBS="-L /c/Qt/4.8.4/lib -lmingw32 -lqtmain -lQtGui4 -lQtCore4"
make
make install

that is, the libraries flag qtmain, QtGui4 and QtCore4, etc. were setup well upon the installation of qt4. But with this pre-compiled package of qt5, obviously, it won't set it up, so what to do to make it work with pkg-config so the mingw know how to compile my
code with qt dependency.

BTW, I found three folders in the package, if I only need the mingw32 compilation, so I only have to copy everything inside mingw32 folder and place them to the mingw root folder, right?

Thanks.

JKSH

[quote author="mctree" date="1357441574"]BTW, I found three folders in the package, if I only need the mingw32 compilation, so I only have to copy everything inside mingw32 folder and place them to the mingw root folder, right?[/quote]Please read the note in the original post for installation instructions.

alexpux

Hi all!
I create new project on https://github.com/Alexpux/Qt-builds where is the set of scripts to build Qt5+QtCreator with all its prerequisites and dependencies under MSYS.