MinGw-w64 Download

[Mylavarapu.Manikanta]

Hi to all.
-->I am new to Qt.I am using Qt 5.9(LTS).
-->Currently MinGw53_32(32-bit compiler) is installed,it will support only for 32-bit target.
-->I want to compile for both 32-bit & 64-bit with the help of MinGw-w64 compiler.
So How can i install MinGw-w64 compiler & what are all the required softwares.

If anyone knows,please give me a solution

[JKSH]

Hi @Mylavarapu.Manikanta, currently the Qt Project does not provide a downloadable package for 64-bit MinGW.

If you want to use 64-bit Qt, you need to install MinGW-w64 first. Then, download the Qt source code and build Qt yourself using MinGWw-64: http://download.qt.io/official_releases/qt/5.9/5.9.3/single/

You can read about the required software at http://wiki.qt.io/Building_Qt_5_from_Git

See also http://wiki.qt.io/MinGW-64-bit

[Mylavarapu.Manikanta]

Thank you JKSH.
I have following doubts.
My Host pc consists Windows 10,64-bit and 32-bit.
-->I Want to compile on both 32 and 64 bit.
-->The Information from this page https://stackoverflow.com/questions/38335424/how-to-use-mingw-64-with-qt-creator said that, if you want to go with Qt Creator download from here https://sourceforge.net/projects/mingw-w64/files/Toolchains targetting Win64/Personal Builds/mingw-builds/, Here which version can i download(Assume 7.2.0 choosen).After selecting a version, which one can i select(x86_64-posix-sjlj or x86_64-posix-seh or x86_64-win32-sjlj or x86_64-win32-seh)

[JKSH]

You're welcome. However, I'd like to point out that I haven't used the packages from https://sourceforge.net/projects/mingw-w64/files/Toolchains targetting Win64/Personal Builds/mingw-builds/ before. I don't know if there are any issues with using those packages with Qt.

@Mylavarapu.Manikanta said in MinGw-w64 Download:

Here which version can i download(Assume 7.2.0 choosen).

7.2.0 is the latest, so I would choose that.

After selecting a version, which one can i select(x86_64-posix-sjlj or x86_64-posix-seh or x86_64-win32-sjlj or x86_64-win32-seh)

I don't think it matters, because you will use that toolkit to compile Qt yourself.

Anyway, https://stackoverflow.com/questions/38335424/how-to-use-mingw-64-with-qt-creator suggests POSIX-SEH

[Mylavarapu.Manikanta]

Thank you JKSH.
-->Actually my requirement is to develop one GUI application such that it can run on RedHat Linux 7.2,Xenoami 2.6,Windows 10&7,Qnx 6.6.
-->Now I want to develop qt application that can run on RedHat Linux 7.2(GCC Version - 4.8.5). So can i download directly "Qt executable for linux os" from Qt site (or) again any compilation of qt source code is required to run on RedHat Linux 7.2.

[JKSH]

@Mylavarapu.Manikanta said in MinGw-w64 Download:

-->Actually my requirement is to develop one GUI application such that it can run on RedHat Linux 7.2,Xenoami 2.6,Windows 10&7,Qnx 6.6.

Qt is the right tool for the job :) You can write your GUI code once, and then compile the same code for each OS.

-->Now I want to develop qt application that can run on RedHat Linux 7.2(GCC Version - 4.8.5). So can i download directly "Qt executable for linux os" from Qt site (or) again any compilation of qt source code is required to run on RedHat Linux 7.2.

RHEL 7.2 is one of the officially-supported platforms (see https://doc.qt.io/qt-5/supported-platforms-and-configurations.html ) so you should be able to download the Qt executable for Linux.

By the way, Qt 5.9.4 was just released, which contains lots of bug fixes: http://blog.qt.io/blog/2018/01/23/qt-5-9-4-released/

[Mylavarapu.Manikanta]

Thank you JKSH.
Here https://doc.qt.io/qt-5/supported-platforms-and-configurations.html under qt 5.9 supported platforms ,GCC 5.3.1 is mentioned for Red Hat Enterprise Linux 7.2 (64-bit).

-->But My Red Hat Enterprise Linux 7.2 (64-bit) GCC version is "4.8.5".So will it support or not?

[JKSH]

@Mylavarapu.Manikanta said in MinGw-w64 Download:

Here https://doc.qt.io/qt-5/supported-platforms-and-configurations.html under qt 5.9 supported platforms ,GCC 5.3.1 is mentioned for Red Hat Enterprise Linux 7.2 (64-bit).

-->But My Red Hat Enterprise Linux 7.2 (64-bit) GCC version is "4.8.5".So will it support or not?

Hmm... good question. I don't know, sorry. If GCC 5.3.1 is backward-compatible with GCC 4.8.5, then you can install and use the official package without issues.

Wait a while and see if someone else who has Linux experience can answer your question here. If not, subscribe to the Interest mailing list (http://lists.qt-project.org/mailman/listinfo/interest ) and ask there. Qt engineers use that list, and they should be able to answer you.

[Mylavarapu.Manikanta]

Thank you JKSH.
-->QT was installed along with required GCC compiler(Here GCC 5.3.1).So no need of worry about host pc GCC compiler versions.
-->But when I compiling a sample application "Can not find -lGL" error is showing.
-->It seems like compiler cannot find the required library.
-->My host pc configuration is: Redhat Linux 7.2,64-bit.
Please tell me the solution

[JKSH]

@Mylavarapu.Manikanta said in MinGw-w64 Download:

-->QT was installed along with required GCC compiler(Here GCC 5.3.1).So no need of worry about host pc GCC compiler versions.

Good!

-->But when I compiling a sample application "Can not find -lGL" error is showing.
-->It seems like compiler cannot find the required library.

Yes, a required library is missing.

If you search this forum (or even the Internet) for this error message, you should be able to find out which library you need.

-->My host pc configuration is: Redhat Linux 7.2,64-bit.

Your error message is quite common for many different Linux distros, not just Red Hat.