Configuring Qmake mkspecs after it's built

[wysota]

That action isn't there in QtCreator 2.4.1.

That's a really ancient version. Why don't you upgrade to 3.x?

[davethomaspilot]

I'm using Ubuntu 12. 2.4.1 is the latest qtcreator available for it, according to apt-get.

I started with a new version of Ubuntu, but the ia32-lib that's required for cross-compiling to a raspberry pi target isn't available for the newer Ubuntu releases. I spent a lot of time trying work-arounds with no success and got nothing but silence when I asked on various forums if anyone had a solution that didn't require a 12.x Ubuntu host.

Will qtcreator 3.x work on Ubuntu 12? Can I get binaries using apt-get from somewhere, or would I have to build it? If I have to build it, can I use the qt4.8 binaries on that system? if I have to move up to qt5.x, then I have another pile o stuff to do to get qt5 up and going on the rpi.

Thanks,

Dave Thomas

[wysota]

I'm using Ubuntu 12. 2.4.1 is the latest qtcreator available for it, according to apt-get.

Forget apt-get, download QtCreator from here: http://www.qt.io/download-open-source/#section-6

I started with a new version of Ubuntu, but the ia32-lib that's required for cross-compiling to a raspberry pi target isn't available for the newer Ubuntu releases.

You can use schroot or a similar tool to have a Ubuntu 12.x installation inside your Ubuntu 14.x system.

Will qtcreator 3.x work on Ubuntu 12?

Yes.

Can I get binaries using apt-get from somewhere, or would I have to build it?

The link I gave you contains downloads for a binary release of QtCreator.

If I have to build it, can I use the qt4.8 binaries on that system? if I have to move up to qt5.x, then I have another pile o stuff to do to get qt5 up and going on the rpi.

You are confusing two things. Creator is just a tool, it has nothing to do with version of Qt you use to write your projects with. Creator is built against Qt5 but it can work with both Qt4 and Qt5 projects. Just use the download link I gave you and all will be fine.

[davethomaspilot]

You can use schroot or a similar tool to have a Ubuntu 12.x installation inside your Ubuntu 14.x system.

I'm actually running a Vmware player on windows 7. Are you suggesting running Ubuntu 12 inside 14.x in a Vm session on windows? Why, is the latest qtcreator incompatible with Ubuntu 12?

I understand QtCreator versus Qt libraries. But, I think I can do a lot of "GUI only" work on the Ubuntu host platform using Qt Designer and Qt4 stuff that will be compatible with what's available (without building qt) on the RPI. So, moving up to Qt5 on the host Ubuntu system would seem to only complicate things. Or, would it be easy to use a QtCreator built for Qt5, have the libraries it needs for running, but build local and target applications using Qt4? Whew....

I started the Wizard, but I need to know what it's going to do before I run it. It looks like I choose a Qt5 version to install.

I don't want to clobber the qt4 stuff until I understand the above issues better. Are you saying I can configure QtCreator built from Qt5 to use Qt4 for applications it builds?

Thanks!

[wysota]

I'm actually running a Vmware player on windows 7. Are you suggesting running Ubuntu 12 inside 14.x in a Vm session on windows? Why, is the latest qtcreator incompatible with Ubuntu 12?

No, you said you couldn't upgrade to newer kubuntu because of some missing library. I showed you how to do it - have a minimalistic Ubuntu 12 as a chroot in Ubuntu 14.

I understand QtCreator versus Qt libraries. But, I think I can do a lot of "GUI only" work on the Ubuntu host platform using Qt Designer and Qt4 stuff that will be compatible with what's available (without building qt) on the RPI. So, moving up to Qt5 on the host Ubuntu system would seem to only complicate things. Or, would it be easy to use a QtCreator built for Qt5, have the libraries it needs for running, but build local and target applications using Qt4? Whew....

Qt4 and Qt5 can live side by side. Qt Creator that I gave you a link to contains a bundled Qt5 environment so you don't have to build anything.

I don't want to clobber the qt4 stuff until I understand the above issues better. Are you saying I can configure QtCreator built from Qt5 to use Qt4 for applications it builds?

Just install the thing and stop worrying. I have a single instance of Creator working fine with Qt4 as well as Qt5, both native and cross-compiled. Creator is not tied to developing with any particular version of Qt. It just needs a particular version of Qt to run. And the binary release comes with one integrated which is totally separate from what you have in your system.