Cross Compiling Problems

**memoody** · 2nd November 2010, 20:37

Well, I have found some tutorials that explain my previous cross compiling question, but I am still unable to build an application for a Linux Embedded environment. I think/assume it is related to some PATH or ENV setting, but I don't know what it is.

I have created two Qt Embedded Linux builds - one with "-qvfb" and one with "-embedded", doing configure, make, and make install for both of them. But, when I go into Qt Creator project options and select qmake from either of the embedded builds, I get an "This Qt-Version is invalid" error.

If I go into "Manage" from the Qt Creator project options, and I hover the mouse over either of the two embedded qmake selections, a box pops up with the qmake configuration - in there, I see that the "mkspec" entry is blank and there is no "compiler" option in the list. How do I set these?

When building the two embedded builds, I merely followed the instructions from here:
http://doc.qt.nokia.com/4.6/qvfb.html

Thanks for your help

**memoody** · 3rd November 2010, 20:39

Well, I guess I'll just keep responding to myself, hoping it'll help someone else. I've made it further along in the process, where I am now able to build and run my embedded applications for "qvfb". I think my problem was related to some sort of leftover environment variable setting or something like that. I closed all terminals and Qt Creator, reopened, and I was able to select the qvfb version of qmake to build with.

Now my next problem is that even though I have built my applications with -qvfb, they are not showing up in the QVFB instance that I am running. I am able to start QVFB from my main install of QT and configure it as I wish, but when I run my application, it does not show up in the QVFB - instead it shows up on its own with the color scheme of the buttons all screwed up (when I recompile with the normal qmake, it displays properly).

I have tried various command line options to try to force my application to show in the QVFB display, but I haven't had any luck at all. I have also tried to run the example applications (as is, and by rebuilding them), with the exact same behavior.

If anyone can help, I'd appreciate it.