How to build qmake with -qt-xcb?

Seunghee

hi all.

first my english very poor so understand plz lol

btw,

i have problem on developing a program for embedded linux device(ARM/wayland)

```
qmake build for ARM Compiler
```

./configure -prefix /home/seunghee/Qt5.5.1/qte-arm
-arch arm -xplatform linux-arm-gnueabi-g++
-device-option CROSS_COMPILE=arm-none-linux-gnueabi-
-opensource -confirm-license -opengl es2 -nomake tests -nomake examples -no-pch

build success test app. with ARM compiler

```
failed run on device
```

root@mx6q:~/test# systemctl start layer-management-wayland.service
root@mx6q:~/test# LayerManagerControl create layer 6003 800 480
root@mx6q:~/test# LayerManagerControl set screen 1 render order 6003
root@mx6q:~/test# export XDG_RUNTIME_DIR=/tmp
root@mx6q:~/test# LayerManagerControl set surface 103 visibility 1
root@mx6q:~/test# ./untitled -platfrom wayland
This application failed to start because it could not find or load the Qt platform plugin "xcb".

Reinstalling the application may fix this problem.
Aborted

qmake build for ARM Compiler with -qt-xcb option

./configure -prefix /home/seunghee/Qt5.5.1/qte-arm
-arch arm -xplatform linux-arm-gnueabi-g++
-device-option CROSS_COMPILE=arm-none-linux-gnueabi-
-opensource -confirm-license -opengl es2 -nomake tests -nomake examples -no-pch –qt-xcb

```
failed configuration test
```

Running configuration tests...
The test for linking against libxcb failed!
You might need to install dependency packages for libxcb.
See src/plugins/platforms/xcb/README.

installed all packages on README but failed configuration test again.

SGaist

Hi and welcome to devnet,

Since you want to use wayland, did you build the QtWayland module ?

jeremy_k

@Seunghee said in How to build qmake with -qt-xcb?:

root@mx6q:~/test# ./untitled -platfrom wayland
This application failed to start because it could not find or load the Qt platform plugin "xcb".

-platfrom should be -platform.

There may be other issues, such as the lack of a QWayland build. SGaist alluded to.

./untitled -platform ? should report a list of available QPA plugins along the lines of:

This application failed to start because it could not find or load the Qt platform plugin "?".

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb.

Reinstalling the application may fix this problem.

Seunghee

thanks for reply guys.

@SGaist, @jeremy_k i didn't build QtWayland module. i'll biuld and than try again.
btw, if i build Qtwayland module, till need xcb?

jeremy_k

It's unlikely that both wayland and xcb support will be required in the same system.

small_bird

@jeremy_k Hi ! Have you solved the problem ?

The test for linking against libxcb failed!
You might need to install dependency packages for libxcb.
See src/plugins/platforms/xcb/README.

I came across the same problem ! Could you offer me help ? Thank you in advance.

And another question: how to paste code in correct format like you ?

jeremy_k

@small_bird said in How to build qmake with -qt-xcb?:

@jeremy_k Hi ! Have you solved the problem ?

I think this should be @Seunghee

The test for linking against libxcb failed!
You might need to install dependency packages for libxcb.
See src/plugins/platforms/xcb/README.

That's a good reference for XCB users, located in the Qt base source.

I came across the same problem ! Could you offer me help ? Thank you in advance.

And another question: how to paste code in correct format like you ?

There's a "COMPOSE ?" button in the upper right of the text entry field with a link to formatting rules at http://commonmark.org/help/

small_bird

@jeremy_k
Thanks for your reply !