Project ERROR: You cannot configure qt separately within a top-level build

ChetanM

Re: Project ERROR: You cannot configure qt separately within a top-level build. ?
Hi I am trying to cross compile Qt5 for beaglebone black (BBB),
My BBB runs debian 10, and has gcc 8.3.0
Linux beaglebone 4.19.94-ti-r43 #1buster SMP PREEMPT Wed Apr 22 06:11:16 UTC 2020
armv7l GNU/Linux

root@beaglebone:/home/debian# arm-linux-gnueabihf-gcc --version
arm-linux-gnueabihf-gcc (Debian 8.3.0-6) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.

Desktop Version Linux Ubuntu 16.04

Description: Ubuntu 16.04.7 LTS
Release: 16.04
Codename: xenial

-VirtualBox 4.15.0-142-generic #146~16.04.1-Ubuntu SMP
Tue Apr 13 09:27:15 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

I have downloaded GCC 8.3.0 for "gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf.tar"
and QT5 source qt-everywhere-src-5.15.2.tar

i have followed steps suggested by @jsulm in "https://forum.qt.io/topic/122297/beaglebone-cross-compile-setup/2"

later i faced the infolder issue and changed the folder structure as per links ,

now my folder structure is
"/home/chetan/QtForBBB/qt5/qt5base/"
my configure command is
../qt5/qt5base/qtbase/configure -top-level -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/home/chetan/gcc-linaro/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /home/chetan/bbb-rootfs -opensource -confirm-license -optimized-qmake -release -make libs -prefix /usr/local/qt5bbb -hostprefix /usr/local/qt5bbb -qt-zlib -qt-libpng -openssl -v

Please help me what i am missing

Regards
Chetan

jsulm

@ChetanM said in Project ERROR: You cannot configure qt separately within a top-level build:

-top-level

Why?

ChetanM

@jsulm

I followed steps from the below link ,
"https://forum.qt.io/topic/122297/beaglebone-cross-compile-setup/2"

after i remove -top-level i get the following
Info: creating cache file /home/chetan/QtForBBB/build_qt/.qmake.cache
Project ERROR: You cannot configure qtbase separately within a top-level build.

jsulm

@ChetanM Please follow https://wiki.qt.io/Building_Qt_5_from_Git and don't build inside source tree!

ChetanM

Thanks for the response @jsulm , i will try to do the steps mentioned ,
my dir structure is
├── build_qt
│   ├── bin
│   ├── mkspecs
│   └── qmake
└── qt5
└── qt5base

I can issue build fro build_qt dir correct , qt5base will have the code

Should i replace the QT code and continue the same steps for cross compilation .? Or are there different steps for cross compilation , I need QT for beagle bone black .

Thanks
Chetan.M

jsulm

@ChetanM said in Project ERROR: You cannot configure qt separately within a top-level build:

Should i replace the QT code and continue the same steps for cross compilation .?

No need to replace Qt code as it is the same.
For cross compilation you need a sysroot and cross-compiler for your device.

ChetanM

@jsulm i mean replace earlier QT code and cross compile the one from git .
I have got the sys root for Debian image

../qt5/qt5base/qtbase/configure -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/home/chetan/gcc-linaro/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
-sysroot /home/chetan/bbb-rootfs -opensource -confirm-license -optimized-qmake -release -make libs -prefix /usr/local/qt5bbb -hostprefix /usr/local/qt5bbb -qt-zlib -qt-libpng -openssl -v

Is this correct

jsulm

@ChetanM said in Project ERROR: You cannot configure qt separately within a top-level build:

Is this correct

Probably, just try

ChetanM

Hi @jsulm ,

I still get the error
Project ERROR: You cannot configure qtbase separately within a top-level build.

This is my configure
../qtsrc/qt5/qtbase/configure -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/home/chetan/gcc-linaro/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /home/chetan/bbb-rootfs -opensource -confirm-license -optimized-qmake -release -make libs -prefix /usr/local/qt5bbb -hostprefix /usr/local/qt5bbb -qt-zlib -qt-libpng -openssl -v

├── build_qt
│   ├── bin
│   ├── include
│   ├── mkspecs
│   └── qmake
└── qtsrc
└── qt5 // Qt src from git

Regards
Chetan.M

ChetanM

@jsulm

Creating qmake...
............................................................................................Done.
Project ERROR: You cannot configure qtbase separately within a top-level build.

I still get error if i run
../qtsrc/qt5/qtbase/configure -device linux-beagleboard-g++

can you please suggest

Regards
Chetan.M

jbates

@ChetanM Did you ever resolve this? I'm stumbling with the same issue.

SGaist

@jbates hi and welcome to devnet,

Just a hunch, did you try using the full path to the configure script ?

jbates

@SGaist Thanks for the reply, Yes I did.
I resolved the problem by deleting the .qmake* files in my home directory.