[Buildroot] Latest stable Buildroot version 2019.05.1 - qt5webengine builderror

Patrick Koller koller at stettbacher.ch
Wed Aug 21 13:10:42 UTC 2019


Hi buildroot team :)

I am using the latest stable Buildroot version 2019.05.1, but I am 
facing a builderror with the qt5webengine and I hope, that someone could 
help me out with this issue.

My setup:
 From a hardware point of view, I am using a Ka-Ro TX6QP 
computer-on-module with an i.mx6 (ARM Cortex-A9) processor. For this 
reason, I am using the Linaro ARM 2018.05 toolchain (Proposed by 
Buildroot 2019.05.1). The goal is to build the qt5webengine (Latest: 
Qt5.12.2) successfully.

The challenge, I am facing right now:
I wanted to build the qt5webengine, but I got several error messages in 
this style:

> /home/patrickk/tmp/buildroot/buildroot-2019.05.1/buildroot-2019.05.1/output/host/opt/ext-toolchain/arm-linux-gnueabihf/include/c++/7.3.1/cstdlib:75:15: 
> fatal error: stdlib.h: No such file or directory
>  #include_next <stdlib.h>
>                ^~~~~~~~~~
> compilation terminated.

A quick google search (https://bugreports.qt.io/browse/QTBUG-53367) 
showed a known problem with new GCC > 4.8 versions in respect of the 
argument "-isystem". Nevertheless, I was not able to solve my described 
problem at the source.

Next, I tried to update the linaro toolchain to the newest available 
version, but the same error showed off...
Link: 
https://releases.linaro.org/components/toolchain/binaries/7.4-2019.02/arm-linux-gnueabihf/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf.tar.xz

My last attempt was to update Qt5 to version 5.13.0. This showed the 
following error:
> In file included from 
> ../../3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc:25:0:
> ../../3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc: 
> In function ‘sandbox::bpf_dsl::ResultExpr sandbox::RestrictPtrace()’:
> ../../3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc:401:9: 
> error: ‘PTRACE_GET_THREAD_AREA’ was not declared in this scope
>          PTRACE_GET_THREAD_AREA,
>          ^
I am not sure, if my update from Qt5.12..2 to Qt5.13.0 solved the first 
error or even introduced a second error...

It would be awesome, if someone could help me out or give me a hint. I 
appreciate every support I get :)
I attached my .config file to this e-mail. If you need additional 
information, please do not hesitate to contact me.
Thanks in advance.


Best regards

Patrick

===================================================
Stettbacher Signal Processing
Patrick Koller

Office:
Neugutstrasse 54
CH-8600 Dübendorf - Switzerland
Phone +41 - 43 299 57 23
Web: www.stettbacher.ch
===================================================

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