Re: [Buildroot] [PATCH 1/1] package/qt5webengine-chromium: fix python3.11 build errors

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

Hello Kadir,

On Wed, 25 Oct 2023 22:52:33 +0200
Kadir Yilmaz <kadir.c.yilmaz@gmail.com> wrote:

> qt5webengine fails to build due to changes introduced in python3.11:
> 
> - [864/23192] ACTION //services/metrics/public/cpp:gen_ukm_builders(/ho
>   me/vagrant/output_raspberrypi3_qt5we/build/qt5webengine-5.15.8/src/to
>   olchain:target)
>   ...
>   re.error: global flags not at the start of the expression at position 1
> 
>     https://docs.python.org/3.11/library/re.html
>     (?aiLmsux)
>     Changed in version 3.11: This construction can only be used at the
>     start of the expression.
> 
> - [3742/22323] ACTION //chrome/app:chromium_strings_grit(/home/vagrant/
>   output_raspberrypi3_qt5we/build/qt5webengine-5.15.8/src/toolchain:tar
>   get)
>   ...
>   ValueError: invalid mode: 'rU'
> 
>     open(), io.open(), codecs.open() and fileinput.FileInput no longer
>     accept 'U' (“universal newline”) in the file mode. In Python 3,
>     “universal newline” mode is used by default whenever a file is
>     opened in text mode, and the 'U' flag has been deprecated since
>     Python 3.3. The newline parameter to these functions controls how
>     universal newlines work. (Contributed by Victor Stinner in bpo-37330.)
> 
> Signed-off-by: Kadir Yilmaz <kadir.c.yilmaz@gmail.com>
> ---
>  ...x-build-tools-to-run-with-python3.11.patch | 72 +++++++++++++++++++
>  1 file changed, 72 insertions(+)
>  create mode 100644 package/qt5/qt5webengine-chromium/0003-Fix-build-tools-to-run-with-python3.11.patch

So I did not really apply your patch as-is, because instead I
backported fixes from Chromium upstream instead. As said in another
patch, I just pushed 13 commits that fix a number of things in
qt5webengine, and that allow a successful build of this configuration:

BR2_aarch64=y
BR2_ARM_FPU_VFPV3D16=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
BR2_PACKAGE_MESA3D=y
BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SWRAST=y
BR2_PACKAGE_MESA3D_OPENGL_EGL=y
BR2_PACKAGE_MESA3D_OPENGL_ES=y
BR2_PACKAGE_QT5=y
BR2_PACKAGE_QT5WEBENGINE=y

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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