[Buildroot] [PATCH 1/2] package/qt5/qt5imageformats: add optional dependencies

[Yann E. MORIN <yann.morin.1998@free.fr>]

On 2020-08-22 20:25 +0200, Fabrice Fontaine spake thusly:
> Add optional dependencies which are enabled by default:
>  - libmng and tiff are optional dependencies since version 5.0.0 and
>    https://github.com/qt/qtimageformats/commit/5373e3e821c7f43d9c941384437b1d39d6e9d47e
>  - webp is an optional dependency since version 5.3.0 and
>    https://github.com/qt/qtimageformats/commit/4522b350e53471c2ebc6d4692736ee4708445b66
>  - jasper is an optional dependency since version 5.7.0 and
>    https://github.com/qt/qtimageformats/commit/2d59367241aafbfe6acb30202f64e30697028bd9
> 
> Ideally we should use the configure options to disable those
> dependencies if needed especially webp to avoid using the embedded one
> These options are defined here:
> https://code.qt.io/cgit/qt/qtimageformats.git/tree/config_help.txt
> but I'm not skilled enough with the qmake-infrastructure

https://buildroot.org/downloads/manual/manual.html#_infrastructure_for_qmake_based_packages
It would probably be something along the lines of:

    ifeq ($(BR2_PACKAGE_JASPER),y)
    QT5IMAGEFORMATS_DEPENDENCIES += jasper
    QT5IMAGEFORMATS_CONF_OPTS += QT_CONFIG+=jasper
    else
    QT5IMAGEFORMATS_CONF_OPTS += QT_CONFIG-=jasper
    endif

Would you rework this patch, and split it into four patches, one for
each optional dependency, please?

Regards,
Yann E. MORIN.

> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
>  package/qt5/qt5imageformats/qt5imageformats.mk | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/package/qt5/qt5imageformats/qt5imageformats.mk b/package/qt5/qt5imageformats/qt5imageformats.mk
> index ffb094d566..33631a39b2 100644
> --- a/package/qt5/qt5imageformats/qt5imageformats.mk
> +++ b/package/qt5/qt5imageformats/qt5imageformats.mk
> @@ -12,4 +12,10 @@ QT5IMAGEFORMATS_INSTALL_STAGING = YES
>  QT5IMAGEFORMATS_LICENSE = GPL-2.0+ or LGPL-3.0, GPL-3.0 with exception(tools), GFDL-1.3 (docs)
>  QT5IMAGEFORMATS_LICENSE_FILES = LICENSE.GPLv2 LICENSE.GPLv3 LICENSE.GPL3-EXCEPT LICENSE.LGPLv3 LICENSE.FDL
>  
> +QT5IMAGEFORMATS_DEPENDENCIES += \
> +	$(if $(BR2_PACKAGE_JASPER),jasper) \
> +	$(if $(BR2_PACKAGE_LIBMNG),libmng) \
> +	$(if $(BR2_PACKAGE_TIFF),tiff) \
> +	$(if $(BR2_PACKAGE_WEBP),webp)
> +
>  $(eval $(qmake-package))
> -- 
> 2.28.0
> 
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