[Buildroot] [PATCH 6/7] systemd: add optional dependency on libidn2

[Thomas Petazzoni <thomas.petazzoni@bootlin.com>]

Hello,

On Tue,  1 May 2018 22:40:37 +0200, Fabrice Fontaine wrote:

> +# Both options can't be selected at the same time so prefer libidn2
> +ifeq ($(BR2_PACKAGE_LIBIDN2),y)
> +SYSTEMD_DEPENDENCIES += libidn2
> +SYSTEMD_CONF_OPTS += -Dlibidn2=true
> +else
> +SYSTEMD_CONF_OPTS += -Dlibidn2=false
>  ifeq ($(BR2_PACKAGE_LIBIDN),y)
>  SYSTEMD_DEPENDENCIES += libidn
>  SYSTEMD_CONF_OPTS += -Dlibidn=true
>  else
>  SYSTEMD_CONF_OPTS += -Dlibidn=false
>  endif
> +endif

This was a bit complicated so I've replaced with:

# Both options can't be selected at the same time so prefer libidn2
ifeq ($(BR2_PACKAGE_LIBIDN2),y)
SYSTEMD_DEPENDENCIES += libidn2
SYSTEMD_CONF_OPTS += -Dlibidn2=true -Dlibidn=false
else ifeq ($(BR2_PACKAGE_LIBIDN),y)
SYSTEMD_DEPENDENCIES += libidn
SYSTEMD_CONF_OPTS += -Dlibidn=true -Dlibidn2=false
else
SYSTEMD_CONF_OPTS += -Dlibidn=false -Dlibidn2=true
endif

which I believe is simpler and more in line with what we do in
Buildroot usually.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com