Re: [ptxdist] [PATCH 2/3] chrony: enable support for PPS devices

[Michael Olbrich <m.olbrich@pengutronix.de>]

On Mon, May 31, 2021 at 01:57:07PM +0200, Roland Hieber wrote:
> Signed-off-by: Roland Hieber <rhi@pengutronix.de>
> ---
>  rules/chrony.in   | 8 ++++++++
>  rules/chrony.make | 2 +-
>  2 files changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/rules/chrony.in b/rules/chrony.in
> index f50b864429b0..67a87277fc84 100644
> --- a/rules/chrony.in
> +++ b/rules/chrony.in
> @@ -8,6 +8,7 @@ menuconfig CHRONY
>  	select LIBCAP
>  	select LIBSECCOMP	if CHRONY_SECCOMP
>  	select NETTLE		if CHRONY_USE_NETTLE
> +	select PPS_TOOLS	if CHRONY_PPS_REFCLK
>  	help
>  	  This will install the Chrony NTPD Daemon (chronyd)
>  	  Chrony is a pair of programs which are used to maintain
> @@ -44,6 +45,13 @@ config CHRONY_ADVANCED_COMMAND
>  	  This allows getting advanced NTP time synchronization
>  	  status monitoring from the service.
>  
> +config CHRONY_PPS_REFCLK
> +	bool
> +	prompt "Enable support for PPS devices"
> +	help
> +	  Pulse per second devices signal the start of every second
> +	  with high precision.
> +
>  comment "install options   ---"
>  
>  config CHRONY_INSTALL_CHRONY_COMMAND
> diff --git a/rules/chrony.make b/rules/chrony.make
> index 7cf59f30560c..5edddf5b41a0 100644
> --- a/rules/chrony.make
> +++ b/rules/chrony.make
> @@ -52,7 +52,7 @@ CHRONY_CONF_OPT		:= \
>  	$(call ptx/ifdef, PTXCONF_CHRONY_ADVANCED_COMMAND,--enable-debug,) \
>  	--disable-refclock \
>  	--disable-phc \
> -	--disable-pps \
> +	$(call ptx/ifdef, PTXCONF_CHRONY_PPS_REFCLK,--enable-pps,--disable-pps) \

Use ptx/endis. Does this work? I think we use ptx/ifdef for the other
options because e.g. --enable-ipv6 does not work as expected, so we only
add the --disable-ipv6.

Michael

>  	$(call ptx/ifdef, PTXCONF_GLOBAL_IPV6,,--disable-ipv6) \
>  	--with-user=chrony \
>  	$(call ptx/ifdef, PTXCONF_CHRONY_SECCOMP,--enable-scfilter,) \
> -- 
> 2.29.2
> 
> 
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