Re: [ptxdist] [PATCH] systemd: add SYSTEMD_CPPFLAGS for kernel headers

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

On Tue, Nov 25, 2014 at 02:24:39PM +0100, Markus Niebel wrote:
> From: Markus Niebel <Markus.Niebel@tq-group.com>
> 
> systemd uses cpp to generate tables for keymappings. Without setting
> CPPFLAGS the toolchain headers will be used for generation but
> local kernel headers for compilation. This can break compile.
> 
> tested with kernel 3.9
> 
> Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
> ---
>  rules/systemd.make | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/rules/systemd.make b/rules/systemd.make
> index b0f7ce0..8c425e4 100644
> --- a/rules/systemd.make
> +++ b/rules/systemd.make
> @@ -44,6 +44,9 @@ SYSTEMD_CONF_ENV += cc_cv_CFLAGS__flto=no
>  SYSTEMD_CFLAGS		:= \
>  	-I$(KERNEL_HEADERS_INCLUDE_DIR)
>  
> +SYSTEMD_CPPFLAGS	:= \
> +	-I$(KERNEL_HEADERS_INCLUDE_DIR)
> +

Hmmm, I think the correct solution is to set SYSTEMD_CPPFLAGS instead of
SYSTEMD_CFLAGS, right? Could you test that please? I don't a BSP right now,
where this fails, so I cannot test it.

Michael

>  #
>  # autoconf
>  #
> -- 
> 2.1.1
> 
> 
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