On 05/12/2025 4:07 pm, Mykola Kvach wrote:
> From: Mykola Kvach <[email protected]>
>
> Keep the pkg-config lookup for SYSTEMD_SLEEP_DIR, but fall back to
> "$(prefix)/lib/systemd/system-sleep/" if the variable remains unset.
> This avoids reintroducing a build-time dependency on systemd-devel while
> still honoring the path provided by pkg-config when present.
>
> Fixes: e54a6cd6a1f3 ("systemd: Add hooks to stop/start xen-watchdog on 
> suspend/resume")
> Reported-by: Marek Marczykowski-Górecki <[email protected]>
> Suggested-by: Andrew Cooper <[email protected]>
> Signed-off-by: Mykola Kvach <[email protected]>
> ---
> Build in which the regression was detected:
> https://gitlab.com/xen-project/people/marmarek/xen/-/jobs/10959608099
> ---
>  m4/systemd.m4 | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/m4/systemd.m4 b/m4/systemd.m4
> index c47a25ef93..5fb5a7089e 100644
> --- a/m4/systemd.m4
> +++ b/m4/systemd.m4
> @@ -81,7 +81,7 @@ AC_DEFUN([AX_CHECK_SYSTEMD_LIBS], [
>       ], [])
>  
>       AS_IF([test "x$SYSTEMD_SLEEP_DIR" = x], [
> -         AC_MSG_ERROR([SYSTEMD_SLEEP_DIR is unset])
> +         SYSTEMD_SLEEP_DIR="\$(prefix)/lib/systemd/system-sleep/"
>       ], [])
>  ])
>  

Acked-by: Andrew Cooper <[email protected]>

Thanks.

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