Re: [XEN PATCH v4 16/18] build,xsm: Fix multiple call

[Jan Beulich <jbeulich@xxxxxxxx>]

On 31.03.2020 12:31, Anthony PERARD wrote:
> Both script mkflask.sh and mkaccess_vector.sh generates multiple
> files. Exploits the 'multi-target pattern rule' trick to call each
> scripts only once.

Isn't this a general fix, which may even want backporting? If so,
this would better be at or near the beginning of the series.

> --- a/xen/xsm/flask/Makefile
> +++ b/xen/xsm/flask/Makefile
> @@ -26,14 +26,14 @@ mkflask := policy/mkflask.sh
>  quiet_cmd_mkflask = MKFLASK $@
>  cmd_mkflask = $(CONFIG_SHELL) $(mkflask) $(AWK) include $(FLASK_H_DEPEND)
>  
> -$(FLASK_H_FILES): $(FLASK_H_DEPEND) $(mkflask) FORCE
> +$(patsubst include/%,\%/%,$(FLASK_H_FILES)): $(FLASK_H_DEPEND) $(mkflask) 
> FORCE

Since what $(FLASK_H_FILES) contains is well under our control,
how about the simpler

$(subst include/,%/,$(FLASK_H_FILES)): ...

? Preferably with this and preferably with it moved ahead
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

Jan