Subject: Re: [PATCH v4 01/36] Makefile: mark "check" target as .PHONY

From: Emily Shaffer <[email-masked]>
Date: Thu, 19 Aug 2021 17:04:14 -0700

On Tue, Aug 03, 2021 at 09:38:27PM +0200, Ævar Arnfjörð Bjarmason wrote:
> 
> Fix a bug in 44c9e8594e (Fix up header file dependencies and add
> sparse checking rules, 2005-07-03), we never marked the phony "check"
> target as such.

A simple enough change, and it gave me an excuse to go and look up what
.PHONY actually does. Thanks ;)

> 
> Perhaps we should just remove it, since as of a combination of
> 912f9980d2 (Makefile: help people who run 'make check' by mistake,
> 2008-11-11) 0bcd9ae85d (sparse: Fix errors due to missing
> target-specific variables, 2011-04-21) we've been suggesting the user
> run "make sparse" directly.
> 
> But under that mode it still does something, as well as directing the
> user to run "make test" under non-sparse. So let's punt that and
> narrowly fix the PHONY bug.
> 
> Signed-off-by: Ævar Arnfjörð Bjarmason <[email-masked]>
Reviewed-by: Emily Shaffer <[email-masked]>
> ---
>  Makefile | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Makefile b/Makefile
> index c6f6246bf63..2ff038069e8 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -2931,6 +2931,7 @@ hdr-check: $(HCO)
>  style:
>  	git clang-format --style file --diff --extensions c,h
>  
> +.PHONY: check
>  check: config-list.h command-list.h
>  	@if sparse; \
>  	then \
> -- 
> 2.33.0.rc0.595.ge31e012651d
>