On 7/17/20 5:25 PM, Peter Maydell wrote:
> The config-devices.mak files are generated by "make", and so they
> should be deleted by "make clean".
> 
> (This is different from config-host.mak and config-all-disas.mak,
> which are created by "configure" and so only deleted by
> "make distclen".)

typo "distclean"

> 
> If we don't delete these files on "make clean", then the build
> tree is left in a state where it has the config-devices.mak
> file but not the config-devices.mak.d file, and make will not
> realize that it needs to rebuild config-devices.mak if, for
> instance, hw/sd/Kconfig changes.
> 
> NB: config-all-devices.mak is also generated by "make", but we
> already remove it on "make clean".
> 

Suggested-by: Paolo Bonzini <pbonz...@redhat.com> ?

Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>

> Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
> ---
> I didn't remove the existing 'rm -f $(SUBDIR_DEVICES_MAK)'
> from the 'distclean' rules on the basis that config-all-devices.mak
> is explicitly removed in both 'distclean' and 'clean', despite
> 'distclean' depending on 'clean'...
> ---
>  Makefile | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Makefile b/Makefile
> index 32345c610ee..c2120d8d48d 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -775,6 +775,7 @@ clean: recurse-clean
>       rm -f storage-daemon/qapi/qapi-gen-timestamp
>       rm -rf qga/qapi-generated
>       rm -f config-all-devices.mak
> +     rm -f $(SUBDIR_DEVICES_MAK)
>  
>  VERSION ?= $(shell cat VERSION)
>  
> 


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