Re: [PATCH v2] Makefile: Fix config-devices.mak not regenerated when Kconfig updated

[Laurent Vivier <lvivier@redhat.com>]

On 05/11/2019 16:12, Philippe Mathieu-Daudé wrote:
> When hw/$DIR/Kconfig is changed, the corresponding generated
> hw/$DIR/config-devices.mak is not being updated.
> Fix this by including all the hw/*/Kconfig files to the prerequisite
> names of the rule generating the config-devices.mak files.
> 
> Fixes: e0e312f3525a (build: switch to Kconfig)
> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> v2:
> Simplify using the wildcard() function instead of calling `sed` (danpb)
> 
> You can see this tread where Peter reported the failure:
> https://lists.gnu.org/archive/html/qemu-devel/2019-11/msg00125.html
> 
> How to reproduce:
> 
>   $ git checkout branch_modifying_kconfig
>   $ make i386-softmmu/all
>   $ make clean
>   $ git checkout prev_branch
>   $ make clean
>   $ make i386-softmmu/all
>     # error
> 
> If OK, I plan to include this fix in the "hw/i386/pc: Split PIIX3
> southbridge from i440FX northbridge" pull request.
> ---
>  Makefile | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/Makefile b/Makefile
> index 0e994a275d..f4fca08cd7 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -384,7 +384,8 @@ MINIKCONF_ARGS = \
>      CONFIG_LINUX=$(CONFIG_LINUX) \
>      CONFIG_PVRDMA=$(CONFIG_PVRDMA)
>  
> -MINIKCONF_INPUTS = $(SRC_PATH)/Kconfig.host $(SRC_PATH)/hw/Kconfig
> +MINIKCONF_INPUTS = $(SRC_PATH)/Kconfig.host $(SRC_PATH)/hw/Kconfig \
> +                   $(wildcard $(SRC_PATH)/hw/*/Kconfig)
>  MINIKCONF = $(PYTHON) $(SRC_PATH)/scripts/minikconf.py \
>  
>  $(SUBDIR_DEVICES_MAK): %/config-devices.mak: default-configs/%.mak $(MINIKCONF_INPUTS) $(BUILD_DIR)/config-host.mak
> 

Reviewed-by: Laurent Vivier <lvivier@redhat.com>