[Buildroot] [PATCH] package/fail2ban: fix python3 2to3 dependency

Baruch Siach baruch at tkos.co.il
Fri Feb 21 05:15:39 UTC 2020


Hi Thomas,

On Tue, Feb 18 2020, Thomas Petazzoni wrote:
> On Mon, 17 Feb 2020 14:52:11 +0200
> Baruch Siach <baruch at tkos.co.il> wrote:
>
>> The 2to3 utility is needed in the patch phase. Use the correct
>> dependency for that.
>>
>> Fixes:
>> http://autobuild.buildroot.net/results/dd8e225e2a49cfa6735bed11459007003a37c137/
>> http://autobuild.buildroot.net/results/e688c3652bd474ac682984e2e5947701942f0f57/
>>
>> Cc: Angelo Compagnucci <angelo.compagnucci at gmail.com>
>> Cc: Pascal de Bruijn <p.debruijn at unilogic.nl>
>> Signed-off-by: Baruch Siach <baruch at tkos.co.il>
>> ---
>>  package/fail2ban/fail2ban.mk | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/package/fail2ban/fail2ban.mk b/package/fail2ban/fail2ban.mk
>> index 6f023b48a181..0f8e5ab6e694 100644
>> --- a/package/fail2ban/fail2ban.mk
>> +++ b/package/fail2ban/fail2ban.mk
>> @@ -14,7 +14,7 @@ ifeq ($(BR2_PACKAGE_PYTHON3),y)
>>  define FAIL2BAN_PYTHON_2TO3
>>  	$(HOST_DIR)/bin/2to3 --write --nobackups --no-diffs $(@D)/bin/* $(@D)/fail2ban
>>  endef
>> -FAIL2BAN_DEPENDENCIES += host-python3
>> +FAIL2BAN_PATCH_DEPENDENCIES += host-python3
>>  FAIL2BAN_POST_PATCH_HOOKS += FAIL2BAN_PYTHON_2TO3
>
> I don't think this solves the problem. Indeed, patch dependencies are
> special. When you do:
>
> FAIL2BAN_PATCH_DEPENDENCIES += host-python3
>
> You're in fact adding a dependency of fail2ban-patch on
> host-python3-patch, and not on host-python3.
>
> See in pkg-generic.mk:
>
> $$($(2)_TARGET_PATCH):  | $$(patsubst %,%-patch,$$($(2)_FINAL_PATCH_DEPENDENCIES))
>
> See the nice patsubst here ? :-)
>
> And this intentional, and really needed for some Linux extensions
> (Xenomai ? RTAI ? don't remember which one of the two).
>
> So for this fail2ban thing, I guess the easier is to move the 2to3
> execution to a PRE_CONFIGURE_HOOKS, with a good comment above.

How would that fix the issue? Is host-python3 guaranteed to build before
fail2ban PRE_CONFIGURE_HOOKS run unlike POST_PATCH_HOOKS?

baruch

--
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
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