[Buildroot] [PATCH 07/15] package/apr-util: Use <PKG>_PER_PACKAGE_TWEAK_HOOKS

[Yann E. MORIN <yann.morin.1998@free.fr>]

Herv?, All,

On 2021-06-22 11:47 +0200, Herve Codina spake thusly:
> On Mon, 21 Jun 2021 22:56:32 +0200
> Thomas Petazzoni <thomas.petazzoni@bootlin.com> wrote:
> > On Mon, 21 Jun 2021 16:11:22 +0200
> > Herve Codina <herve.codina@bootlin.com> wrote:
> > 
> > > rules.mk is generated by apr-util configure step and it is private
> > > to apr-util. The modification performed needs to be kept in
> > > <PKG>_POST_CONFIGURE_HOOKS.  
> > 
> > Are you sure ? Both the tweak to build-1/libtool and rules.mk were
> > introduced in commit 84b4c19e551288911a230c2b73e96bc6e2ed12f9 to solve
> > per-package issues. So I would strongly suspect that both of them need
> > to be moved to APR_UTIL_PER_PACKAGE_TWEAK_HOOKS.
> > 
> 
> Yes, both of them need to be done but
> rules.mk is generated by apr-util itself at configure step.
> This file is not present (not yet generated) when APR_UTIL_PER_PACKAGE_TWEAK_HOOKS
> are called.
> 
> XXX_PER_PACKAGE_TWEAK_HOOKS are for tweaking files external to current package
> that leads to overwrite -> Ok for build-1/libtool
> 
> rules.mk is not correct for per-package build but it is generated by 
> apr-util package for apr-util package without any overwrites
> -> Keep tweak in <PKG>_POST_CONFIGURE_HOOKS.

Yes, this all makes sense now.

Also, for apr and apr-utils, we are fortunate enough that the tweak is
not required at configure time, but at build time, which so far allowed
us to use POST_CONFIGURE hooks.

However, for some other packages, we might not be so lucky, and we would
have needed pre- and -postconfigure hooks. The pre-hooks can't be used
anymore for such tweaks, because of file-overwrite detection, so we need
those earlier hook.

Makes sense, makes sense.

So, except for the naming of the variable, when you respin, you can
carry my:

    Reviewed-by: Yann E. MORIN <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> Herv?
> 
> -- 
> Herv? Codina, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
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