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On Sat, 18 Oct 2014 21:18:36 +0100, Neil Bothwick (n...@digimed.co.uk)
wrote about "Re: [gentoo-user] Re: XFCE weather plugin does not work"
(in <20141018211836.63981...@digimed.co.uk>):
> On Sat, 18 Oct 2014 17:18:34 +0100, David W Noon wrote:
>
>>>> I have not done this relying on the promise by Greg Kubaryk
>>>> that the ebuild is epatch_user enabled.
>>
>> That can be a bit variable. I still put the epatch_user command
>> in explicitly, just to be certain.
>
> You don't need to modify the ebuild to do that. Put this in
> /etc/portage/env/category/package
>
> post_src_unpack() { cd "${S}" epatch_user }
>
> You can use unpack or prepare. The difference is that the former
> runs immediately before the prepare function in the ebuild, the
> latter immediately after. Not only does it save manifesting the
> ebuild each time you modify it, it saves having the remember to
> modify it at all after an update. More importantly, your work is
> not destroyed on the next sync.
One can also use /etc/portage/bashrc and enable epatch_user on all
ebuilds. But neither of these is what I want.
I put the src_prepare() function into the specific ebuilds that I want
to install patches, and I avoid having it in ebuilds where I don't
want patches applied. The reason for this is that I create quite a
few patches overall. Many of these are a bit flakey, so I don't want
them applied to what I view as a production system, except under
controlled circumstances. To that end, I maintain my own Portage
tree, exempted from emerge --sync, that has the epatch_user included
in its ebuilds where needed. This, in turn, allows me to keep
experimental patches in /etc/portage/patches without the threat of
them turning up in a normal emerge run.
I accept that this is not a normal user's use case, but I'm not really
a normal user.
- --
Regards,
Dave [RLU #314465]
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dwn...@ntlworld.com (David W Noon)
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