Re: [gentoo-user] Adding an extra patch to an ebuild

[Neil Bothwick]

On Wed, 21 Nov 2012 19:38:26 +1100, Adam Carter wrote:

> Theres a patch attached to the bug i'd like to apply. Unfortunately the
> gcc 4.7.2 ebuild doesnt have "epatch_user", so i need to take the other
> approach listed in the handbook. It suggests i use a custom environment
> but i dont understand how i would apply a patch by setting an
> environment variable. Can anyone explain?

Create /etc/portage/env/sys-devel/gcc-4.7.2 containing

post_src_unpack() {
        cd "${S}"
        epatch_user
}

to run epatch_user after the source has been unpacked. If you need to run
epatch_user after the other patches have been applied, change the function
name to post_src_prepare.

Alternatively, if this is a one-off, you could run

ebuild /path/to/ebuild prepare

then apply the patch manually in $PORTAGE_TMPDIR and complete the emerge
with

ebuild /path/to/ebuild merge


-- 
Neil Bothwick

Those who live by the sword get shot by those who don't.