Re: [gentoo-user] Questions for my first ebuild

[Amit Dor-Shifer]

Walter Dnes wrote:
>   I intend to get the Silicon Dust HDHomerun dual tuner box.  It has a
> linux library and CLI plus a separate gtk+ GUI.  The linux source comes
> with a makefile that puts stuff in /usr/local.  But I want at least a
> "wrapper" ebuild so that Portage knows about the files, and can manage
> them.  I'd prefer to write my own ebuild rather than depend on somebody
> else to always have the most recent version supported somwehere in
> layman.  I've RTFM'd a lot, including
> http://devmanual.gentoo.org/ebuild-writing/index.html but am still
> unsure about a few things.  Here's my setup so far...
>
> * The latest file is
> http://download.silicondust.com/hdhomerun/libhdhomerun_20100213.tgz
> (underscore instead of hyphen, bleagh).
> * I've set PORTDIR_OVERLAY="/usr/local/portage" in /etc/make.conf
> * I've actually created /usr/local/portage/media-tv
> * my ebuild file in media-tv is named libhdhomerun-20100213.ebuild
> * here it is so far...
>
> # Copyright 1999-2006 Gentoo Foundation
> # Distributed under the terms of the GNU General Public License v2
> # $Header: $
>
> DESCRIPTION="HD Homerun networked TV tuner base library and API"
> ACTUAL_P="${PN}_${PV}"
> SRC_URI="http://download.silicondust.com/hdhomerun/${ACTUAL_P}.tgz"
> HOMEPAGE="http://www.silicondust.com/downloads/linux"
> KEYWORDS="x86"
> SLOT="0"
> LICENSE="LGPL-3"
> IUSE=""
> RESTRICT="test"
>
> src_install () {
> emake -j1 DESTDIR="${D}" install || die "make failed"
> dobin hdhomerun_config
> dolib libhdhomerun.so
> dodoc README
> insinto /usr/include/local/libhdhomerun
> doins *.h
> }
>
>   Now for the questions...
> 1) do I need to create /usr/local/portage/distfiles?
>
Nope. DISTDIR is /usr/portage/distfiles, even for overlay ebuilds.
> 2) the provided Makefile is supposed to put everything into the
> /usr/local hierarchy.  Does portage/emerge over-ride that, and if so,
> what do I have to do to get send all files to the /usr/local hierarchy?
>
Don't know.
But... AFAIK, '/usr/local' is not a location favored by ebuilds. On my 
server it's virtually empty:
 ~ # find /usr/local/ -type f -exec qfile '{}' \;
app-portage/layman (/usr/local/portage/layman/.keep_app-portage_layman-0)

I'd attempt to have my ebuild install to /usr. Most probably that's a 
very common procedure when moving from barebones makefile to portage. If 
make can't help you w/that (e.g. --prefix /usr or something like that), 
try browsing other ebuilds. qgrep is a handy tool for that.
> 3) any glaring errors ?
>
>   I intend to pick it up next week, so I won't be able to test it
> immediately.  I do want my laptop to be ready to go when I bring the
> tuner box home.
>
>