Date: Thu, 06 Dec 2007 22:32:51 -0500 From: Alex Goncharov <alex-goncharov@comcast.net> To: Erik Trulsson <ertr1013@student.uu.se> Cc: freebsd-ports@freebsd.org Subject: Re: (Very) bogus package dependencies Message-ID: <E1J0TxL-000J4O-8V@[24.61.20.41]> In-Reply-To: <20071207001315.GA58050@owl.midgard.homeip.net> (message from Erik Trulsson on Fri, 7 Dec 2007 01:13:15 %2B0100) References: <E1J0Q3W-0000NQ-D9@[24.61.20.41]> <20071207001315.GA58050@owl.midgard.homeip.net>
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,--- I=Alex (Thu, 06 Dec 2007 18:22:58 -0500) ----*
|
| But I cannot find any justification for this:
|
| --------------------
| $ pkg_info -R cdrtools*
| Information for cdrtools-2.01_6:
|
| Required by:
| hal-0.5.8.20070909
| xf86-input-keyboard-1.2.2_1
| xf86-input-mouse-1.2.3
| xf86-video-i810-1.6.5_3
| xf86-video-radeonhd-1.0.0
| xorg-server-1.4_3,1
| --------------------
|
| `xf86-video-radeonhd-1.0.0' requires `cdrtools'?...
|
| How can this happen? Am I missing something?
|
| --------------------
| pwd; echo ===; cat ./+REQUIRED_BY; echo ===; ls -l ./+REQUIRED_BY
| /var/db/pkg/cdrtools-2.01_6
| ===
| hal-0.5.8.20070909
| xf86-input-keyboard-1.2.2_1
| xf86-input-mouse-1.2.3
| xf86-video-i810-1.6.5_3
| xf86-video-radeonhd-1.0.0
| xorg-server-1.4_3,1
| ===
| -rw-r--r-- 1 root wheel 140 Dec 6 17:05 ./+REQUIRED_BY
| --------------------
|
`-------------------------------------------------*
,--- You=Erik (Fri, 7 Dec 2007 01:13:15 +0100) ----*
|
| It looks like an ordinary indirect dependency.
| The drivers as well as the xorg-server all require 'hal'.
Yes:
--------------------
$ pkg_info -r xf86-video-radeonhd-*
....
Dependency: hal-0.5.8.20070909
Dependency: xorg-server-1.4_3,1
--------------------
| 'hal' depends on 'cdrtools'. (It may be that the drivers only
| depend on xorg-server,
| As for why 'hal' requires 'cdrtools' I have no idea, but there is
| probably some reason for it.
And this is precisely the second of the two questions I have in mind:
1. (Purely technical): Where is this originally recorded?
I don't see anything applicable in the port's directory:
--------------------
# find /usr/ports/sysutils/hal -type f| wc -l
567
# find /usr/ports/sysutils/hal -type f -exec grep -Hn 'cdrtools' {} \;| wc -l
0
--------------------
But I do see it in `/var/db/pkg':
--------------------
# find /var/db/pkg/hal-0.5.8.20070909/ -type f -exec grep -Hn 'cdrtools' {} \;
/var/db/pkg/hal-0.5.8.20070909/+CONTENTS:187:@pkgdep cdrtools-2.01_6
/var/db/pkg/hal-0.5.8.20070909/+CONTENTS:188:@comment DEPORIGIN:sysutils/cdrtools
--------------------
So, is it that a port maintainer creates `/var/db/pkg/PKG/*' files
by hand? Based on individual ideas? Not on really "must-to-have"
things, like dependencies on shared libraries?
(I am totally unfamiliar with the mechanism to maintain and package
the ports and would like to understand it.)
2. (Conceptual): How reasonable are these dependencies?
In this case, `/usr/sbin/burncd' is all I need to burn CD's. I
have no practical reason to have `cdrtools' on my computer.
Why would the "Hardware Abstraction Layer for simplifying device
access" depend on a specific set of "CD/CD-R[W] and ISO-9660 image
creation and extraction tools" -- on this set and not on another?
Thanks,
-- Alex -- alex-goncharov@comcast.net --
/*
* If at first you don't succeed, you're doing about average.
*
* -- Leonard Levinson
*/
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