[gentoo-user] No 'libs' in world file?

[gentoo-user] No 'libs' in world file?

[Tanstaafl]

Hi all,

Googling on a minor issue with perl-cleaner after the 5.20 upgrade, I
ran across this post:

On 2/14/2015 7:39 AM, Mick <michaelkintzios@gmail.com> wrote:
> Yes, you shouldn't really have any libs in your world file. Any 
> required would be pulled in as dependencies.

Is this in fact true?

I checked mine, and found:

# grep -i libs /var/lib/portage/world
app-emulation/emul-linux-x86-baselibs
dev-libs/apr
dev-libs/apr-util
dev-libs/boost
dev-libs/elfutils
dev-libs/glib
dev-libs/gmp
dev-libs/libaio
dev-libs/libdnet
dev-libs/libevent
dev-libs/libffi
dev-libs/libgcrypt
dev-libs/libgpg-error
dev-libs/libksba
dev-libs/libpcre
dev-libs/libyaml
dev-libs/oniguruma
dev-libs/openssl
media-libs/libjpeg-turbo
media-libs/libpng
net-libs/libtirpc
net-libs/serf
sys-libs/cracklib
sys-libs/glibc
sys-libs/libcap
sys-libs/timezone-data

So, should I delete all of these? Even glib and glibc?

Also - is there a definitive guide (preferably for non programmer types)
on just how to properly clean the world file?

Thanks.

Re: [gentoo-user] No 'libs' in world file?

[Jc García]

2015-03-02 8:29 GMT-06:00 Tanstaafl <tanstaafl@libertytrek.org>:

> So, should I delete all of these? Even glib and glibc?
>

Ideally you only want the applications you actually use directly in
your world file, and let portage solve the dependencies for those. If
you really need to emerge a library installed by hand use 'emerge
--oneshot' so it doesn't get added to the world file. I would bet
glibc is already in the @system set or pulled as a dependency for
that. so yes remove it from your world.

> Also - is there a definitive guide (preferably for non programmer types)
> on just how to properly clean the world file?
>

Choose the applications from your world file and "emerge --deselect"
everything else, this wont uninstall anything, just delete some lines
from the world file.

From my own experience, you could get portage to show errors of 100+
lines for not having a proper world file(and some stupid stuff in
package.accept_keywords),  and untangle those is not fun at all.

Re: [gentoo-user] No 'libs' in world file?

[Peter Humphrey]

On Monday 02 March 2015 09:29:15 Tanstaafl wrote:
> Googling on a minor issue with perl-cleaner after the 5.20 upgrade, I
> ran across this post:
> 
> On 2/14/2015 7:39 AM, Mick <michaelkintzios@gmail.com> wrote:
> > Yes, you shouldn't really have any libs in your world file. Any
> > required would be pulled in as dependencies.
> 
> Is this in fact true?
> 
> I checked mine, and found:
> 
> # grep -i libs /var/lib/portage/world
> app-emulation/emul-linux-x86-baselibs
> dev-libs/apr
> dev-libs/apr-util
> dev-libs/boost
> dev-libs/elfutils
> dev-libs/glib
> dev-libs/gmp
> dev-libs/libaio
> dev-libs/libdnet
> dev-libs/libevent
> dev-libs/libffi
> dev-libs/libgcrypt
> dev-libs/libgpg-error
> dev-libs/libksba
> dev-libs/libpcre
> dev-libs/libyaml
> dev-libs/oniguruma
> dev-libs/openssl
> media-libs/libjpeg-turbo
> media-libs/libpng
> net-libs/libtirpc
> net-libs/serf
> sys-libs/cracklib
> sys-libs/glibc
> sys-libs/libcap
> sys-libs/timezone-data
> 
> So, should I delete all of these? Even glib and glibc?

Yes, by all means. The only lib I have in my world file is sys-libs/gpm. 
(I'm not even convinced that should be in the sys-libs category.)

By the way, app-emulation/emul-linux-x86-baselibs will be called in by 
whatever package needs it, along with all the others in your list, so 
don't worry about losing multilib capability.

It could be that all those libs have found their way into world by 
accident, presumably by you forgetting to include -1 when updating them.

-- 
Rgds
Peter.

Re: [gentoo-user] No 'libs' in world file?

[Neil Bothwick]

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On Mon, 02 Mar 2015 09:29:15 -0500, Tanstaafl wrote:

> > Yes, you shouldn't really have any libs in your world file. Any 
> > required would be pulled in as dependencies.
> 
> Is this in fact true?

Yes. The world file is for the software you want installed. Portage will
take care of its dependencies. Putting dependencies in world stops
portage doing its job properly and can cause blockers at a leter dTE.

> 
> I checked mine, and found:
> 
> # grep -i libs /var/lib/portage/world
[LOTS]
> 
> So, should I delete all of these? Even glib and glibc?

Absolutely, especially glibc. When was the last time YOU used glibc, it
is a dependencies, not a user application.

> Also - is there a definitive guide (preferably for non programmer types)
> on just how to properly clean the world file?

Load it into an editor and remove everything that you do not run yourself,
or need as a startup daemon in the case of a server.

The run emerge --depclean -p and read the output carefully. If there is
anything in there you need, add it with emerge -n pkgname and run
depclean again.

Rinse and repeat until depclean shows only packages you know you don't
need yourself, then run it again without -p.


-- 
Neil Bothwick

Secret hacker rule #11: hackers read manuals.

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Re: [gentoo-user] No 'libs' in world file?

[Tanstaafl]

Many thanks to all for the responses, will work on cleaning this up next
weekend (don't like doing things like this on a production server during
the week)...

On 3/2/2015 9:53 AM, Neil Bothwick <neil@digimed.co.uk> wrote:
> On Mon, 02 Mar 2015 09:29:15 -0500, Tanstaafl wrote:
> 
>>> Yes, you shouldn't really have any libs in your world file. Any 
>>> required would be pulled in as dependencies.
>>
>> Is this in fact true?
> 
> Yes. The world file is for the software you want installed. Portage will
> take care of its dependencies. Putting dependencies in world stops
> portage doing its job properly and can cause blockers at a leter dTE.
> 
>>
>> I checked mine, and found:
>>
>> # grep -i libs /var/lib/portage/world
> [LOTS]
>>
>> So, should I delete all of these? Even glib and glibc?
> 
> Absolutely, especially glibc. When was the last time YOU used glibc, it
> is a dependencies, not a user application.
> 
>> Also - is there a definitive guide (preferably for non programmer types)
>> on just how to properly clean the world file?
> 
> Load it into an editor and remove everything that you do not run yourself,
> or need as a startup daemon in the case of a server.
> 
> The run emerge --depclean -p and read the output carefully. If there is
> anything in there you need, add it with emerge -n pkgname and run
> depclean again.
> 
> Rinse and repeat until depclean shows only packages you know you don't
> need yourself, then run it again without -p.
> 
> 

Re: [gentoo-user] No 'libs' in world file?

[Neil Bothwick]

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On Mon, 02 Mar 2015 14:47:28 +0000, Peter Humphrey wrote:

> It could be that all those libs have found their way into world by 
> accident, presumably by you forgetting to include -1 when updating them.

Most likely. Another way of overfilling world is by installing aoftware
to try it out than forgetting to uninstall it, leaving you with
unnecessary software. I avid this by creating a set file
at /etc/portage/sets/temp running emerge -n @temp.

Then I can add any experimental packages to that file and regularly
reviews its contents, either removing packages or transferring them to
world (most often the former) and running emerge -ca.


-- 
Neil Bothwick

Being politically correct means always having to say you're sorry.

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Re: [gentoo-user] No 'libs' in world file?

[Neil Bothwick]

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On Mon, 02 Mar 2015 10:05:16 -0500, Tanstaafl wrote:

You've been on the list long enough to know how well top-posting is
received.

> Many thanks to all for the responses, will work on cleaning this up next
> weekend (don't like doing things like this on a production server during
> the week)...

As long as you don't depclean in anger, removing entries from the world
file will not affect the installed software on your system.


-- 
Neil Bothwick

If the bank returns your cheque marked "Insufficient Funds," call them
 and ask if they mean you or them. :-)

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Re: [gentoo-user] No 'libs' in world file?

[Alan McKinnon]

On Mon, 02 Mar 2015 09:29:15 -0500
Tanstaafl <tanstaafl@libertytrek.org> wrote:

> Hi all,
> 
> Googling on a minor issue with perl-cleaner after the 5.20 upgrade, I
> ran across this post:
> 
> On 2/14/2015 7:39 AM, Mick <michaelkintzios@gmail.com> wrote:
> > Yes, you shouldn't really have any libs in your world file. Any 
> > required would be pulled in as dependencies.
> 
> Is this in fact true?
> 
> I checked mine, and found:
> 
> # grep -i libs /var/lib/portage/world
> app-emulation/emul-linux-x86-baselibs
> dev-libs/apr
> dev-libs/apr-util
> dev-libs/boost
> dev-libs/elfutils
> dev-libs/glib
> dev-libs/gmp
> dev-libs/libaio
> dev-libs/libdnet
> dev-libs/libevent
> dev-libs/libffi
> dev-libs/libgcrypt
> dev-libs/libgpg-error
> dev-libs/libksba
> dev-libs/libpcre
> dev-libs/libyaml
> dev-libs/oniguruma
> dev-libs/openssl
> media-libs/libjpeg-turbo
> media-libs/libpng
> net-libs/libtirpc
> net-libs/serf
> sys-libs/cracklib
> sys-libs/glibc
> sys-libs/libcap
> sys-libs/timezone-data
> 
> So, should I delete all of these? Even glib and glibc?

NO!!!!

You can't blindly use grep for this and equally blindly delete the
resulting list.

You have to consider what world is: A list of packages that YOU want
installed. Portage will pull in all the dependencies by itself to build
those packages. To decide is fomething should or should not be in
world, answer this question:

did you really intend to add the package to world directly, or did you
just emerge it because something else needed it?

Every package in world is there because you put it there, and the libs
are there becuase you should have used -1 and didn't.

You have to examine every entry in world and decide if you need it or
not. Also run --depclean to see if portage then wants to remove it or
not.

It's not easy, it's hard.

> 
> Also - is there a definitive guide (preferably for non programmer
> types) on just how to properly clean the world file?

No. See above.



> 
> Thanks.
> 

Re: [gentoo-user] No 'libs' in world file?

[Tanstaafl]

On 3/2/2015 10:11 AM, Neil Bothwick <neil@digimed.co.uk> wrote:
> On Mon, 02 Mar 2015 10:05:16 -0500, Tanstaafl wrote:
> 
> You've been on the list long enough to know how well top-posting is
> received.

Yes, and you've been around the internet long enough to know that there
are always exceptoions to the rules.

Sending a general 'Thanks', without any follow-ups requested or needed,
is one of those - at least imnsho... ;)

>> Many thanks to all for the responses, will work on cleaning this up next
>> weekend (don't like doing things like this on a production server during
>> the week)...

> As long as you don't depclean in anger, removing entries from the world
> file will not affect the installed software on your system.

Noted, and thanks again...

Re: [gentoo-user] No 'libs' in world file?

[Andreas K. Huettel]

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Hash: SHA512

Am Montag, 2. März 2015, 15:29:15 schrieb Tanstaafl:
> Hi all,
> 
> Googling on a minor issue with perl-cleaner after the 5.20 upgrade, I
> ran across this post:
> 
> On 2/14/2015 7:39 AM, Mick <michaelkintzios@gmail.com> wrote:
> > Yes, you shouldn't really have any libs in your world file. Any
> > required would be pulled in as dependencies.
> 
> Is this in fact true?
> 

Well... let's say it like this:

If you look at your world file, you should for each line be able to 
immediately say "yes I know what this is and I need it". Where "I need it" 
means "I need it directly", and *not* "I need it because some other package 
needs it". 

In most cases this means that libraries should not be in the world file. 
You'll rarely say "Yes I need Boost." Instead you may need LibreOffice, and 
that needs Boost...

The smaller your world file is, the more freedom portage has to resolve 
dependencies.

- -- 

Andreas K. Huettel
Gentoo Linux developer 
dilfridge@gentoo.org
http://www.akhuettel.de/

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Re: [gentoo-user] No 'libs' in world file?

[Neil Bothwick]

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On Mon, 02 Mar 2015 10:14:54 -0500, Tanstaafl wrote:

> > You've been on the list long enough to know how well top-posting is
> > received.  
> 
> Yes, and you've been around the internet long enough to know that there
> are always exceptoions to the rules.
> 
> Sending a general 'Thanks', without any follow-ups requested or needed,
> is one of those - at least imnsho... ;)

I'd say it was not only not an exception to that rule, it is also not an
exception to the rule of not excessively quoting. If you only want to say
thanks, why quote anything?


-- 
Neil Bothwick

Not one shred of evidence supports the notion that life is serious.

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Re: [gentoo-user] No 'libs' in world file?

[Philip Webb]

150303 Andreas K. Huettel wrote:
> If you look at your world file, you should for each line
> be able to immediately say "yes I know what this is and I need it".
> Where "I need it" means "I need it directly"
> and *not* "I need it because some other package needs it". 
> In most cases this means that libraries should not be in the world file. 
> You'll rarely say "Yes I need Boost" : instead you may need LibreOffice
> and that needs Boost ...  The smaller your world file,
> the more freedom portage has to resolve dependencies.

I was going to comment that I had  3  'lib' pkgs in 'world',
but then checked via 'emerge -cpv <pkg>'
& found that all of them --  /sys-libs/readline ncurses zlib  --
were in fact requirements for eg  bash python vim kdelibs cups LO ,
so now I've removed them & hope it will simplify Portage activities a bit.

-- 
========================,,============================================
SUPPORT     ___________//___,   Philip Webb
ELECTRIC   /] [] [] [] [] []|   Cities Centre, University of Toronto
TRANSIT    `-O----------O---'   purslowatchassdotutorontodotca

Re: [gentoo-user] No 'libs' in world file?

[Francisco Ares]

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2015-03-02 23:10 GMT-03:00 Philip Webb <purslow@ca.inter.net>:

> 150303 Andreas K. Huettel wrote:
> > If you look at your world file, you should for each line
> > be able to immediately say "yes I know what this is and I need it".
> > Where "I need it" means "I need it directly"
> > and *not* "I need it because some other package needs it".
> > In most cases this means that libraries should not be in the world file.
> > You'll rarely say "Yes I need Boost" : instead you may need LibreOffice
> > and that needs Boost ...  The smaller your world file,
> > the more freedom portage has to resolve dependencies.
>
> I was going to comment that I had  3  'lib' pkgs in 'world',
> but then checked via 'emerge -cpv <pkg>'
> & found that all of them --  /sys-libs/readline ncurses zlib  --
> were in fact requirements for eg  bash python vim kdelibs cups LO ,
> so now I've removed them & hope it will simplify Portage activities a bit.
>
> --
> ========================,,============================================
> SUPPORT     ___________//___,   Philip Webb
> ELECTRIC   /] [] [] [] [] []|   Cities Centre, University of Toronto
> TRANSIT    `-O----------O---'   purslowatchassdotutorontodotca
>
>
>

Just my 2 cents: AFAIK, only if you are developing a new software that
requires a specific library (or some of them, like "opencv", for example,
which might not have yet been pulled by any other package) , then, and only
then, you might add them to "world".  Then, when your software is ready,
please ( ;-) ) create a package for distributing your work, with those
libraries as dependencies, and remove them from "world", as they will be
pulled in by such package.

As already remembered on this thread, each case must be checked.

Best regards,
Francisco

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Re: [gentoo-user] No 'libs' in world file?

[Tanstaafl]

On 3/2/2015 6:04 PM, Neil Bothwick <neil@digimed.co.uk> wrote:
> On Mon, 02 Mar 2015 10:14:54 -0500, Tanstaafl wrote:

>>> You've been on the list long enough to know how well top-posting is
>>> received.  
>>
>> Yes, and you've been around the internet long enough to know that there
>> are always exceptoions to the rules.
>>
>> Sending a general 'Thanks', without any follow-ups requested or needed,
>> is one of those - at least imnsho... ;)

> I'd say it was not only not an exception to that rule, it is also not an
> exception to the rule of not excessively quoting. If you only want to say
> thanks, why quote anything?

Context...

Someone encountering the thread will see the result, ie, why I am
thanking them.

I think it is silly to argue about this, so I'll leave it at that... if
you disagree, no worries, it is a free internet (for now)...

Re: [gentoo-user] No 'libs' in world file?

[Neil Bothwick]

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On Tue, 3 Mar 2015 08:19:15 -0300, Francisco Ares wrote:

> Just my 2 cents: AFAIK, only if you are developing a new software that
> requires a specific library (or some of them, like "opencv", for
> example, which might not have yet been pulled by any other package) ,
> then, and only then, you might add them to "world".  Then, when your
> software is ready, please ( ;-) ) create a package for distributing
> your work, with those libraries as dependencies, and remove them from
> "world", as they will be pulled in by such package.

This also applies if you need to install anything from outside of
portage. I deal with that by having a separate set calls deps that
includes all such dependencies, and comments showing what needs them. I
find this easier to manage than just bunging it all in one file and
assuming I will remember what was for what in six month's time.


-- 
Neil Bothwick

0 and 1. Now what could be so hard about that?

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Re: [gentoo-user] No 'libs' in world file?

[Daniel Frey]

On 03/03/2015 10:06 PM, Walter Dnes wrote:
>   And a "lib" is not necessarily always a direct dependancy.  E.g. my
> HDHomerun OTA TV tuner requires the media-libs/libhdhomerun ebuild to be
> explicitly installed.
> 

Wait, really? I've had mine since 2010 and I've never had that package
installed (media-libs/libhdhomerun). MythTV detected and used it without
complaints. Or is it required for other programs?

I just tried genlop and it is saying I've never had any version of
libhdhomerun installed.

Dan

Re: [gentoo-user] No 'libs' in world file?

[Walter Dnes]

On Tue, Mar 03, 2015 at 12:01:04AM +0100, Andreas K. Huettel wrote

> Well... let's say it like this:
> 
> If you look at your world file, you should for each line be able to 
> immediately say "yes I know what this is and I need it". Where "I need it" 
> means "I need it directly", and *not* "I need it because some other package 
> needs it". 
> 
> In most cases this means that libraries should not be in the world file. 
> You'll rarely say "Yes I need Boost." Instead you may need LibreOffice, and 
> that needs Boost...

  Rather than try to remember everything, let the computer do some of
the work for you (novel idea <G>).  Use the command...

xargs -a /var/lib/portage/world -n 1 equery d

to determine which files would be pulled in as dependancies.
***WARNING: DO NOT REDIRECT OR PIPE***.  It won't work.  Use a 2nd term
for the output, along with {CTRL-S} and {CTRL-Q} to stop and restart the
output.  You'l have to run the command with root privileges to see the
file /var/lib/portage/world  Here's how it starts off for me...


[d531][root][~] xargs -a /var/lib/portage/world -n 1 equery d                  
 * These packages depend on app-admin/localepurge:
 * These packages depend on app-admin/logrotate:
 * These packages depend on app-admin/sudo:
 * These packages depend on app-admin/syslog-ng:
 * These packages depend on app-arch/zip:
sys-devel/gcc-4.8.3 (app-arch/zip)
www-client/seamonkey-2.32 (app-arch/zip)

  There are no ebuilds depending on localepurge, logrotate, sudo, or
syslog-ng.  It's up to you whether or not you want them.  However, zip
is an absolute dependancy of gcc and seamonkey, and can be removed from
my world file.  Absolute dependancies are easy.  *BEWARE OF CONDITIONAL
DEPENDANCIES*; e.g.

 * These packages depend on dev-perl/File-MimeInfo:
x11-misc/xdg-utils-1.1.0_rc2 (perl ? dev-perl/File-MimeInfo)

  That says if you've built x11-misc/xdg-utils-1.1.9_rc2 withe the
"perl" USE flag, then dev-perl/File-MimeInfo will be pulled in as a
dependancy.  You have to check whether you've used that USE flag on that
ebuilds.

  And a "lib" is not necessarily always a direct dependancy.  E.g. my
HDHomerun OTA TV tuner requires the media-libs/libhdhomerun ebuild to be
explicitly installed.

 
Walter Dnes <waltdnes@waltdnes.org>
I don't run "desktop environments"; I run useful applications

Re: [gentoo-user] No 'libs' in world file?

[Peter Humphrey]

On Wednesday 04 March 2015 01:06:58 Walter Dnes wrote:

> ... zip is an absolute dependancy of gcc and seamonkey ...

 A word to the wise: dependency. No As.

:)

-- 
Rgds
Peter.

Re: [gentoo-user] No 'libs' in world file?

[Walter Dnes]

On Tue, Mar 03, 2015 at 05:30:34PM -0800, Daniel Frey wrote
> On 03/03/2015 10:06 PM, Walter Dnes wrote:
> >   And a "lib" is not necessarily always a direct dependancy.  E.g. my
> > HDHomerun OTA TV tuner requires the media-libs/libhdhomerun ebuild to be
> > explicitly installed.
> > 
> 
> Wait, really? I've had mine since 2010 and I've never had that package
> installed (media-libs/libhdhomerun). MythTV detected and used it without
> complaints. Or is it required for other programs?
> 
> I just tried genlop and it is saying I've never had any version of
> libhdhomerun installed.

  /usr/portage/distfiles/libhdhomerun_20140121.tgz is all of 47,685
bytes.  It provides a ***COMMAND LINE INTERFACE***.  I happen to be a
"command line commando""  Using that command line interface, I've rigged
up a bash script and a text config file that allows me to fire up the
local CBC station, on tuner 0, with the command...

tv 0 cbc

Similarly, I can launch the local CTV station with the command

tv 0 ctv

  The other option is to "save 47,685 bytes" and emerge MythTV instead

USE="mysql" emerge -pv mythtv

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N     ] media-libs/libogg-1.3.1  USE="-static-libs" 398 KiB
[ebuild  N     ] dev-libs/libaio-0.3.110  USE="-static-libs {-test}" 42 KiB
[ebuild  N     ] media-libs/xvid-1.3.3  USE="threads -examples -pic" 0 KiB
[ebuild  N     ] media-fonts/liberation-fonts-2.00.0-r1  USE="X -fontforge" 2,249 KiB
[ebuild  N     ] app-admin/eselect-qtgraphicssystem-1.1.1  2 KiB
[ebuild  N     ] media-libs/libmp4v2-2.0.0  USE="-static-libs {-test} -utils" 485 KiB
[ebuild  N     ] dev-perl/TermReadKey-2.300.200-r1  37 KiB
[ebuild  N     ] dev-perl/Net-Daemon-0.480.0-r1  29 KiB
[ebuild  N     ] virtual/perl-Sys-Syslog-0.320.0-r2  0 KiB
[ebuild  N     ] virtual/perl-Time-HiRes-1.972.500-r3  0 KiB
[ebuild  N     ] virtual/perl-Term-ANSIColor-4.20.0-r2  0 KiB
[ebuild  N     ] virtual/perl-Getopt-Long-2.390.0-r1  0 KiB
[ebuild  N     ] dev-qt/qtcore-4.8.5-r2:4  USE="exceptions glib ssl (-aqua) -debug -iconv -icu -pch -qt3support" 235,832 KiB
[ebuild  N     ] media-libs/libvorbis-1.3.4  USE="-static-libs" 1,066 KiB
[ebuild  N     ] media-libs/taglib-1.9.1-r2  USE="asf mp4 -debug -examples {-test}" 639 KiB
[ebuild  N     ] media-sound/lame-3.99.5-r1  USE="-debug -mp3rtp -sndfile -static-libs" CPU_FLAGS_X86="(-mmx)" 568 KiB
[ebuild  N     ] x11-misc/wmctrl-1.07-r1  86 KiB
[ebuild  N     ] media-libs/faac-1.28-r4  USE="-static-libs" 663 KiB
[ebuild  N     ] x11-libs/libXinerama-1.1.3  USE="-static-libs" 272 KiB
[ebuild  N     ] dev-db/mysql-init-scripts-2.0-r1  0 KiB
[ebuild  N     ] dev-perl/PlRPC-0.202.0-r2  18 KiB
[ebuild  N     ] dev-qt/qtscript-4.8.5:4  USE="exceptions jit (-aqua) -debug -iconv -pch" 0 KiB
[ebuild  N     ] dev-qt/qtdbus-4.8.5:4  USE="exceptions (-aqua) -debug -pch" 0 KiB
[ebuild  N     ] media-libs/libtheora-1.1.1-r1  USE="encode -doc -examples -static-libs" 1,859 KiB
[ebuild  N     ] dev-qt/qtxmlpatterns-4.8.5:4  USE="(-aqua) -debug -pch" 0 KiB
[ebuild  N     ] dev-perl/DBI-1.628.0  USE="{-test}" 573 KiB
[ebuild  N     ] dev-qt/qtgui-4.8.5-r3:4  USE="accessibility exceptions glib xv (-aqua) -cups -debug -egl -gtkstyle -mng -nas -nis -pch -qt3support -tiff -trace -xinerama" 51 KiB
[ebuild  N     ] dev-qt/qtwebkit-4.8.5:4  USE="exceptions jit (-aqua) -debug -gstreamer -icu -pch" 0 KiB
[ebuild  N     ] dev-qt/qtopengl-4.8.5:4  USE="exceptions (-aqua) -debug -egl -pch -qt3support" 0 KiB
[ebuild  N     ] dev-db/mariadb-10.0.15-r1  USE="bindist community perl ssl -cluster -debug -embedded -extraengine -jemalloc -latin1 -minimal -odbc -oqgraph -pam -profiling (-selinux) -sphinx -static -static-libs -systemtap -tcmalloc {-test} -tokudb -xml" 55,691 KiB
[ebuild  N     ] virtual/mysql-5.6-r2:0/18  USE="-embedded -minimal -static -static-libs" 0 KiB
[ebuild  N     ] dev-perl/DBD-mysql-4.20.0-r1  USE="-embedded" 135 KiB
[ebuild  N     ] dev-qt/qtsql-4.8.5:4  USE="exceptions mysql sqlite
(-aqua) -debug (-firebird) -freetds -oci8 -odbc -pch -postgres -qt3support" 0 KiB
[ebuild  N     ] media-tv/mythtv-0.27_p20140321  USE="hls theora vorbis xml xvid -alsa (-altivec) -autostart -bluray -cec -crystalhd -debug -dvb -dvd -egl -fftw -ieee1394 -jack -lcd -libass -lirc -perl -pulseaudio -python -raop -vaapi -vdpau -xmltv" INPUT_DEVICES="-joystick" 84,182 KiB

total: 34 packages (34 new), Size of downloads: 384,869 KiB

  No thanks.

-- 
Walter Dnes <waltdnes@waltdnes.org>
I don't run "desktop environments"; I run useful applications

Re: [gentoo-user] No 'libs' in world file?

[Philip Webb]

150304 Peter Humphrey wrote:
> On Wednesday 04 March 2015 01:06:58 Walter Dnes wrote:
>> ... zip is an absolute dependancy of gcc and seamonkey ...
> A word to the wise: dependency. No As.

You mean "A's" or more accurately "A" ... (grin).

Otherwise, why do Gentooers say 'dependency' when they mean 'requirement' ?
-- eg above, while Zip is not required for Gcc or Seamonkey or VICE VERSA,
Zip could hardly depend on Seamonkey, but Seamonkey could require it.

Making sense of Portage output + dox is difficult enough, as it is.

-- 
========================,,============================================
SUPPORT     ___________//___,   Philip Webb
ELECTRIC   /] [] [] [] [] []|   Cities Centre, University of Toronto
TRANSIT    `-O----------O---'   purslowatchassdotutorontodotca

[OT] Re: [gentoo-user] No 'libs' in world file?

[Peter Humphrey]

On Wednesday 04 March 2015 05:48:15 Philip Webb wrote:
> 150304 Peter Humphrey wrote:
> > On Wednesday 04 March 2015 01:06:58 Walter Dnes wrote:
> >> ... zip is an absolute dependancy of gcc and seamonkey ...
> > 
> > A word to the wise: dependency. No As.
> 
> You mean "A's" or more accurately "A" ... (grin).

Nope. Certainly not "A's" (ugh!), and not "A" either, since the only 
number that's singular is 1. (You wouldn't say "my fruit bowl's empty - 
it contains no apple.")

> Otherwise, why do Gentooers say 'dependency' when they mean
> 'requirement' ? -- eg above, while Zip is not required for Gcc or
> Seamonkey or VICE VERSA, Zip could hardly depend on Seamonkey, but
> Seamonkey could require it.
> 
> Making sense of Portage output + dox is difficult enough, as it is.

No argument there. I could say something rude about Americans and 
English, but I'll contain myself. P)

-- 
Rgds
Peter.

Re: [gentoo-user] No 'libs' in world file?

[Neil Bothwick]

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On Wed, 4 Mar 2015 05:48:15 -0500, Philip Webb wrote:

> Otherwise, why do Gentooers say 'dependency' when they mean
> 'requirement' ? 

It's a general Linux thing, not only Gentoo.

> -- eg above, while Zip is not required for Gcc or
> Seamonkey or VICE VERSA, Zip could hardly depend on Seamonkey, but
> Seamonkey could require it.

Seamonkey depends on zip, so zip is a dependency of Seamonkey. In this
context dependency is a synonym of requirement, unlike the political
context.


-- 
Neil Bothwick

Most software is about as user-friendly as a cornered rat!

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Re: [gentoo-user] No 'libs' in world file?

[Alexander Kapshuk]

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On Wed, Mar 4, 2015 at 8:06 AM, Walter Dnes <waltdnes@waltdnes.org> wrote:

> On Tue, Mar 03, 2015 at 12:01:04AM +0100, Andreas K. Huettel wrote
>
> > Well... let's say it like this:
> >
> > If you look at your world file, you should for each line be able to
> > immediately say "yes I know what this is and I need it". Where "I need
> it"
> > means "I need it directly", and *not* "I need it because some other
> package
> > needs it".
> >
> > In most cases this means that libraries should not be in the world file.
> > You'll rarely say "Yes I need Boost." Instead you may need LibreOffice,
> and
> > that needs Boost...
>
>   Rather than try to remember everything, let the computer do some of
> the work for you (novel idea <G>).  Use the command...
>
> xargs -a /var/lib/portage/world -n 1 equery d
>

Just thought of using 'equery d $(</var/lib/portage/world)' as an
alternative to the command line above. Not that there's something wrong
with the original suggestion.



>
> to determine which files would be pulled in as dependancies.
> ***WARNING: DO NOT REDIRECT OR PIPE***.  It won't work.  Use a 2nd term
> for the output, along with {CTRL-S} and {CTRL-Q} to stop and restart the
> output.  You'l have to run the command with root privileges to see the
> file /var/lib/portage/world  Here's how it starts off for me...
>
>
> [d531][root][~] xargs -a /var/lib/portage/world -n 1 equery d
>  * These packages depend on app-admin/localepurge:
>  * These packages depend on app-admin/logrotate:
>  * These packages depend on app-admin/sudo:
>  * These packages depend on app-admin/syslog-ng:
>  * These packages depend on app-arch/zip:
> sys-devel/gcc-4.8.3 (app-arch/zip)
> www-client/seamonkey-2.32 (app-arch/zip)
>
>   There are no ebuilds depending on localepurge, logrotate, sudo, or
> syslog-ng.  It's up to you whether or not you want them.  However, zip
> is an absolute dependancy of gcc and seamonkey, and can be removed from
> my world file.  Absolute dependancies are easy.  *BEWARE OF CONDITIONAL
> DEPENDANCIES*; e.g.
>
>  * These packages depend on dev-perl/File-MimeInfo:
> x11-misc/xdg-utils-1.1.0_rc2 (perl ? dev-perl/File-MimeInfo)
>
>   That says if you've built x11-misc/xdg-utils-1.1.9_rc2 withe the
> "perl" USE flag, then dev-perl/File-MimeInfo will be pulled in as a
> dependancy.  You have to check whether you've used that USE flag on that
> ebuilds.
>
>   And a "lib" is not necessarily always a direct dependancy.  E.g. my
> HDHomerun OTA TV tuner requires the media-libs/libhdhomerun ebuild to be
> explicitly installed.
>
>
> Walter Dnes <waltdnes@waltdnes.org>
> I don't run "desktop environments"; I run useful applications
>
>

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