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garskoci
n00b
Joined: 05 Jun 2003
Posts: 44
Location: Chicago, IL - U.S.A.
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 Posted: Sun Nov 06, 2005 3:06 pm Post subject: USE variable config |
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Hello!
First, I'm pretty with installing Gentoo. This is my third time. the first was on a sparc station. Which went really well. The second was yesterday and it did not go so well. I recieved an error during compilation. I was using 2005.0, so I thought that I would start from scratch with the current version and start over.
I'm trying to build a headless game server. When it's all said and done, the only packages that I'm really interested in is the base OS, bash, Perl, Python, screen and ssh. I do send messages over a a port and ssh to the box often. I'm at the point of setting up my make.conf file. It's a bit daunting to set the USE variable, but this is what I thought that it should be. Can anyone tell me if I should add anythingh else or remove any of these?
Thanks! I appreciate any assistance.
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USE="acl bash-completion bcmath caps cdr ctype dedicated hal ipv6 ldap libcaca lm_sensors memlimit mhash minimal pcre perl python session sockets sse symlink sysvipc tcpd"
The descriptions.............
acl Adds support for Access Control Lists
bash-completion Enable bash-completion support
bcmath Adds support for libbcmath
caps Use Linux capabilities library to control privileges.
cdr Adds support for CD writer hardware
ctype Enables ctype functions
dedicated Adds support for dedicated game servers (some packages do not provide clients and servers at the same time)
hal Enable Hardware Abstraction Layer (HAL) support
ipv6 Adds support for IP version 6
ladcca Adds Linux Audio Developer's Configuration and Connection API support (LADCCA)
lm_sensors Adds linux lm_sensors (hardware sensors) support
memlimit Adds memory usage limiting in supporting programs
mhash Adds support for the mhash library
minimal Install a very minimal build (disables, for example, plugins, fonts, most drivers, non-critical features)
pcre Adds support for Perl Compatible Regular Expressions
perl Adds support/bindings for the Perl language.
python Adds support/bindings for the Python language
session Adds persistent session support
sockets Adds support for tcp/ip sockets
sse fast floating point optimization for PentiumIII+ class chips
symlink Force kernel ebuilds to automatically update the /usr/src/linux symlink.
sysvipc Support for System V-compatible inter-process communication
tcpd Adds support for TCP wrappers
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Shan
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Joined: 04 Nov 2003
Posts: 558
Location: /dev/null
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| Posted: Sun Nov 06, 2005 3:18 pm Post subject: |
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My first thoughts is that you should explicitly declare X, KDE, Gnome, QT, and GTK(2) as /negative/ values. Some programs build with them by default unless you tell them otherwise.
Additionally, if this is to be a headless unit, why are you enabling cd-writer support? The device will work fine as a CD-ROM without CDR support if that was your line of reasoning.
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garskoci
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Joined: 05 Jun 2003
Posts: 44
Location: Chicago, IL - U.S.A.
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| Posted: Sun Nov 06, 2005 3:30 pm Post subject: |
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Shan, thanks for yor help! I like the idea of making the GUI components negative. As for cdr, that was my thought. I will pull it.
Anything else??? |
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Shan
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Posts: 558
Location: /dev/null
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| Posted: Sun Nov 06, 2005 3:52 pm Post subject: |
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| garskoci wrote: | Shan, thanks for yor help! I like the idea of making the GUI components negative. As for cdr, that was my thought. I will pull it.
Anything else??? |
As a general rule, its my policy to leave a flag unset (that is, gentoo default) unless I know exactly what it does and what the benefits / detriments are. In this case, obviously setting -'s to gui components is a good thing, and from my understanding dedicated minimal and memlimit are things you're going to need but is adding additional support for perl python and bash going to be benificial / needed, or just take up more drive space / cpu cycles? These things especially are included by default and used when needed. I guess I'm just advocating a "not unless I need to" policy here, not telling you that you SHOULDN'T tick those flags.
At any rate, the Gentoo-wiki might have some more information that'll be helpful. In particular the following could give you some pointers:
http://gentoo-wiki.com/HOWTO_setup_a_home-server
http://gentoo-wiki.com/HOWTO_Setup_A_Battlefield_2_Dedicated_Server
http://gentoo-wiki.com/HOWTO_Setup_An_UT2004_Dedicated_Server
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garskoci
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Location: Chicago, IL - U.S.A.
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| Posted: Sun Nov 06, 2005 4:18 pm Post subject: |
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| If that's the case, is something like gps - adds support for global positioning system automatically included? I would assume that it would be, but...... Also, if mark things that I don't want, such as X or gnome, should I go through the list and flag others like; gif, opengl or openal? Sorry for all of the noob questions. I'm just trying to understand the way this part works. Thanks again. |
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garskoci
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Joined: 05 Jun 2003
Posts: 44
Location: Chicago, IL - U.S.A.
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| Posted: Sun Nov 06, 2005 4:39 pm Post subject: |
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OK, after reading the doc on USE again.
This is pretty much the default set up for USE.
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(This example is the sum of the settings in base, default-linux,
default-linux/x86 and default-linux/x86/2004.3)
USE="x86 oss apm arts avi berkdb bitmap-fonts crypt cups encode fortran f77 foomaticdb gdbm gif gpm gtk gtk2 imlib jpeg kde gnome libg++ libwww mad mikmod motif mpeg ncurses nls oggvorbis opengl pam pdflib png python qt quicktime readline sdl spell ssl svga tcpd truetype X xml2 xmms xv zlib"
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If this is the case, should I take the definition above and negate those that I don't want, such as; mpeg, qt, gtk, opengl...... ?
Support for gps ia not default, so I wouldn't need to negate it. Is my understanding correct? |
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Shan
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Joined: 04 Nov 2003
Posts: 558
Location: /dev/null
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| Posted: Sun Nov 06, 2005 10:33 pm Post subject: |
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| garskoci wrote: | OK, after reading the doc on USE again.
This is pretty much the default set up for USE.
| Code: |
(This example is the sum of the settings in base, default-linux,
default-linux/x86 and default-linux/x86/2004.3)
USE="x86 oss apm arts avi berkdb bitmap-fonts crypt cups encode fortran f77 foomaticdb gdbm gif gpm gtk gtk2 imlib jpeg kde gnome libg++ libwww mad mikmod motif mpeg ncurses nls oggvorbis opengl pam pdflib png python qt quicktime readline sdl spell ssl svga tcpd truetype X xml2 xmms xv zlib"
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If this is the case, should I take the definition above and negate those that I don't want, such as; mpeg, qt, gtk, opengl...... ?
Support for gps ia not default, so I wouldn't need to negate it. Is my understanding correct? |
As far as I understand things then yes you're understanding is right; however, if you're not installing support for X QT, et al (Eg -X -qt -kde -gnome -gtk) then as a rule programs that would have support for jpeg and mpeg wont be installed (eg GUI based programs). There are exceptions of course (php for example) but you have to weigh the benefits with the (possible) detriments.
I cant personally forsee any major problems by manually removing support for /everything/ gui based, save that some programs might not have full functionality (EG again PHP isn't even close to GUI based but can use png et al support). At the same time however, many programs that might support these things without needing a gui probably wont show any performance gain by disabling support.
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Installing Gentoo
