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On Tue, Mar 03, 2015 at 12:01:04AM +0100, Andreas K. Huettel wrote |
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> Well... let's say it like this: |
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> |
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> If you look at your world file, you should for each line be able to |
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> immediately say "yes I know what this is and I need it". Where "I need it" |
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> means "I need it directly", and *not* "I need it because some other package |
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> needs it". |
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> |
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> In most cases this means that libraries should not be in the world file. |
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> You'll rarely say "Yes I need Boost." Instead you may need LibreOffice, and |
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> that needs Boost... |
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Rather than try to remember everything, let the computer do some of |
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the work for you (novel idea <G>). Use the command... |
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xargs -a /var/lib/portage/world -n 1 equery d |
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to determine which files would be pulled in as dependancies. |
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***WARNING: DO NOT REDIRECT OR PIPE***. It won't work. Use a 2nd term |
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for the output, along with {CTRL-S} and {CTRL-Q} to stop and restart the |
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output. You'l have to run the command with root privileges to see the |
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file /var/lib/portage/world Here's how it starts off for me... |
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[d531][root][~] xargs -a /var/lib/portage/world -n 1 equery d |
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* These packages depend on app-admin/localepurge: |
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* These packages depend on app-admin/logrotate: |
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* These packages depend on app-admin/sudo: |
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* These packages depend on app-admin/syslog-ng: |
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* These packages depend on app-arch/zip: |
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sys-devel/gcc-4.8.3 (app-arch/zip) |
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www-client/seamonkey-2.32 (app-arch/zip) |
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There are no ebuilds depending on localepurge, logrotate, sudo, or |
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syslog-ng. It's up to you whether or not you want them. However, zip |
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is an absolute dependancy of gcc and seamonkey, and can be removed from |
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my world file. Absolute dependancies are easy. *BEWARE OF CONDITIONAL |
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DEPENDANCIES*; e.g. |
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* These packages depend on dev-perl/File-MimeInfo: |
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x11-misc/xdg-utils-1.1.0_rc2 (perl ? dev-perl/File-MimeInfo) |
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That says if you've built x11-misc/xdg-utils-1.1.9_rc2 withe the |
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"perl" USE flag, then dev-perl/File-MimeInfo will be pulled in as a |
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dependancy. You have to check whether you've used that USE flag on that |
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ebuilds. |
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And a "lib" is not necessarily always a direct dependancy. E.g. my |
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HDHomerun OTA TV tuner requires the media-libs/libhdhomerun ebuild to be |
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explicitly installed. |
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Walter Dnes <waltdnes@××××××××.org> |
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I don't run "desktop environments"; I run useful applications |
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