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On March 12, 2012 at 2:50 PM Paul Hartman <paul.hartman+gentoo@×××××.com> |
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wrote: |
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|
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> On Mon, Mar 12, 2012 at 1:05 PM, Bruce Hill, Jr. |
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> <daddy@×××××××××××××××××××××.com> wrote: |
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> > These virtual apps are irritating me, and the fanboi answers in |
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#gentoo |
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> > are worse. |
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> > |
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> > What is the purpose of virtual/shadow and why would I want it? |
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> |
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> Virtual packages are kind of an abstraction layer for compatible |
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> alternative packages. Other packages can depend on the virtual instead |
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> of depending on every combination of possible alternatives, and the |
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> user can install whichever of the alternatives he prefers. |
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> |
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> For example, MariaDB is a drop-in replacement for MySQL. From a |
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> dependency standpoint, they are compatible. Instead of any program |
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> depending on MySQL being modified to check for either MySQL or |
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> MariaDB, virtual/mysql was created and it can be satisfied by either |
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> dev-db/mysql or dev-db/mariadb being installed. |
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> |
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> In the case of shadow, he new virtual is to allow you to use either |
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> sys-apps/shadow or sys-apps/hardened-shadow. See here: |
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> http://www.gossamer-threads.com/lists/gentoo/dev/249394 |
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> |
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> If you view the virtual package's ebuild, this line is the key: |
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> RDEPEND="|| ( >=sys-apps/shadow-4.1 sys-apps/hardened-shadow )" |
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> |
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> |
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> HTH :) |
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> |
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Thanks for the kind explanation. I didn't realize hardened was not a |
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profile (selinux is) and wondered why anything to do with hardened would |
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even show up on my system(s). |
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-- |
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Happy Penguin Computers >`) |
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126 Fenco Drive ( \ |
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Tupelo, MS 38801 ^^ |
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662-269-2706; 662-491-8613 |
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support at happypenguincomputers dot com |
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http://www.happypenguincomputers.com |
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