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On 05-08-2007 20:24:52 +0200, Johan Hattne wrote: |
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> How do I know when to use EROOT and when to use EPREFIX? |
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> |
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> I haven't found any documentation on this (but haven't looked for it in a |
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> while either) -- the issue was briefly mentioned in something I saw on |
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> bugzilla some time ago. |
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Given [1], we know that EROOT is ROOT + EPREFIX. |
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The rule is simple and automatable, whether or not it is "correct", for |
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prefix this rule always holds: |
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If the main tree ebuild uses ROOT, we respect ROOT and usually use |
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EROOT, however if the main tree doesn't use ROOT, we only add the |
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offset, thus EPREFIX. |
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This rule basically means that you /never/ add EROOT yourself, if there |
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isn't a ROOT in the main tree ebuild. Repeating: whether or not that is |
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"correct", for prefix this rule always holds. Rationale is simple: if |
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it is a bug, it is a bug that should be fixed "upstream" (in the main |
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tree), and that fix propagated to prefix. We (I) don't want any extra |
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differences between main tree and prefix, to keep maintenance (and |
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understanding) low. |
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[1] http://www.gentoo.org/proj/en/gentoo-alt/prefix/techdocs.xml |
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-- |
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Fabian Groffen |
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Gentoo on a different level |
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|
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-- |
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