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All, |
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|
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mgorny opened up a bug[1], which requests for all eclasses that use the |
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'prefix' USE-flag to be "fixed" to add 'prefix' to IUSE. |
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|
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While the 'prefix' USE-flag has since its introduction belonged to that |
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group of USE-flags that are not supposed to be set by the user |
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him/herself, it is not covered by any definition claiming it is. |
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(Judging by PMS.) Other flags in this category are the userland_*, |
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elibc_*, kernel_*, x86, amd64, etc. flags. |
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With the introduction of IMPLICIT_IUSE (scheduled for EAPI 5), a phrase |
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has been added to PMS, that finally makes a statement on what's supposed |
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to be in IUSE, and what not[2]. To me, this patch means that things like |
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userland_BSD, elibc_glibc, etc. do *NOT* belong in IUSE of an |
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ebuild/eclass (and hence should b removed). 'prefix', on the other |
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hand, should be added to IUSE of those ebuilds/eclasses that use them. |
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|
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For EAPI 5 (assuming it contains IMPLICIT_IUSE) the base profile can be |
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enriched with IMPLICIT_IUSE="prefix". |
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|
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For all currently Council approved EAPIs this means 'prefix' has to be |
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added to IUSE. While said bug[1] is assigned to the prefix team, I feel |
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this is actually for the coordinating role, since prefix does not own |
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most of the ebuilds/eclasses that would need changes. |
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|
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In case you wonder why this is a problem now, Portage/repoman has a rule |
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that USE-flags that are masked in the profiles implicitly are defined. |
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Since USE=prefix is masked in the base profile, for Portage this |
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USE-flag is always defined. With the updated PMS documentation, |
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however, it is supposed to act differently. |
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Since this would require quite some work, I'd like to hear what the |
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(dev) community thinks of this, if at all, before I'll Cc all |
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responsible teams and maintainers to fix the eclasses, followed by |
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ebuilds. |
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[1] https://bugs.gentoo.org/show_bug.cgi?id=433894 |
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[2] http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commitdiff;h=d9040ab3482af5f790368bac5d053bf1cd760ba8;hp=f9f7729c047300e1924ad768a49c660e12c2f906 |
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|
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-- |
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Fabian Groffen |
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Gentoo on a different level |
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